Hawaiian Volcano Observatory

1962 Quarterly Administrative reports

Introductory Note By Thomas L. Wright and Jennifer S. Nakata

Compiled By Jennifer S. Nakata

Summary 25

January, February, and March 1962

By Robert Y. Koyanagi, Harold L. Krivoy, and Arnold T. Okamura

with an introduction By Chester K. Wentworth

Summary 26

April, May, and June 1962

By Arnold T. Okamura, Robert Y. Koyanagi, and Harold L. Krivoy

and

Report on the International Symposium on 

Volcanology, Tokyo, 1962, By Howard. A. Powers

Summary 27

July, August, and September 1962

By Arnold T. Okamura, George Kojima, and Akira Yamamoto

and

Direction of First Motion from Four Earthquakes 

from a Single Focus By Harold L. Krivoy

Summary 28

October, November, and December 1962

By Harold L. Krivoy, Robert Y. Koyanagi, Arnold T. Okamura, and 

George Kojima

and

The 1962 Flank Eruption of Kïlauea By James G. Moore

Open-File Report 2007-1322

U.S. Department of the Interior

U.S. Geological Survey
U.S. Department of the Interior

DIRK KEMPTHORNE, Secretary

U.S. Geological Survey

Mark D. Myers, Director

U.S. Geological Survey, Reston, Virginia 2007

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INTRODUCTORY NOTE

The Hawaiian Volcano Observatory Summaries have been published in the current format since 1956. The Quarterly 

Summaries (1956 through 1973) and the Annual Summaries (1974 through 1985) were originally published as Administrative Reports. These reports have been compiled and published as U.S. Geological Survey Open-File Reports. 

The quarterly reports have been combined and published as one annual summary. All the summaries from 1956 to 

the present are now available as .pdf files at http://www.usgs.gov/pubprod.

The earthquake summary data are presented as a listing of origin time, depth, magnitude, and other location parameters. Network instrumentation, field station sites, and location algorithms are described. Tilt and other deformation 

data are included until Summary 77, January to December 1977. From 1978, the seismic and deformation data are 

published separately, due to differing schedules of data reduction. 

There are eight quarters—from the fourth quarter of 1959 to the third quarter of 1961—that were never published. 

Two of these (4th quarter 1959, 1st quarter 1960) have now been published, using handwritten notes of Jerry Eaton 

(HVO seismologist at the time) and his colleagues. The seismic records for the remaining six summaries went back to 

California in 1961 with Jerry Eaton. Other responsibilities intervened, and the seismic summaries were never prepared.

Chronology

The following Kïlauea eruption chronology covers the two recent reports and the six missing quarters:

Location Beginning Date Ending Date Comment

Kïlauea Iki crater (Kïlauea’s summit) 11/14/1959 12/20/1959 19 eruptive episodes

Kapoho (lower east rift zone) 1/13/1960 2/18/1960 4 eruption stages

Halemaumau (Kïlauea’s summit) 2/24/1961 2/24/1961 Intermittent activity during 

uninterrupted inflation following the 1960 eruption

Halemaumau (Kïlauea’s summit) 3/22/1961 3/25/1961 Same as above.

Halemaumau (Kïlauea’s summit) 7/10/1961 7/17/1961 Same as above.

Heiheiahulu (middle east rift zone) 9/22/1961 9/25/1961 First historical east rift eruption at this location

The 1959-1960 eruptions were among two of the most spectacular Kïlauea eruptions. The HVO staff was kept busy 

with acquisition of unusually high quantities of instrumental data and observations of the two sequences, which 

were separated by less than one month. Even with a year’s interval before the beginning of the summit-east rift sequence in 1961, the staff never caught up, and the seismic records were set aside for later study. 

A total of 1,672 earthquakes—1,106 for 1960 and 566 for 1961—are part of HVO’s cataloged database. The annual 

listings have been appended to the 1st Quarter Report of 1960 and to the 4th Quarter Report for 1961. The number of 

earthquakes is probably low, biased toward the larger magnitudes. The entire HVO catalog, including 1960 and 1961, 

is accessible from the ANSS CATALOG SEARCH site at http://www.ncedc.org/anss/catalog-search.

 Thomas L. Wright and Jennifer S. Nakata 
UNITED STATES

DEPARTMENT OF THE INTERIOR

GEOLOGICAL SURVEY

HAWAIIAN VOLCANO OBSERVATORY

SUMMARY 25

January. February. and March. 1962

By

R. Y. Koyan~gi. H. L. Krivoy. and A. T. Okamura

with an introduction" by C.. 'K. Wentworth

Observatory Staff

Geol,ogy:

J. G. Moore

D. H. Richter (Scientist-in-Charge)

C. K. Wentworth '

Geophysics:

R. Y. Koyanagi

H. L. Krivoy

A. T. Okamura

D. R. Mabey (Gravity Survey)

W. T. Kinoshita (Gravity Survey)

October 1963

Geochemistry:

W. U. Ault

"G. Kojima

R. T. Okamura

Support:

'J. C~ Forbes

W. H. Francis

B'~ J. Loucks

A. Yamamoto
Contents

Page

Introduction------------------~----~~--------------------------- 1

History of the Hawaiian Volcano Observatory, by Chester

K. Wentworth--------------~-~-~------~---------~------~-- 1

Tilting of the ground around Kilauea caldera~~~~~~~~---~~-~~~-~- 3

Seismic sumrnary----·------~~-~--~-~-~~~~---~~--~--~~-----~=~~-~~ 7

Illustrations-~short list

Figure 1. Tilting of the ground around Kilauea caldera-~~-~=~~~ 4

2. Tilting of the ground around Kilauea caldera~u.-~--~- 5

3. Map of the island of Hawaii showing'seismograph

stations operated by the Geological 'Survey and

localities mentioned in the text--------------~·~-- 10

Tables--short list

Table 1. Tilt coordinates at Uwekahuna vault----------~---~---- 6

2. Tilt coordinates and changes at bases around'Kilauea

caldera---------~---~---~-------~-~------------~---- 8

3. Numbers of earthquakes and minutes of tremor recorded

on seismographs around Kilauea caldera--------~----- 11

4. Local earthquakes recorded by seismographs'of the U~So

Geological Survey--~----~------~~-~----~------~-~--- 12

6. UoS o Geological Survey seismograph stations in Hawaii- 34
HAWAIIAN VOLCANO OBSERVATORY SUMMARY 25

By R. Y. Koyanagi, Ho L~ Krivoy, and A. To Okamura

Introduction

Of interest to students of Hawaiian volcanism are the various

approaches to the natural history of this regiono Dr. Chester K.

Wentworth of the HVO staff very kindly prepared "the -following short

summary of his more detailed work on the subject of the history of

the Hawaiian Volcano Observatory. We are very pleased to present

this abstract. therefore. as a guide to historical re"s"earches in

Hawaiian volcanism. Scientists, as well as the agencies'which support

them. are quite incidental to the ageless volcanic process. Dr.

Wentworth describes the painful--often penurious--circumstances under

which workers in Hawaii .have labored to examine a minuscule sample

of the countless events that have built the volcanoes.

History of the Hawaiian Volcano Observatory

By Chester K. Wentworth

The earliest recording of events and history at

Kilauea Volcano was the work of certain individuals among

the Protestant missionaries, who first arrived in Hawaii

in 1820. There were legends among the Polynesians for the

preceding centuries, which were recorded by the missionaries, and also a few notes from the voyages of Cook and

Vancouver.

The condition and history of Kilauea first became-known

to the world through the journals and diaries of certain

members of the missionary company who speculated about

volcanic behavior at the time when valid accounts were just

beginning to be formulated in the rest of the world. There

were also the visits of naval expeditions coming to Hawaii

with various missions in the first half of the 19th century;

these usually visited Kilauea as a favored "world \ionder."

Several of these expeditions left printed accounts or maps.

Later there were specific scientific missions that issued

reports.

From the arrival of the missionaries, there were

individuals among them who made repeated"visits to the

volcanoes and developed a comparative narrative. There was

a growing facility and permanence of communication 0 Among

the recurrent visitors were those who emphasized the need

for a permanent agency and station for observation and

analysis of Kilauea e Such suggestions'were made for 50

1
years before the first effective steps were taken by Thomas

A. Jaggar to organize local interest 'by means of the Hawaiian

Volc'a'no Research' Association and to gain the support of the

Massachusetts Institute of Technologyo The first continued

observations were made by Fo Ao Perret, in 1911. from temporary

buildings on the floor of Kilauea caldera. near the edge of

the Halemaumau pit~ In early 1912. a permanent observatory

building was built. largely with la~or and materials donated by

the citizens of Hilo, and T G Ao Jaggar arrived to take resident

charge. with the continued cooperation of HoVoRoA~ and MoloT o

Publication of the Bulletins of the Hawaiian Volcano

Observatory was commenced 0 During the first decade of the

Observatory, Perret, and H. 0 0 Wood were observers o Later.

in 1919. the sponsorship of the Observatory, with the same

staff and facilities. was transferred to the U.S. Weather

Bureau. At that time R. Ho Finch, who had been with the

latter bureau, carne out as assistant to Jaggaro

In 1924 came the spectacular steam-blast eruption by

which Halemaumau was enlarged to 3,000 feet in diameter and

more than 1.300 feet deep. In July 1924 the Observatory

control was assumed'by the'UaSo' Geological Survey 0 After

the 1924 explosion. Halemaurnau was filled slowly'. mostly by

small flows coming into the bottom of the shallowing pito

Different techniques continued to be devised for studying

the ungerground activitYo In 1935 the Volcano Observatory

became a part of the Hawaii National Park with the same

objectives as before but with a closer participation in the

work of the Park Service.

Dr. Jaggar retired in 1940 0 During the ensuing several

years of the war. Finch. who had succeeded Jaggar as volcanologist. managed to keep active a minimum program'of observations.

He also preserved intact ,essential property of the Observatory

which otherwise might h'ave been lost in the course of moves

made necessary by the burning of the Volcano House hotel and

by growth of Park Service activities o Late in 1947, the

station was transferred back to the U~S~ Geological Survey 0

Since that time there has been a continued growth of the staff

in numbers and skills~ The facilities and support have been

greatly increased,

The 1950's and early 1960's were marked by several,types

of activity, adding greatly to the experience of observers

of this generation 0 However.- Kilauea being a prodigious

uncontrolled phenomenon of irregular habits, it is increasingly

evident that only observing and recording events over many

human generations, or thousands of years, can build a picture

of total activity that will support any presumption to

generalize or predicto

2
Chronological summary

The summit of Kilauea Volcano continued to'swell throughout the

last quarter of 1961 and the first quarter of 1962 0 Outward tilting

of the ground at the inner ring of tilt-bases (U. TM, Kea, and Kam)

averaged about 12 microradians per month from October 8, 1961 to

January 5, 1962 (figo 1) and about 6 microradians per month from

January 5, 1962 to March 29, 1962 (fig o 2)a The most distant

tilt-base, HP, tilted gently toward the caldera dur~ng both quarters,

while gentle tilting at Kal and KN showed"no consistent tilting

pattern.

The frequency of feeble shallow earthquakes from the vicinity

of Kilauea caldera increased steadily throughout the quarter 0 From

about 20 per day during the last 3 months of 1961. the average daily

count of these earthquakes increased to 46. 53, and 83 during January,

February, and March, respectively. Earthquakes from the source about

30 km beneath Halemaumau were prominent again during this quarteri

averaging nearly 10 per day; the largest number--113-~occurredon March

23. In late February another persistent source of earthquakes developed

along the southeastern flank of Kilaueao --The seismograms of these

earthquakes are very difficult to interpret~ normal phases, such as S.

are very poorly developed.· and recorded amplitudes diminish rapidly

between the nearest stations (A. N, and U) and the next closest ones

(Pa, D, ML, Hi).

Five earthquakes were reported felt during January; all of them

were associated with Kilauea Volcano 0 The l~rgestt of magnitude 400,

originated 14 km southwest of Pahoa on January 7 and was felt

th-roughout the island e The three earthquakes felt during February

all originated about 30 km be·neath Kilauea caldera on February 7 0

The largest earthquake of the month was- not felto It occurred beneath

the sea about 35 krn southeast of Cape Kumukahi on February 100

Eight earthquakes were reported felt during Marchi and all but

one of them originated beneath Kilaueao The one exception occurred

at a depth of about 15 km beneath Puu Waawaa on March 9 0 It has a

magnitude of about 400 and was felt over half of the islando The two

largest earthquakes of the month both originated about 30 km beneath

Halemaurnau and were felt over the 'entire island o The first, with a

~agnitude of 4 0 4. occurred on March 23; the second. with a magnitude

of 4.5. occurred on March 300

Tilting of the ground around Kilauea caldera

Tilting of the ground around the summit of Kilauea is monitored

daily by a short-base water-tube tiltrneter in Uwekahuna vault (table I),

and at irregular intervals it is measured on a regional scale by means

of a network of field tilt-bases and a portable water-tube tiltmeter

3
5 KM

.....-...

RATE 5 X 10-6 RADIANS / MONTH

Figure l.--Tilting of the ground around Kilauea caldera. October 8, 1961,

to January 5. 1962. The vector depicting tilting at a given tilt

base points in the direction of maximum relative subsidence and has

a length proportional to the rate of tilting during the measurement

interval. Closed circles represent field tilt ba$es; open circles,

short-base water-tube tiltmeters.

4
KM

TILTING RATE 2.5 X 106 RADIANS I MONTH

2000

0° °0

f>.Q

cr 0

" Q 0

0°

~Q Q

Kap

•

eKN

Figure 2.--Tilting of the ground around Kilauea caldera. January 5. 1962.

to March 29. 1962. The vector depicting tilting at a given tilt base

points in the direction of maximum relative subsidence and has a

length proportional to the rate of tilting during the measurement

interval. The area covered by this diagram has been increased to

include the new tilt base at Kapapala (Kap).

5
Table l.--Tilt coordinates at Uwekahuna vault, January, February, anp

,~r.ch, 1962

Date N-S E-W Date

.'

N-S E-W -..

.. . '. I'

Jan. 7 411 553 Feb~ 18 423 543

14 418 551 25 426 537

21 418 552 Mar. 4 427 536

28 419 550 11 \~.~ 438 537

Feb. 4 419 546 18 429 535

11 421 546 25 429 536

6
(table 2). The attitude of the ground surface at each tilt base is

reported in terms of north-south and'east-west-tilt coordinates. Both

coordinates at each station were arbitrarily set equal to 500 when

measurements at that station were begun. Increasing tilt coordinates

correspond to northward and eastward tilting of the earth's surface.

that is. to a relative subsidence toward the 'north and east. A I-unit

change in coordinate corresponds to a tilting of 1 microradian (1 mm

per km) in the direction indicated.

Seismic summary

Events recorded by the U.S. Geological 'Survey seismograph network

in Hawaii fall into two categories: local earthquakes and tremor

originating in the region of the Hawaiian Islands, usually within 100

km of at least one seismograph, and distant earthquakes originating

farther than 3,000 km from Hawaii. As an index of seismic activity

at Hawaiian volcanoes. daily counts of earthquakes and minutes of

tremor recorded by seismographs in Hawaii are listed in table 3. The

earthquakes are separated into groups on the basis of region of origin

as determined by analysis of records obtained daily at the Observatory

(U. M. A. D, N). Earthquakes of magnitude 2.5 or greater are

generally sufficiently well recorded to be located with greater

precision; they are listed individually in table 4. Data on identifiable phases from distant earthquakes are listed in table 5.

Locations of the seismograph stations are shown on'figure 3. and

essential data on the stations are given in table 6.

7
Table 26--Ti1t coordinates and changes at bases around Kilauea caldera (see figs. 

Tilt base Date Tilt coordinates Rate (10-6 rad/mo) Da

(location) (1962) and direction of la

tilting since rea

N-S E-W last reading (19

Uwekahuna

(19°25.5' N. t 155°17 .4' W.) Jan. 2 394.1 531.1 17.3 No 44° W" Oc

Tree Molds

(19°26.3' N., 155°17.3' W.) 4 412.9 519.4 8.7 N. 22° Wo 

Sand Spit

(19°24.1' N., 155°16.8' W.) 9 844.1 693.4 2.0 N. 29° 

Kalihipaa

(19°21.4' N., 155°15 0 3' Wit) 5 583.4 42203 1.1 S .. 18° 

Keamoku

(190 25.1' No, 155°19.0' W.) 5 447.0 651!tO 9.0 N. 82° W" 

Kamokukolau

(19°22.7 1 N•• W. ) 3 733.6 489 0 0 14.4- s. 29° E. 

Kipuka Nene

(19° 19.4' No, 155°16.7' W. ) 4 516.7 494t!4 0.4 Nt' 66° Wb 

Hilina Pali

(19°18.2' N • 155°18(>6' Wo) 8 513.7 100 28° Ee 

Mehana

(19°2602' N<", 155°14 0 3' W ) 2 525c7 83° E¢ 

Kapapala Ranch

(19°20.5' Nt\ I 155°23.8' We) 9 501.4.1 01'8 N.. 55° Efl 
cD

Table 2.--Tilt coordinates and changes at bases (see figs 0 

Tilt base Date Tilt coordinates Rate_(10-6 rad/mo) Da

(location) (1962) and direction of 

tilting since rea

N-S E-W last reading (19

Uwekahuna

(19°25.5' N· t 155°17.4' W. ) Mar. 27 409.2 521.3 6.4 33° W . Jan 

Tree Molds

(19°26.3' N. t 155°17.3' W. ) 27 420.5 517.5 2.8 N. 14° We: 

Sand Spit

(19°24.1' N•• 155°16.8' W. ) 29 849.2 701.9 3.7 Ne 59° Ec 

Kalihipaa

(19°21 .. 4' N.. t 155°15.3' W0) 28 583.2 422.1 Oel SQ 56° We 

Keamoku

(19°25.1' N. t 155°1900' W. ) 29 453.8 637.6 5_4 Ne 63° We> 

Kamokukolau

(19°22.7' N. t vi. ) 28 717.6 499 0 6 6.8 5&\ 34° Ee 

Kipuka Nene

(19°19.4' N· t 155°16.7' W. ) Apr. 5 516.4 494 e 6 Oel So 34° E{l 

Hilina Pali

(19°18.2' N t WCt) 4 515.0 498e2 Dco6 N. 50° Wf) 

Mehana

No, 155°14 0 3' W0 ) ...--...-.-- .......---- _ ..at _ _=a._lSIa __.__

Kapapala Ranch

(19°20 0 5' No, 155°23 0 8' Wo ) Mal'o 30 500 0 0 Due south 
10 1& 20 25 1<1I0"'lllr.

20'

Cap.

,Kumullahl

Contour interval 1,000 feet

Dotum i. mlon ItO l.v.1

Topoorophy by US G,oloOlcol Survly

EXPLANATION

• Selsmo9raph Station

• Town or locality

10 1& Mil..

."O""tai~

Pahoa • "'-...

1.0t4E.

Laupahoehoe -+- _

r-----------------------t---------_ .,.

Figure 3.--Map of the island of Hawaii showing seismograph stations

operated by the Geological Survey and localities mentioned in the

text. Epicenters of local earthquakes are given in terms of

geographic coordinates, which are indicated at the edges of the

map.

10
Table 3.--Numbersof earth uakes and minutes of tremor recorded on

caldera U, M, A, D, and N

Table 3, su

ra hs around Kilau

-

[Tremor is separated into three categories--(l) deep, (2) intermediate, and (3) shallow--on 

basis of relative amplitudes on seismographs in the summit region. Unless otherwise sta

tremor is presumed to be associated with movement of magma within the central complex o

Halemaumau rock slides (4) are detected by the characteristic record they produce on the N

seismograph.

Earthquake categories are: 5. shallow earthquakes in the Kilauea caldera region;

6, shallow earthquakes along the SW. rift zone of Kilauea and 

adjacent portion of the Kaoiki fault system;

7, earthquakes along the eastern half of Kilauea's east rift z

8, earthquakes from a source about 30 km beneath Halemaumau;

9, shallow earthquakes along the Kalapana Trail (SE. flank of 

10 to 15 km W. of Kalapana);

10, earthquakes from other regions: Kona, Mauna Kea, etc. 

Date Tremor (in minutes) Halemaumau Kilauea SW. E. 30 Kalapana O

(1962) slides caldera rift rift km Trail

Deep Intermediate Shallow

1 2 3 4 5 6 7 8 9 

Jan. 1 _....,.. ...._-..--...... -.-_........ 1 82 10 9 .. ..- ...._

2 ..- 5 .. .._---- -........_---- 88 5 ---- 18 ..---..- 1

3 ...._-_..--......- .. 8 76 20 3 9 _.. 

4 ---.. 3 --...... 8 118 5 4 2 - ..-_....-- --..

5 .. ------...._--_.. .-, ------- .._--..... 27 10 13 7 -._-------- --_

6 ----

...

-

.... ..

--- ....

__

.. -....

__

......._- 30 6 8 10 -..--..- .... 2

7 ---- ------------

.. ---.--_..-. ......-..--.. .. 53 6 3 2 -------- ---

8 - ..-.. ------------- .. 1 41 3 ----.. 5 ..-----..-- _.._

9 ---- ..... .. --.. ..-.. _....__........ 33 6 1 7 ----.......- ..

10 ---- ...._------_.... _..........- ..-....... 40 4 1 6 _...-......-- 1

11 .._....

_

.. ..

- 5 3 41 5 3 7 -----_-... 

12 ..-.... ----_... .._-.. -. 2 61 15 ------ 2 -------- --,..
13

4 ....__....

-

.. ..- _..__-._-

-

.... .. 51 5 1 3 - ....-........ 1 

14 3 9 1 95 7 6 ........ ..- 3

15 ....... ....---- 6

----------

81 7 3 ..__.. 3

16 ..... ... .. --------- ---._-..---..- 35 10 3 ------..-. ..-

17

..- ...... 70 8 6 .. 1

18 3 ........__.. ..-_....-_......

4 3 2 ............ ..,.. 3 

19 .. ..----_..- 8 ........--_....- 44

4 2 2 ------.._- 1 

20 .._--_...._---- 2 ........------ 31 8 2 ---..........

21 .._---------..-- ------- 1 22 8 8 _...------- ---

22 7 .. .... ..._........ ·36

4 2 --_.. .. 1 

23 ... .......-_.. ...._- -.-.......--.,-.... 23 10 1 4 -------- 1 

24 5 ------- 2 30 8 1 17 ..............-

25 5 -...._-.. ......--_..- .... 45 5 2 3 ......_---- -_

26 12 ------- ----_.._--- 22 14 16 .........

-

..

--

27

2 -----...- --......------- 27 11

4 -------- --

28 .-....----..-_.... ....----- -.. .. ....- 33 8 2 6 -------- 1 

29 ---..--....-_-... 7 ---------- 31 5 1 5 .. 

30 ....-...-- -.. .. ..

----------

29 6 1 3 ...._-_.. .. .. 

31 -----..--------- ------_.. ..--- 33 22 3 .. 1

Feb. 1 15

------------

.._... 2 25 5 4 2 .... .. .. 1 

- 2 ------- - ....._-..---_.. 60 8 4

4 -------- 1 

3

------------ ..- 1 47 9 7 -------- 1 

4 -----.-----..-.. ------- ---------- 51 10 12

_

....---_....

5 4 ------..

----------

60 13 1 5 --------.... ---

6 2 ------- .._----......- 74 18 1 13 -------- 6

7 ....

-

....

....

_

.....

--

..

40 8 1 70 ...._-----

_

..

8

------------

_

....,..--- ---------- 35 14 3 3 _.. 1 

9 _.. .. 3 ---------_.. 30 7 3 -------- -....

10 2 ..-._---- 1 58 3 2

4 -------- 3

11 ....__...

--

.... .. ------- 2 59 7 7 -------- 1 

12 3 ........-. ..- 3 40 10 1 3 -------- 

13 6 ...._--..- 7 45 6 1 3 --............,

14 ....._--------- .. ..-.. 5 44 16 1 3 --------- ---

15 -.,....-----..--- ... ....--- .._.._....._--- 40 14

3 2 --

.. 3 

16

------------

..---_.. 1 25 8 5 -_..._------ 2

17 ....

_

..--._-....

-

_-._-----

..

52 10 1 _-._------ 2

18

..

-----

_

... ..

..--.-.... 27 13 3 .. ..-....-- .._

19 .. ....--_..-.. --------- .. ...._-_.. 33 17 1 3 ......--- 1 

20

-

..

52 7 1 3 --..-..--.. 1 

21

_

.._-..-_.. .... .._....

_

.. 3 70 8 1 4 .... .. .. ---

22 .. .-. .... ........- -------- .._--------- 38 11 2
23 --.. ..--.. ....... .... ---.._----.--_.. 55 11

2 9 1 1 

24

..

------- -------

.. --_-... 70 12 3 ..--_-.

25 ..----- .. ---..--_-.-... 65 8 2 15 1 2

26 .. .._..__..._....... ------- ......_---..-- 66 5 1 5 3

27 .. .._.._--_.. ------- 1 66 13

4 3 ..-_

28

_

.._-_.. .... 20 .. ....-.. 70 8 1 6 1 1 

Mar. 1 .. .. .. -------

2 73 15 5 4 ....._--...... .._

2 ..------------ ......----.. _.. .._..--. 100 9 2 7 1 2 

3 --.._--........_- ------- 3 67 13 3 23 5 

4 --_.---_-...-....

_

............ 1 82 20

2

4

4

_

...

5 --_....__..__.... -----..--

----------

81 16 3 3 2 1 

6 ----.._---.-,..--_.. --..-.. ..-... .. 150 9 2 7 .....

_

....

_

..-

7 .._..------ 5 .._---.. 155 13 1 6 2

8 35 ------------- ....----- -._-_....... ..- 96 21 6 4 1 

9 ......--......-.._- ..-.. .._- ..-.._---...... 95 35 3 7 6 2 

10 ..__..-..-"--_.. ....

_

.. .. -_..... ..-._-- 103 33 1 1 3 1 

11 ----.--------.. ....-........-_.. 96 26 1 12 ..

12 6 1 70 11

2 1 1

13 _.-.. ....---.. .. -. .....

-

... 70 5 3 1 5

14

-

.. ....

----- -

..-.. 3 57 8 5 1

15 -----...-, ..----- .. 1 64 10 1 1

16 ....__....-.-.._-- ---_.. ---..-----..-..-- 60 7 2 2 -------- .. 

17 .._------.._.... ....... .. 1 50 14 5 1 

18 39 --....-..---..-- --..-.._.. ..- .......---...- 55 9 5 3 ..-... --

19 ----_....-........ .... ....__....... 51 6 9 _..

I-' 20 8 65 9 2 8 5 _...

....., .._.-.....-.._- .._-

21 - ..........

_

..-_.... -_..- ...... ..- 62 11

2 25

2 

22 ----_....----- ------- 1 58 12

2 5 2

23 .... ..-..._..- -.. ..- ..--_.. 50 5 2 113 ...------- 1 

24 -------------

_

.._.._.. ---------- 72 27 1 24 --_..---.-.

2 

25 ..------...._---.. - ..---.... .........__ ...-..- 74 30 6 17 3 3

26 ------------ ---_..-- ..

..

59 7 2 5 3 --

27 ---_...._----- ..........-- .... ..._--- 61 30

2 14 1

28 .... .... ----_.... -.-.............-- 120 17 8 8 ----_..--- 1

29

.....

....

_

.._-.. ...._-..- 146 24 3 4 ----....._-- ....

30 --.. .... .... --_..-. ...- ....-... 85 14 3 20 -....__....-

31 ...-..-.......-.._..- 3 ----..-....,.. 160 19

4 10 -----..--- 
Table 4.--Local earth uakes recorded b

Januarx, Fe

hs of the U.S. Geolo ical Surve

March. 1962

[Except for smaller earthquakes of special interest, only earthquakes with magnitudes of 2 

greater are listed. Origin time is Hawaiian standard.

In the following list some origin times are followed only by "KM 30" and a statement of m

These are all members of a 'continuing family of quakes noted. in other summaries $ They 

prominent in this quarter and so are listed in this abbreviated fashion. The best mean 

for this group is beneath Halemaumau at a depth of 30 km.(19024 3 1' No. ISSol701' W.)o

In the Chronological summary another recurrent earthquake type was described 0 The table 

events in this quarter has been expanded to include earthquakes of this type t which are 

in column 9 (table 3). In the following list, origin times_of these.. quakes are followe

"KT" (Ka1apana Trail) 0 The tentative epicenter for these.quakes.is 19°20' Nei lSS00S' 

location is remote from habitation and traffic.. and these quakes, aregeneral1y not felt 

Because they originate at very shallow depths and far from our. seismometer

these quakes are poorly recorded, and the epicenter given above is only approximate] I\)

Date Time Magnitude Epicenter Re

(1962)

h m s Lato No Long. W. Description - - -

Jan. 3 11 51 41 0 8 301 19°27 0 0' 15S011 0 7' 12 km ENEo of Uwekahuna 2S km 

.

"

seismograph. Felt at

3 18 16 4106 3 0 1 19°26 0 6' lSS012.S' 10 km ENE. of Uwekahuna DO

seismograph. Felt at

Volcano 0

4 06 39 S501 20 8 190560S' ISS,oOSt'S' 12 km NNE 0 of Pepeekeo- ca 121)S k

S 01 23 3S04 2 0 8 19°18 0 8' 1SS007.0' 11 krn NE o of Apua 3 krn d
Table 4.--Local earthquakes recorded._ by seismographs. of the U0 s. Geologi cal. Survey.

January' February a-and' March, - --

Date Time Magnitude Epicenter Re

(1962)

h m s Lat. N. Long • .W. Des'cription

- - _.

.-'

Jan. 5 11 57 04.6 : 3.0 19°23.5' ,155°23".2' 7 km N. of Desert 3 km d

seismograph.

6 05 36 46.3 2.7 KM 30.

1 01 40 55 0 1 2.3 19°12 0 1' 155°13 0 8' 7 km SW. of Apua Point-....... :_ 15 km 

7 02 57 53 0 4 4 0 0 19°24.5' 155°03 0 1' 14 km SW. of Pahoao Felt 5 km d

throughout the is1ando;

7 09 17 27 0 6 2,,7 19°31.1' 155°3600' 5 kmNNW o of Mokuaweoweo 3 km d

caldera 0

7 12 29 29 0 4 21»9 KM

8 15 18 17 0 7 2 0 5 KM 30a

9 17 44 22 0 4 3 0 0 19°13.2' 155°32.8' 8 -km WNW o of Paha1a--c....--= 12 0 5 k

10 02 57 50 0 8 3 0 0 KM 30 4

10 16 59 52 0 1 2 0 9 21° 1600' 155°25 0 0' 125 km NE of Upolu Point- .----do14 08 10 49 0 9 2 0 9 19°30 0 0' 155°42 0 2' 22 km ESE o of 3 km d

17 18 58 45 0 5 2 0 3 19°20 0 2' ·155°13C)3' 7 kmSE o of Ahua 8 km d

seismographo
Table 4.--Local earth uakes recorded b

Januarr,

ra hs. of the U. S. Geolo ical._ Surve

March,

Date Time Magnitude Epicenter Re

(1962) --

b -m s Lat. N•. Long. W,. .Description

- - -

--

Jan. 18 17 07 06.5 2.4 KM 30.

..

20 03 01 20.3 2.6 155°42 0 9' 23 km E. of Kealakekua--- 3 km d

21 04 05 36.5 3.1 19°23.0' 155°02.0' 7 km NW, of 50 km 

21 16 31 08.9 2.8 KM 30. Felt at Volcano.

.-

25 07 55 4509 2.3 19°06.2' 155°45.5' 20 km WNW. of Naa1ehu---- 8 km d

26 14 04 23 e 2 3.3 i9015.8' 155°12.8' 2 km We .of Apua Pointe 15 km 

Felt from Hilo to

Volcano.

28 08 21 51 0 5 3.0 19°35.8' 155°49.8' 13 km NEe of Kealakekua-- 3 km d

Feb. 1 19 30 08.3 2.5 19°3100' 154°3.5.0' 25 km Eo of Cape 12 0 5 k

Kumukahi.

3 23 41 25.7 2.0 19°22.8' 155°26.2' 8 km NW. of Desert 8 km d

seismograph 0

4 07 33 26 0 2 300 19°42 0 2' 155°56 0 0' 21 km NNW:) of Kea1akekua- 8 km"'d

6 19 27 2601 202 19°20 0 7' 155°04 0 3' 22 krn SWo of 5 km d

6 20 49 42 0 1 208 190 22 0 1 v 154°51 0 7' 17 km SEo of PahoacolO "''''--- 8 km d
hs of. the U. S. Geolo i_cal_ s.urve

-_......._-_........ ..'-_... Table 4.--Loca1 _____ __ ......._....... __- ....--..----...

"\

Date Time Magnitude Epicenter Re

(1962)

h m s Lat. N. Lo.ng. W. Description - - ._- " ..

..

19° 50.4-' 155°34.4'

-

.

Feb. 6 22 49 0000 2.8 30 km SSW. of Honokaa---- :3 km d

7 01 30 25.2 2.9 KM 30.

7 06 09 20.3 2.9 KM 30.

7 10 06 . 35.2 3.5 KM 30. Felt at Volcano.

7 10 10 43.0 3.5 KM 30. Felt at Volcano.

7 10 49 18.3 2.7 KM 30.

7 11 13 40.9 2.4 KM 30.

7 11 57 07.4 3.1 KM 30.

7 15 26 39.3 2.9 KM 30. Felt at Volcano.7 15 29 45 0 0 2.5 KM 30.

7 20 39 46 0 5 2.7 KM 30 0

8 16 15 51.8 20 5 19°40 0 0' 156°32 0 0' 50 km WSW o of Keahole 8 km d

Point 0

8 16 34 44 0 6 2 0 5' 19°10 0 1' 155°22 0 2' 13 km ESEc of Paha1aCD ----- 3 km d

10 16 00 46 0 6 4 0 0 19°18.2' 154°33 0 0' 35 km SEo of Cape Kumukahi Doo
ical._ .Surv

.-

Date Time Magnitude Epicenter R

(1962):

h Lat. N. Long. W.

-

.

m s

- - -

Feb 0 11 0.6 04 32 0 0 300 19°42.7' 156°05.0' 12 km NW o of Kailua------ 8 km d

11 l4 21 52 0 a 2.8 19°31.3' 155°51.4' 7 km ENEo of Kea1akekua coo - 3 km d

14 OQ 58 25 0 2 2 0 5 19°35.2' 155°49.0' 13 km NE.of Do o

14 06 31 5500 2.3 19°24.5' 12 km SW e of Mauna Loa 5 km d

seismograph.

15 09 0'1 21 0 7 2 0 9 19°3106:' 155°501)5' 8 km ENEo of Kealakekua-- 3 km d

15 20 3.3 44 0 2 2 0 6 20°0501' 155°50.1' 5 km of 1205 k

15 22 40 44 0 3 2.7 20°01 0 5' 155°5000' 2 km So of Kawaihae------ 8 km d

16 07 52 27 0 5 2e7 19°52 0 2' 156°00.0' 17 km NE o of Keahole 1205 k

Point 0

17 02 47 34.9 208 KM 30 0

23 05 01 54.8 207 KM 300

23 05 51 18 0 6 20 9 19°12 0 7' 1550 40 0 7 Y 19 km NW o of Naa1ehu-c::.... c:.- 8 km d

23 16 44 4801 200 19°25 0 7' 1550 2901 v 13 km SW o of Mauna Loa DOG

seismograph 0
Table 4.--Local earth uakes recorded b

J-an·uary·, Fe ruary,

ical.Surve

Date Time Magnitude Epicenter Rem

h rn s Lat. N. Long. W. Description - - -

Feb 0 23 19 03 5903 2.8 21°09.0' 155°38.0' 102 km NNE. of Upolu Point 1205 k

25 12 54 33.0 3.2 19°06.9' 155°37.8' 7 km NW o of Naa1ehu-------

25 18 55 10 0 4 2.7 KTo

26 22 24 38.7 3.,0 KT.

Mar o 3 02 29 28.0 2.0 19°06.5' 155°21.4' 17 km SEe of Pahala------- 15 km 

4 01 32 13 0 7 20 5 KT.

4 03 37 58.3 2 0 7 19°39.2' 154°5601' 18 km NNE o of Pahoa-----....- 'Do 

6 02 50 33.0 2 0 7 19°3200' 155°5100' 7 km ENEo of Kealakekua--- 3 km d

8 21 14 43.1 2 0 6 19°09 0 6' 155°3707' 11 km NW o of Naalehu------ 1205 k

9 21 39 02 0 2 3 0 3 KT o Felt at Volcano.

9 23 46 19 0 0 4 0 0 19°47.8' 155°50 0 3' 2 km NNE o of Puu Waawaao 15 km 

Felt in half the islando

10 00 24 38 0 0 2 0 7 KT o

10 00 34 56 0 9 2 Q 3 KT o

10 21 37 04 0 4 2 0 3 19°32 0 7' 1.55°07 0 9' 3 km SW o of Mountain View- 3 km d
Table 4.--Loca1 earth uakes recorded b

JanuapY. Fe ruary,

ical.. Surv

Date Time Magnitude Epicenter Re

(1962)

h m 5 Lat. N. Lo.ng. W. Description - - -

Mar. 12 05 17 06.0 2.7 KM 30.

15 05 23 45.1 2.7 KT.

16 23 28 09.9 2.7 19°14.1' 155°37.2' 19 km NNW. of Naalehu---... 3 km d

18 00 33 45.0 2.4 19°46.0' 156°09.0' 11 km WNW, of Keaho1e At sha

Point.

18 04 13 13.7 2.7 KT o

20 05 55 10 0 0 2.5 KM 30 0

21 10 04 28.2 2.9 KT.

21 12 26 52.0 2.7 18°55.2' 155°27 0 2' 22 km SEt of Naa1ehu------ 8 km d

22 09 30 12.3 2.8 KT o

22 16. 35 42.1 3 0 4 19°14 0 3' 154°57.8' 13 km SSE. of Kalapanao 45 km 

Felt at Vo·lcanoo

23 14 56 46.6 KM 30 0 Felt throughout

the island &

23 18 47 03 0 8 3 0 0 KM 30 0 Felt at Vo1canoo

24 04 16 34 0 8 20 0 18°57 0 2v 155°15 0 6' 38 km ESE1 of Naalehu---- 12 0 5 k
Table 4.--Local earth uakes recorded.b

. " January! Fe ruary I 196

ical.. Surve

!

Date Time Magnitude Epicenter Re

(1962

h m s Lat. N. Lo.ng. w. Des·cripti·on. .. ... - - . . ..

.

Mar. 24 11 13 27.4 2.5 KM 30 0

24 19 47 53 0 3 2.9 KM 30. Felt at Volcano 0

-

27 15 36 10.2 2.5 KT,28 15 52 40 0 0 3 G 4 19°16 e 9' 155°13 0 4' 5 km NW. of Apua Pointo 5 km d

Felt at Volcano 0

30 06: 42 16 0 6 2.3 19°21.7' 155°25 0 7' 5 km NWo of Desert Do 

seisrnographo

30 18 15 55 0 1 4 0 5 KM 30. Felt throughout

the islando
Table 5.--Distant'ea~thsuakes

[Times are reported in Greenwich Civil Time which is 10 hours faster

than Hawaiian Standard Time. A "e" following the time of P indicates compressional first motion; a "d" indicates dilatational

first motion. Station symbols, locations. and instrumentation are

presented in Summary 25. Magnitudes calculated from the Hawaii

seismograms are followed by (HVO). Location of epicenter, origin

times, and focal depths. and magnitudes reported by other institutions are taken from "Preliminary Determination of Epicenters"

published by the U.S. Coast and Geodetic Survey]

Jan. 1 ' 'Jan. 4--Continued

M Z eP 02:48:44.3 c U Z eP 04:46:05.2 d

A Z eP 02:48:44.0 d Pa Z eP 04:46:06.3 c

D Z eP 02:48:45.2 d Hi Z iP 04:46:05.2 d

U Z eP 02:48:45.7 d Na Z eP 04:46:03.8 d

Magnitude 5.7 (HVO) • Ka Z eP 04:46:01.5 d

C&GS card 1-62: Ha Z eP 04:45:56.2 c

52.3° N., 177.9° E.

02:41:06.0 U PEE eS 04:55:00

Rat Islands, Aleutian Islands.

h about 26 km. U PEN eG 05:01:24

Jan. 1 U PEZ iR 05:04:00

M Z eP 23:47:48.0 c Magnitude 6.5 (HVO) •

N Z eP 23:47:48.3 c C&GS card 1-62:

33.9° N., 135.2° Eo

U Z eP 23:47:50.3 c 04:35:42.6.

Near Shikoku, Japan.

U PEZ eR 23:58:02 h about 56 km.

Magnitude 6.0 (Berk).

C&GS card 1-62:

52.4° N., 177.7° E. Jan. 5

23:40:20.3.

Rat Islands, A1eutain Islands. U PEZ eP 00:31:18

h about 27 km.

U PEZ eS 00:37:38

Jan. 4

U PEN eL 00:40:33

A Z eP 04:46:05.2 c

Magnitude 6.7 (HVO) •

N Z eP 04:46:03.8 c

D Z eP 04:46:05.2 c

20
Table 5.--Distant"ea~thsuakes--Continued

, 'Jan~ 9

M Z eP 12:52:17.1 d

A Z eP 12:52:17.7 d

D Z eP 12:52:17.4 d

U PEZ eScS 13:01:47

U PEZ eR 13:04:53

Off coast of O~egon.

No preliminary C&GS listing.

C&GS card 3-62:

44.3° N., 128.8° W.

06:27:45.2.

Off coast of Oregon.

h about 25 km.

Tmax 07 : 08 : 00

Tmax 07:08:24

Tmax 07:08:28

Tmax 06:46:31

Tmax 06:46:21

~agnitude 6.2 (HVO).

C&GS card 2-62:

42,90 N., 144.8° E.

12:40:49.3.

Near coast of Hokkaido, Japan.

h about 78 krn.

N Z

Hi Z

N Z

Pa Z

Pa Z

Jan 10

"Jan~"lO

C&GS card 4-62:

15.5° S., 177.7° W,

00:23:32.1.

Fiji Islands.

h about 24 km.

Magnitude 6.25 (Pas), 6,25 t6"

6.5 (Berk).

C&GS card 1-62:

18.50 N., 70.5° W.

01:00:24.2.

Near south coast of Dominican

Republic.

h about 63 km.

Magnitude 7.0 to 7.5 (Pas),

6.25 to 6.5 (Berk). 6.5 (Pal),

I

21

Jan. 5

U PEZ eL 08:24:10.

C&GS card 3-62:

15.5° S., 172.5° W.

08:08:07.5.

Tonga Islands region.

h about 60 km.

Jan. 8

M Z eP 01:12:27.5 c

A Z eP 01:12:26.2 c

D Z eP 01:12:29.0 c

Pa Z eP 01:12:26.6 d

Hi Z eP 01:12:27.9 c

Ka Z eP 01:12:27.8 c

U PEN e 01:34:06

U PEZ eR 01:36:54

Magnitude 6.5 (,HVO) •

Jan. 5--Continued
Table 5.--Distant·. ~~~~~$~~~~s~~Continued

Jan. 10 Jan~ 10

N Z Tmax 07:09:40 N Z Tmax 07:48:45

Pa Z Tmax 07:09:13 Pa Z Tmax 07:48:40

Ha Z Tmax 07:09:19 Ha Z Tmax 07:48:14

C&GS card 5-62: Off coast of O~egon.

44.3° N•• 128.7° W.

06:28:40.5. No preliminary C&GS listing.

Off coast of Oregon.

h about 61 km. Jan~ 11

Magnitude 4.75 (Pal).

U PEN ePP 06:57:49

Jan. 10

U PEZ eR 07:05:53

N Z Tmax 07:14:28

Ha Z Tmax 07:33:11

Pa Z Tmax 07:14:31

C&GS card 9-62:

Hi Z Tmax 07:14:20 51.9° N•• 179.3° W.

06:49:07.6.

Ha Z Tmax 07:14:07 Andreanof Islands. Aleutian

Islands.

C&GS card 3-62: h about 60 km.

44.3° N,. 128.8° W.

06:33:56.5. Jan. 16

Off coast of O~egon.

h about 25 km. M Z eP 11:45:07,5 c

Jan. 10 A Z eP 11:45:07.0 c

N Z Tmax 07:16:47 D Z eP 11:45:05.5 c

Pa Z Tmax 07:16:25 Pa Z eP 11:45:10.7 d

Hi Z Tmax 07:16:01 Hi Z eP 11:45:11.9 d

Ha Z Tmax 07:16:07 Ka Z eP 11:45:10.7 d

Off coast of Oregon. Ha Z eP 11:45:29.9 c

No preliminary C&GS listing. U PEZ iP 11 :45 :08 c

U PEZ is 11:52:52

U PEN eG 11:59:10

22
Table S.--Distant earthquakes--Continued

Jan. 16--Continued

Magnitude 6.0 (HVO).

C&GS card 6-62:

30.5° S., 177.9° W.

11:35:41.3.

Kermadec Islands.

h about 39 km.

Magnitude 6.5 (Pas).

, .Jart .30--Continued

C&GS card 9-62:

12.7° N. 87.7° W.

08:34:26.8.

Near coast of Nicaragua.

h about 101 km.

, .Jan •. 30

M Z eP 15:32:12.5 d

A Z eP 15:32:13.6 d

D Z eP 15:32:12.5 d

Hi Z eP 15:32:15.5 d

C&GS card 8-62:

20 •7° N.. 144. 5° E.

15:22:49.4.

Mariana Islands region.

h about 187 km.

. 'reb. 2

Single 'acoustic pulse - 70 sec

·period.

eGGS card 9-62:

49.9° N., 78.2° E.

07:59:58.5.

l<azakh. U.S.S.R.

h about 0 km.

Feb. 3

M Z eP 00:49:02.3 c

A Z eP 00:49:02.8 c

D Z eP 00:49:02.9 c

N Z eP 00:49:03.2 c

U Z eP 00:49:06.4 c

23

Jan. 28

M Z eP 05:47:43.1 d

A Z eP 05:47:43.0 d

D Z eP 05:41:41.6 d

N Z eP 05:47:43.1 d

Hi Z eP 05:47:44.4 d

Ka Z eP 05:47:46.5 c

U PEZ eR 05:58:17

C&GS card 11-62:

17.2° S., 172.00 W.

05:40:08.2.

Tonga Islands.

h about 25 km.

Magnitude 6.25 (Pas) •

Jan. 30

M Z eP 08:45:01.8 d

A Z iP 08:45:00.6 d

D Z eP 08:45:00.8 d

Pa Z eP 08:44:59.4 d

Hi Z eP 08:44:59.1 d

u PEN e 21:26:00
Table 5.--Distant"earthsuakes--Continued

Feb. 3--Continued Feb. 5--Continued

Hi Z eP 00:49:07.3 c C&GS card 9-62:

35.9° N•• 138.8° E.

Na Z eP 00:49:02.6 c 22:55:49.6.

Central Honshu.

U PEZ is 00:58:04 h about 151 km.

U PEZ iR 01:09:43 Feb~ 8

U PEN iSSS 01:05:47 M Z iP 12:00:01.0 d

Magnitude 6.5 (HVO). A Z eP 12:00:00.1 d

C&GS card 10-62: U Z eP 12:00:00.3 d

1.20 S., 137.80 E.

00:37:53.6. Pa Z eP 12:00:03 0 5 d

North of New Guinea.

h about 17 km. Hi Z eP 12:00:03.6 d

Feb. 4 Na Z eP 11:59:58.8 d

M Z eP 03:07:28.8 d Ka Z iP 12:00:07.0 d

A Z eP 03:07:28.4 d Ha Z eP 12:00:07.1 d

D Z eP 03:07:28.4 d U PEZ eR 12:19:10

N Z eP 03:07:29.1 d U PEN iG 12:16:18

C&GS card 11-62: ~agnitude 6.1 (HVO) •

4.60 S., 119.00 E.

02:54:42.1. eGGS card 14-62:

Celebes. 3.2 0 S., 141.3 0 E.

h about 89 km. 11:49:13.9.

New Guinea.

Feb, 5 h about 87 km.

M Z eP 23:05:42.3 d . ·reb~ 9 F

A Z eP 23:05:43.1 d M Z iF 22:03:29.8 c

D Z eP 23:05:42.6 d A Z iP 22:03:29.8 c

Pa Z eP 23:0-5:43.9 c D Z eP 22:03:28.4 c

N Z iP 22:03:29.6 c

24
Table 5.--Distant 'ea:rths"uakes--Continued l , .. , ...•....•.

Feb. 9--Continued Feb. 'll--Continued

U Z iP 22:03:29.3 c Hi Z ePcP 19:05:34.2

C&GS card 11-62: Na Z iP 19:04:58.5 c

0.60 N" 123.9° E.

21:51:13.2. Ha Z iF 19:05:08.4 c

Celebes.

h about 50 'km. Ha Z iPcP 19:05:35.1

Feb. 11 U PEZ eP 19:05:00.9 c

M Z iP 02:52:03.5 c U PEZ iG 19:18:46

A Z iP 02:52:05.0 c U PEN is 19:12:52

D Z eP 02:52:03.5 c M.agnitude 6 •L~ (HVO) 0

Pa Z iP 02:52:05.3 c C&GS card 11-62:

4.5 0 S •• 153.5° E.

Ha Z iP 02:51:55.7 c 18:55:32.0.

New Ireland ~egion.

Na Z iP 02:52:03.5 c h about 100 km.

Magnitude 6 (Berk).

C&GS card 11-62:

29.60 N., 139.00 E. Feb. 14

02:42:36.1.

South of Honshu, Japan. U PEZ iP 06:49:35 d

h about 400 km.

Magnitude 6.25 (Pas) • U PEZ iPP 06:53:33

Feb. 11 U PEZ iPPP 06:55:38

M Z iP 19:05:00.7 d U PEZ iPS 07:02:09

M Z ePcP 19:05:29.7 U PEZ iSS 07:07:22

A Z iP 19:05:00.7 d U FEZ iR 07:20:03

A Z ePcP 19:05:33.4 U PEE is 07:00:05

D Z eP 19:05:00.0 d U PEE iSSS 07:11:23

D Z ePcP 19:05:30.9 U PEN iL 07:15:09

Pa Z eP 19:05:03.1 c U PEN iG 07:16:03

Hi Z iP 19:05:03.8 c M Z Tmax 08:36:13

25
Table 5o--Distant earth~uakes--Continued

Feb. 14--Continued

A Z Tmax 08:35:58

D Z Tmax 08:36:02

N Z Tmax 08:36:04

U Z Tmax 08:36:06

Pa Z Tmax 08:35:42

Na Z Tmax 08:35:56

Magnitude 7.5 (HVO)o

C&GS card 11-62:

38.1° S•• 73.1° W.

06:36:01 0 3.

Near coast of Chile.

h about 44 km.

Magnitude 7.25 (Pas), 7.5

(Berk) •

Feb. 18

M Z iP 17:37:14.1 c

A Z iP 17:37:14.7 c

N Z iP 17:37:14.5 c

Pa Z eP 17:37:10.1 c

Ka Z eP 17:37:15.6 c

U PEZ eR 18:01:44

Magnitude 6.1 (HVO).

C&GS card 14-62:

8.1° N., 74.6° W.

17:25:17.3.

Northern Colombia

h about 70 krn.

Feb. 19

M Z iP 11,:12:46.8 c

A Z iP 11:12:45.9 c

D Z eP 11:12:45.5 c

Pa Z eP 11:12:48 e O d

Hi Z iP 11:12:49.3 c

C&GS card 14-62:

20.2° S., 175.1° W.

11:04:46.6.

26

Feb 0 19--Continued

C&GS card 14-62--Continued

Tonga Islands.

h about 95 krno

Feb o 20

M Z iP 10:15:40 6 0 c

A Z iP 10:15:39.0 c

D Z eP 10:15:38 04 c

N Z iP 10:15:38.6 d

·U Z iP 10:15:38 0 9 d

Pa Z iP 10:15:4002 c

Hi Z iP lO:15~41&3 c

Ka Z iP 10:15:41 0 4 c

C&GS card 14-62:

25.9° S., 178 0 4° Eo

10:07:26.6.

South of Fiji Islands region 0

h about 655 krn.

Feb. 20

M Z iP 16:15:26.5 c

A Z iP 16:15:27 0 4 c

D Z eP 16:15:27.0 c

U Z iP 16~15:26.1 c

Pa Z iP 16:15:28.6 c

Hi Z iP 16:15:26.9 c

Na Z iP 16:15:31,,4 c

Ha Z iP 16:15:16 0 5 c

U PEZ iR 16:30:36

Magnitude 602 (HVO)o

CGGS card 14-62:

43 0 0° Not 144.9° E.

16:05:44.6

Near coast of Hokkaido, Japan.

h about 55 krne
Table 5.-~Distant earthquakes--Continued

U PEZ iPKS 13:12:15

U PEZ iSKS 13:16:47

U PEZ iPSPS 13:24:43

C&GS card 15-62:

6.3° S., 147.00 :E.

11:40:52.8.

North coast of New Guinea G

h about' 80 krn.

eGGS c~rd 15-62:

O,l°S., 122.3° E.

08:4:4:48.8.

Northern Celebes.

h about 25 km. I

Feb. 27

Magnitude 6.3 (HVO).

C&GS card 15-62:

37.4° S., 73.2° W.

12:40:48.9.

Near coast of central Chile.

h about 40 km.

Magnitude 6.25 to 6.5 (Pas),

6 (Berk).

Mar. 1

Pa Z eP 23:49:35 0 6 d

Hi Z iP 23:49:37.2 c

U PEZ iP 23:49:34 d

U PEZ iSS 23:56:30

U PEZ eP 00:01:42

U PEN eScS 23:59:42

M,agnitude 5 0 7 (HVO) 0

C&GS card 16-62:

14.0° Se, 172.5° Eo

23:41:14.5.

Samoa.

h about 73 km.

Magnitude 6 (Pas).

Mar. 2

M Z iP 13:14:54.0 d

A Z eP 13:14:55.4 d

D Z eP 13:14:53.6 d

N Z eP 13:14:54.5 d

U Z iP 13:14:55.0 d

Ha Z eP 13:15:05 0 4 d

C&GS card 16-62:

5.4 No, 126.5° Eo

13:02:59.0.

Off south coast of Mindanao,

P.l o

h about 30 km.

11:51:07.6 c

13:06:51 c

eP

PEZ eP

Hi Z.

u

Feb. 23

M Z eP 20 ,: 31 :15 •4 c

A Z eP 20:31:16.7 c

U PEZ eR 20:47:24

C&GS ca~d 17-62:

3.8° S., 152.0° E.

,20:21:28.6.

New Britain.

h about 25 km.

Feb. 26

M Z iP 08:57:14~8 c

N Z eP 0,8:57:18.2 c

Feb. 23

27
Table' S.--Distant earthquakes--Continued

Mar. 3 'Matt~ 5--Continued

M Z iP 12:26:39.0 c "N Z Tmax 21:39:12

A Z iP 12:26:39.4 c U Z Tmax 21:39:12

D Z iP 12:26:38.5 c Pa Z Tmax 21:39:07

N Z iP 12:26:39.0 c Ha Z Tmax 21:38:52

U Z iP 12:26:39.7 c C&GS card 20-62:

40.3° N•• 125.1° W.

Pa Z eP 12:26:41.2 c 20:57:52.1.

Off coast of California.

U PEZ eR 12:49:42.2 h about 25 km.

C&GS card 16-62: Mar. 7

7 .4° N. t 126. 5° E.

12:14:52.1. M Z iP 11:09:44.0 c

Near east coa$t of Mindanao,

P.I. M Z iPcP 11:10:29 0 3

h about 90 km.

M Z isPP 11:14:53.6

Mar. 4

A Z iP 11:09:44.8 c

Ha Z Tmax 12:21:35

A Z iPcP 11:10:30 0 4

Pa Z Trnax 12:21:40

A Z iPP 11:12:06.8

No preliminary C&GS listi.ng.

A Z isPP 11:14:49.1

Mar. 5

D Z iP 11:09:43.9 c

Ha Z Trnax 08:26:03

D Z iPcP 11:10:29.1

C&GS card 19-62:

34.6° N•• 121.6° W. D Z iPP 11:12:05.3

07:44:00.0.

Off coast of California. N Z iP 11:09:44.4 c

h about 25 km.

Magnitude 4.25 (Pas). 4.25 N Z iPcP 11:10:3109

(Berk).

N Z ePP 11:12:06.0

Mar. S

Pa Z iP 11:09:47.8 d

M Z Tmax 21:39:11

Pa Z iPcP 11:10:34.1

A Z Tmax 21:39:12

Hi Z iP 11:09:46.7 d

D Z Tmax 21:39:11

28
Table 5.--Distant ea~~~$~a~es--Continued

Mar. 7--Continued . 'Ma~~ '11

Na Z iP 11:09:43.6 d M Z eP 15:30:56.3 d

Ka Z eP 11:09:41.1 d A Z eP 15:30:58.9 d

Ha Z iP 11:09:38.1 c D Z eP 15:30:58.5 d

U PEZ isP 11:12:41 N Z eP 15:30:58.3 d

U PEZ isPP 11:14:49 Pa Z eP 15:30:58 0 4 d

U PEZ is 11:16:41 Hi Z iP 15:30:56.8 c

U PEZ iG 11:23:46 Ka Z eP 15:30:52.2 c

U PEE eScS 11:18:01 C&GS card 18-62:

52.30 Nt. 178.00 E.

U PEN eSS 11:20:25 15:23:40.7.

Rat Islands. Aleutian Islands.

Magnitude 6.6 (HVO). h about 135 km.

C&GS card 20-62: . 'Ma:t'~ 11

19.3° N•• 145.30 E.

11:01:00.4. M Z iP 19:30:54.4

Mariana Islands.

h about 680 km. A Z iP 19:30:56.1

Magnitude 6 (Berk). 7 (Pas).

A Z iPcP 19:31:13.5

Mar. a

D Z eP 19:30:53.8

M Z eP 10:43:41.7 d

N Z iP 19:30:54.5

A Z eP 10:43:42.9 d

Pa Z eP 19:31:01.7

N Z eP 10:43:42.8 d

U PEZ is 19:40:50

Ka Z eP 10:43:46.4 d

U PEZ eSS 19:45:40

C&GS card 21-62::

35.1° S•• 179.7° W. U PEZ eSSS 19:48:46

10:33:41.9.

Off northeast coast of North U PEZ iR 19:53:40

Island, N.Z.

h about 25 km. Magnitude 6.3 (HVO) •

29
Table 5.--Distant eart~$Uakes~-Continued

Mar. 11--Continued .. Mar~ '12--Continued

C&GS card 19-62: Ka Z eP 11:51:37.4 c

9.00 N•• 126.7° E.

19:19:05.6. Ha Z iP 11:51:45.1 c

Near east coast of Mindanao,

P.I. U PEZ is 12:01:24

h about 25 km.

U PEZ eG 12:11:20

Mar. 12

U PEZ eR 12:14:24

M Z iP 09:52:55.1 c

M.agnitude 6.7 (HVO) •

A Z iP 09:52:52.3 c

C&GS card 19-62:

D Z eP 09:52:52.8 c 8.10 N•• 83.0° W.

11:40:12.8

Pa Z eP 09:52:49,5 c Near south coasts of Panama

and Costa Rica.

Hi Z eP 09:52:55.0 d h about 58 km.

~agnitude 6.75 (Pas). 6.25

C&GS card 18-62: to 6.5 (Pal) •

9.0 0 N•• 83.0° W.

09:41:45.7. Mar~ 16

Costa Rica.

h about 113 krn. M Z iP 19:51:25.8 d

Mar. 12 A Z iF 19:51:25.9 d

M Z iP 11:51:36.1 d D Z iP 19:51:24.9 d

A Z eP 11:51:33,1 d N Z iP 19:51:25.9 d

A Z ePcP 11:52:26.6 U Z iP 19:51:25.9 d

D Z iP 11:51:36.1 d Pa Z iP 19:51:26.4 d

D Z ePcP 11:52:30,4 Na Z iP 19:51:22.0 c

N Z eP 11:51:33.6 d Ha Z iP 19:51:26.8 d

N Z ePcP 11:52:31.7 U PEZ eS 19:58:36

Pa Z iP 11:51:35.5 d U· PEZ iR 20:05:00

Hi Z eP 11:51:34.1 d Magnitude 5.8 (HVO).

Na Z eP 11:51:37.2 d

30
Table 5.--Distant ea~~h1uakes--Continued ' ,., .

Mar. 16--Continued

C&GS card 22-62:

10.8° S., 165.7° E.

19:42:39.2.

Santa Cruz Islands ~egion.

h about 25 km.

Mar. 17

"Ma~~ 19--Continued

C&GS card 23-62:

0.3° Nt, 123.5° E.

05:54:24.4.

Near south coast of Minahossa

Peninsula, Celebes Islands.

h about 53 krn.

Magnitude 6.8 (HVO).

C&GS card 24-62:

10.6° N., 43.7° W.

20:47:31.7.

North Atlantic Ocean.

h about 25 km.

Mar. 18

u

u

u

u

u

PEZ iPP

PEZ iPS

PEZ iSS

PEE iG

PEZ eR

21:06:19

21:15:40

21:21:27

21:32:12

03:28:39

Mar~ 20

M Z Tmax 17:17:34

A Z Tmax 17:17:44

N Z Trnax 17:17:50

U Z Trnax 17:17:37

Pa Z Tmax 17:17:42

Ha Z Tmax 17:17:00

C&GS card 23-62:

50 •8° N., 129. 7° W.

16:31:48.3.

Queen Charlotte Sound area.

h about 25 km.

, 'Ma~~ '22

C&GS card 23-62:

16 .1° S. I 167. 2° E. U PEZ iP 15:23:56 c

03:06:39.4.

New Hebrides Islands region. U PEZ iG 15:40:07

h about 200 km.

U PEZ iR 15:43:02

Mar. 19

U PEE is 15:32:33

M Z iP 06:06:42.0 c

Magnitude 6.7 (HVO)o

A z iP 06:06:42.4 c

C&GS card 23-62:

D Z eP 06:06:41.7 c 3.20 S. t 142.3° E.

15:13:03.9.

U Z iP 06:06:42.2 c Near north coast of New Guinea.

h about 25 km.

Pa Z iP 06:06:44.2 c Magnitude 5.75 (Berk).

Hi Z iP 06:06:43.3 c

31
Mar. 23

Ha Z eP u FEZ eR 17:17:04

No preliminary C&GS 1ist~ng.

Mar. 24

A Z eP 01:59:31 0 3 d

C&GS card 24-62:

40 0 6° So, 73.3° W.

16:32:43.60

Near coast of Southern Chile.

h about 32 km.

No preliminary C&GS listing.

U Z eP

M Z iP

D Z iP

'Mat', 29

M Z iP 02:00:57,9 c

D Z eP 02:00:58 0 6 c

N Z eP 02:00:58 0 7 c

U Z eP 02:00:58.1 c

C&GS card· 25-62:

51.8 0 Nt. 157.2° Eo

01:52:25.4.

Near south coast of Kamchatka.

13:09:56.1 c h about 155 krn.

13:09:56.7 c

13:09:56.1 c

13:09:56.7 c

D z eP 01:59:31.5 d

A Z eP

Deep.

Mar. 24

Pa Z eP

Hi Z eP

Ka Z eP

I

U PEE is

U PEZ eSS

U FEZ iR

13:09:58.6 d

13:09:58.8 c

13:09:59.0 c

13:18:26

13:22:47

13:28:55

.Mar .29

M Z iP 20:21:02.3 c

A Z eP 20:21:02.8 c

N Z eP 20:21:02.6 c

U Z iF 20:21:02,7 c

Hi Z iP 20:21:03.5 c

Magnitude 6.1 (HVO).

C&GS card 24-62:

5.70 S., 145.00 E.

12:59:30.9.

Near north coast of New Guinea.

h about 111 km.

u PEN iQ 13:25:45 C&GS card 28-62:

0.50 S., 127.4° Eo

20:09:01 .. 9.

Ha1mahera region.

h about 25 km.

32
Table 6.--U.S. Geological Suryey seismograph stations in Hawaii

Station Location

Uwekahuna

(Hawaiian Volcano

Observatory) •

Mauna Loa----------

North

Hilo---------------

Symbol

U

M

A

D

N

w

Hi

Na

Latitude

N.

Longitude

w.

Altitude

(m)

above sea

level

2,010

815

1,115

1,210

20

205

Equipment

(Z, vertical; N, north

E, east-west)

Long-period Press-Ewing: 

(Seismometer and galvan

periods are 15 and 90 s

respect ively 0 )

Short-period Sprengnethe

HVO-l: z1/o

Short-base liquid-level t

Remote recording HVO-2:Remote recording HVO-2: 

Do o

Bosch-Omori: N, Eo (Sei

period 9 secondso)

Short-base liquid-level t

HVO-l: Zo

N, Eo O

Sister Thecla at Jo

Schoolo

HVO-l: Zo

Operated by Rev 0 Ho Hanso

Naalehu Schoolo
Table 6.--U.S. Geological Survey seismograph stations in Hawaii--Continued

Station"-- . .. Symbol Location' '0 • Altitude Equipment

(m)

" .,

(Z. vertical; N. north

Latitude LO,ngitude above sea E, east-west)

N. w. level

·t c

Pahoa------·------- Pa 19°29.7' 154°56,8' -0 205 HVO-1: z.

Operated by Mr. KO,ngo K

Pahoa School.

Kamuela------------ Ka 20°01.9' 155°42.0' 740 HVO-l: Zo

Operated by Mr. Edward V

Preparatory Academy, K

Konawaena---------- Ko 19°30.8' 155°55.1' 495 Not operated in 1962.

Haleakala, Maui---- Ha 20°46.0' 2,090 HVO-l: Zo

Wood-Anderson: N. Eo O

by the staff of Hawaii 

Park at Haleaka1a. Ma

1/ HVO-l is a moving-coil, hinged, vertical-component seismograph with seismometer a

galvanometer'periods of 'DoS secondo Over-damping of both seismometer and galvanometer is 

control the strong galvanometer reaction 0 This seismograph has a peak magnification of ab

at a period of 0 0 25 secondo' Recording is optical, on photographic

2! HVO-2 is a moving-coil, 'vertical=cornponent seismograph with a seismometer-period 

secondo Its signal is transmitted over telephone wires to the Hawaiian Volcano Observator

it is recorded on smoked The response of this seismograph is similar to that of HV

Records from these seismographs at the M, and D stations are recorded on a 

permit an accurate comparison of arrival times at these stations 0
Vis~tors to the Hawaiian'" Volcano""Observatory' during the first

quarter, 11962, included·the follow~ng: .

E. J. Walter, John Carroll University.

Robert E. Houtz, Lamont~Observatory.

T. A. Eastland, Bendix Radio Corp.

A. F. Ellman. Bendix Radio Corp.

Tokuji Utsu, Japan Meteorological" Agency.

Warren Hastings. Howard Leak,' Stan-Lord, Swede Miller, Dan

Davis--U.S. Geological Survey.·~round Water Division.

Masatusugi Suzuki t' Nihon University.

Ryutaro Takahasi. University of Tokyo.

Senator and Mrs. Hubert Humphrey' and son Robert.

A. Furumoto, Institute of Geophysics, University of Hawaii o

H. Vitousek, Institute of Geophysics', University of Hawaii o

Richard Sykes, Magabor Co., Kansas.

Tom Bastien, University of Minnesota.

John Aaron, U.S. Geological Survey, Washington D.C.

Masashi Honma, University of-Tokyo. '

During the quarter "felt·reports"~were either phoned or mailed

in by the following people to whom' we' wish to'express'our gratitude

for these and other instances of" cooperation.

From North Hawaii: Mrs. Christensen, Mr. Paiva', Honokaa Police

station.

From Kau: Mrs. Walters.

From Central Hawaii:' Mr. Walker. Mr. Hansen. Mrs. Lindsey.

From the Hilo area': Mr. Cha,ng t' Mr'. Pierce t Mrs t Shaeffer.

Mr. Blackwood, Mr. Baldwin", Mr.'Kumukahi. Mrs. Elalauli,

Mr. Ho, U.S. Weather Bureau.

From the Kilauea Volcano summit district., Mr. 'Mist, Mrs. Francis,

Mrs. Hansen. Mrs. Duncan. Miss'Cruz, Miss'English, Mrs. Moore,

Mrs. Correa. Mrs." Sumner. Mrs.' Wentworth i M'r • Hamilton. and

Dr. D'Avanzo.

35
UNITED STATES

DEPARTMENT OF THE INTERIOR

GEOLOGICAL SURVEY

HAWAIIAN VOLCANO OBSERVATORY

SUMMARY 26

April, May, and June. 1962

·By

Ae T. Okamura. R. Ye Koyan,agi. and'H. L.· Krivoy

and

Report on the International Symposium on

Volcanology. Tokyo.·1962. by H. A. ·Powers

Observatory Staff

Geology:

J o Go Moore

De Ho Richter (Scientist-in-Charge)

Ce KG Wentworth

Geophysics:

G. Kojima

Ro Yo Koyanagi

Ho Lo Krivoy

A. To Okamura

October 1963

Geochemistry:

W. U. Ault

R. To Okamura

Support:

'J. C. Forbes

W. H. Francis

Bo J. Loucks

A. Yamamoto
Contents

Introduction---~----~-~----~-~-----~-·_------------------------ 1

Report on the International Symposium on' Volcano~ogy,

Tokyo, 1962. by Howard Ao Powers------------------------ 1

Chrono~ogical summary------------------------------------------ 2

Tilt~ng of th~ ground around Kilauea caldera--------~~--------- 4

Seismic summary------------~----------------------------------- 9

Illustrations--short list

Figure 10 Hourly count of aftershocks 'following the Kaoiki

fault earthquake-------- CIIlio--------'-----------------

Tilt~ng of th~ ground around Kilauea~caldera~·------

Map of the island of Hawaii showing' seismograph

stations operated by the Geological Survey and

localities mentioned in the iext--~--~---~-~~~----

Tables--short list

5

8

10

Table 1 0 Tilt coordinates at'Uwekahuna·vault*--------·--..----- 6

20 Tilt coordinates and ch~nges at bases around Kilauea

caldera-------------------------------------------- 7

30 Numbers of earthquakes and minutes of tremor recorded

on seis~ographs around Kilauea caldera------·------ 11

4 0 Local earthquakes recorded by seis~ographs of the

U~So Geological Survey----------------------------- 12

5. Distant earthquakes---------------------------------- 27
HAWAIIAN VOLCANO- OBSERVATORY SUMMARY 26

By Ao To Okamura. Ro'Y o Koya~agit and' Ho Lo Krivoy

Introduction

Dro Powers. who has written the following' report', 'has worked on

or with volcanoes for a large part of his professional career. He

was first employed at the 'Volcano Observatory from 1929 through 1930.

From 1932 through 1941 he worked on' ground-water problems in Maui

and also served the Hawaii National Park at Haleakala o Dr e Powers

worked at the Hawaiian Volcano Observatory 'again-from 1946 through

1948 0 Since 1949 he has been stationed at 'Denver 'and ,. concerned

with geological problems in northern California, -the 'Aleutian Islands,

and in Hawaii o

Report on the~ International Symposium on' Volcanol,o,gy.

Tokyo', 1962

By Howard Ao Powers

Scientists"' frorn"22"countries' attended"the"Internationa1

Symposium on Volcanology that was convened"on" May 9 -. ' 1962.

in the Nihon Toshi Ce'nter. Tokyo 0 ' "Included were 140""representatives from 40 centers of learning in Japan, and about

80 representatives from 23 other countries located on every

continent of the globe 0 Fourteen'wives and'daughters were

among the foreign delegation 0 The' entire ~ , grou'p'rnet "socially

at two delightful evening receptions. hos'ted by" the Science

Council of Japan and by the Ministry of Education o The

ladies of ~he group were entertained at many varied 'functions

during the course of the conference o

The 2-week scientific program was ingeniously arranged

to intersperse auditorium' ses'slons "with 'field observati'on

trips 0 Altogether, 4 days were allotted to auditorium

meetings and a total of 50 papers were presentedo Six

papers were directed toward problems of prediction of volcanic

eruptions and of minimizing their hazards to the local

populace 0 Twenty papers dealt with the 'characteristics,

either general or specific, of a nu~~p of vOlcanic'regions.

ignimbrites or pyroclastic flows and calde:ras are'the',prominent features of 11 of the areas discussed. The ubiquitous

subject of terminology of the process and products of

pyroclastic eruption was discussed informally in a special

half~day sessiono Seven reports were concerned with some

aspect of igneous volatile constituents or volcanic sublimate

deposits 0 Results of current expanded research at the Hawaiian

Volcano Observatory were discussed in three papers, and

certain aspects of continuing laboratory experimental
investigations of silic'ate liquids with~the composition of,

or approaching, natural basalts" were 'summarized in three

reports 0 Three papers appraised "geophysical knowledge of

the crust and upper mantle in'te'rms <'of" hypotheses o'f origin

and behavior of magmaso Several papers discussed specialized subjects, for example~ 'geomagnetic changes at Volcano

Mihara t potassiumcmargon dati'ng of rocks. mechanics of

volcanic earthquakes. and special conditions of possible

lunar volcanismo

Field sessions 'of,the'conference'were'held'at the

active volcano' Asama' and' in" the" ina'ctiv'e H'akone 'caldera

complex 0 At 'the 'Asama 'Volcano' Observ'atory" we' were briefed

on the instrumentation 'and the'types' of geophysical

observations now being rna'de as a result' of 30 years of

operational experien'ceo We examined" in detail the products

and results of different phases of activity during the

eruption of 17830 At Hakone the emphasis was centered'on the

major changes in eruptive activity"and~in"rock'composition

during th'e lo.ng evolution of the Hakone center 0

Three post--conference field "trips" were' run concurrently,

one nortgward to Hokkaido, one southward~to·Kyushu. and to

Ito and 0 shima in central Japano Both,the'Hokkaido and

Kyushu trips featured explosive activity and caldera formation involving ~agma of intermediate to silicic composition;

the Ito and b shima trip featured basaltic to andesitic

lavas and their pertinent type of' eruption o The' trips had

been planned 'with meticulous care; each stop was at a

magnificent "textbook" example'''of volcanism. and together

they presented a clear picture of the'~array""of-volcanism

for which Japan is famouso

Chronological sumrnarx

Inflation of the summit region of Kilauea Volcano continued at

nearly the same rate during the second quarter of 1962 as during the

first quarter 0 The average rate of'tilting. outward from the,·'caldera.

at the inner ring of tilt bases (U. TM. Kam and 'Kea) was about 5

microradians pe'r month (fig o 2) 0

Very small shallow earthquakes at·, Kilauea' caldera continued

unabated throughout the second quarter o Average daily"counts during

April. May t and June were 56. 38. and 56. res'pectively 0 Twenty-one

earthquakes. 6 of which were larger than magnitude 2Q5, originated

along the Kalapana Trail beneath the south'east flank of Ki'lauea "between

April 5 and April 8 0 This source was responsible for occasional

earthquakes throughout the rest of the second quartero An earthquake

from this region at 4g04 aom o on June 7 was reported felt in Hilo o

2
During most of April the number' of earthquakes emanating from

the eastern half of the east rift zone of 'Kilauea averaged 'less than

2 per dayo Earthquakes from this region' 'increased' moderately in

frequency on April 29. and during May the "average 'daily count was 50

The east rift zone was relative'ly quiet during June t when the average

daily count was again less than 2 per dayo One earthquake from this

region was felt at Pahoa on May 26 ,at 1:14 porn.; two others were felt

at Kapoho on June 11 at 9g05 porno and 9~41 porno

The zone about 30 km beneath Halemaumau was again a source of

frequent earthquakes during the second quartero 'Average daily earthquake counts from this source were 6. 7. and 4 during' April, May,

and June, respectively 0 Intervals of relative inactivity (less than

5 earthquakes per day) were interrupted every few weeks by flurries

of heightened activity lasting several dayso A 'magnitude 4 0 3

earthquake from this 30 km deep source was felt throughout the island

of Hawaii at 5~56 aomo on May 10 0 Another. with 'a magnitude of 30 7,

was felt over the eastern half of the island at 6:37 aom o on May 11.

A second magnitude 4 0 3 earthquake from this zone. at 4:35 pOm& on

June 14, was felt over the entire island o A magnitude 207'earthquake

from the same source was felt near Kilauea caldera at 8:31 porno on

June 14 0

The southwest rift zone of Kilauea and the adjacent portion of

the Kaoiki fault system near the Desert seismometer yielded an average

of about 15 earthquakes per -day during April. May. 'and most of June 0

At 3~05 aom o on April 24 a magnitude 4 Q O earthquake from this region

was felt over the entire island of Hawaiio A magnitude 3 0 5 earthquake

from the same region was felt in Pahala and Hile at 9:43 porno on

June 8 0

On June 27 a magnitude 6 0 1 earthquake from an epicenter along

the Kaoiki fault system (19°24° No. 155°25' Wat focal depth 3 to 8 krn,

origin time 6~27~1403 HST) was felt over the entire' island of Hawaii

and on the islands of Maui and Oahu o It was the largest earthquake

in the Hawaiian Islands since March 30, 1954, when two earthquakes of

comparable size originated near the south shore of Hawaii west of

Kalapanao As the epicenter lay in the very thinly popUlated Kau

District of Hawaii, no serious damage was done,' although there was

widespread minor damage to loose objects which were overturned or

dislodgedo

Aftershocks of this earthquake were very numerous o Hourly

aftershock counts for the first 60 hours following the main earthquake

are shown on figure 10 More than 500 were recorded during the first

6 hours o The largest aftershock (magnitude 30 7) occurred at 3:37 aome

on June 28; it was felt in Hilo o

In addition to earthquakes belonging to the groups discussed

above, seven others were felt in Hawaii during the second quarter o

The first of these originated about 7 krn northwest of Hilo at a depth

3
of about 20 krn at 11:19 porno on April 11 0 Its magnitude was 3 0 0 and

it was reported felt in Hilo o An 'earthquake felt in Pahoa at 9~26 porn.

on May 16 had a magnitude of only 2 04 and 'emanated -from a shallow

focus about 9 km southeast of the Ahua seismometer o

A magnitude 3 0 5 earthquake from "a focus 'about l2'km deep and

3 km north of Kealakekua was felt near its epicenter at 11~17 aorn o

on May 23 0

The earthquake felt over the entire'island of-Hawaii at 10:58 p.mc

on May 23 had a magnitude of 3 0 7 and originated about 10 km south of

the Desert seismometer at a depth of about 45 km G A magnitude 3 0 6

earthquake from a focus about 8 km deep and 14 km northwest of the

Desert seismometer was felt in Mountain View at 9:11 porno on May 29 0

An earthquake felt in Honokaa at 11:02 p~mo on May 31 originated about

22 km east of Honokaa at a depth of about 12 kmo Its magnitude was

2 0 9 0

On June 4 at 11~58 porno a magnitude 3 0 9 earthquake from a focus

about 5 km deep and 20 km south-southeast of the Ahua seismometer was

felt over the southern half of the island of Hawaiio The earthquake

felt at Pahala at lO~03 aorn o on June 7 originated about 5 km south of

the Desert seismometer at a depth of about 45 km. Its magnitude

was 3 0 4 0

The field tilt-base network was reoccupied'immediately after the

large Kaoiki fault earthquake of June 27 to 'ascertain whether the

summit region of Kilauea had been deformed at the time of the earthquakeo The pattern of tilt changes spanning the occurrence of the

earthquake (figo 2) is very similar to that during the previous

several months (Summary 25)0 However, it does appear that tilt changes

at Keamoku (Kea) and Kapapola Ranch (Kap) were abnormally large

during the second quarter o Both stations are'on the downthrown side

of the Kaoiki fault.systemo Keamoku tilted toward the fault. and

Kapapala tilted away from ito

Tilting of the ground around Kilauea caldera

Tilting of the ground around the summit of Kilauea is monitored

daily by a short~base water-tube tiltmeter in Uwekahuna vault (table 1).

and at irregular intervals it is measured on a regional scale by means

of a network of field tilt~bases and a portable water-tube tiltrneter

(table 3)0 The attitude of the ground surface at each tilt base is

reported in terms of' north-south and east-west tilt, coordinates 0 Both

coordinates at each station were arbitrarily set 'equal to 500 when

measurements at that station were begun o Increasing tilt coordinates

correspond to northward and eastward.tilting of the earth's surface.

that iSi to a relative subsidence toward the north and easto C A I-unit

~hange in coordinate corresponds to a tilting of 1 rnicroradian (1 mm

per km) in the direction indicated o

4
200

"1

.....

OQ

tj 180 CD (1)

SlJ

tj

rt • ::r"1

..01

g, 0

::r: I"

en tj

til 140 AFTERSHOCK FREQUENCY 0

OlO

•• t:=

FOLLOWING THE KAOIKI FAULT r-0::S

to 0 120

• t-h QUAKE OF ISh 27

m JUNE 27. 1962 s (/)

• PJ lU

.. t-h

r+ C-t(1)

tj

a =' en

(}l en ::T

0 LL.

1\.>0 0 ---.Ji"\'

.. en 80

LrJ

U>O CD O'f-' :I

• 0 ::::) 60 Z

.....

=' OQ

r+

:r 40

(b

PI

0

..... 20

.....

t-h

PJ

.... 0 4 8 12 16 20 24 28 32 36 40 r+

TIME IN HOURS
Table 1.~-Ti1t coordinates at Uwekahuna vault, April, May, and June,

1961

Date N-S E-W Date N-S E-W

".i':"

Apr. 1 430 535 May 13 433 531

8 431 536 20 433 531

15· 432 535 June 3 434 533

22 433 535 10 435 534

29 435 535 17 436 532

May 6 436 532 24 435 529

6
Tilt base Tilt coordinates

(location)

Date

(1962)

N-S E-W

Rate (10- 6 rad/rno)

and direction of

tilting since

last reading

D

r

Uwekahuna

N•• 155°17 0 4' W.,) 'June 29 M

Tree Molds

(19°26.3' Net WQ) 29 427.1 51407 

Sand Spit

(19°24 0 1' N•• 155°16.8' WI) Not occupied this'epocho 

Kalihipaa

(190 21 e 4' N., 155°15.3' W.) July 5 422.3

Change negligibl.e.

direction randome

Keamoku

(190 25.1' 155°1900' W.), June 30

Ahua Karnokuko1au

(19°22.7" Ne, 155°1606' W.) July 1

466.1

704.7

623.2 6.3

5.2

50° W. 

Kipuka Nene

(19°19.4' N., 155°16 0 7' W. )

Hi1ina Pali

(19°18.2' N Q t 155°18 0 6' W. )

(19°26., 2 f N. , 155°14.3' W. )

Kapapala Ranch

(19°2005' t 155°23.,8' W. )

Not occupied this epocho

Not occupied this epoch.

Not occupied this epocho

A

M
S KM

1---1

TILTING RATE 2.5 )( 1()6 RADIANS I MONTH

CO °0

'\)40

KO~ cr 0

tV Q 0

CO Kal

",,0 Q

Kap

\

eKN

2000

Figure 2.--Tilting of the ground around Kilauea caldera, March 29, 1962,

to June 30, 1962. The vector depicting tilting at a given tilt

base points in the direction of maximum relative subsidence and

has a length proportional to the rate of tilting during the

measurement interval. Closed circles represent field tilt bases;

open circles. short-base water-tube tiltmeters.

8
Seismic summary

Events recorded by the"UoSo Geological Survey seismograph network

in Hawaii fall into two'categories: local earthquakes and tremor

originating in the region of the Hawaiian Islands, usually within 100

km of at least one seismograph, and distant earthquakes originating

more than 3,000 km from Hawaiio As an index of seismic activity at

Hawaiian volcanoes, daily counts of earthquakes and minutes of tremor

recorded by seismographs in Hawali are listed in table 3 0 The earthquakes are separated into groups on the basis of region of origin as

determined by analysis of records obtained daily'at the Observatory

(U, M, A, D, N)o Earthquakes of magnitude 2.5 or greater are

generally sufficiently well recorded to be located with greater

precision; they are listed individually in table 4. Data on identifiable phases from distant earthquakes are listed in table 50

Locations of the seismograph stations are shown on'figure 3,

and essential data ori "the stations were given in Summary 25 8

9
Upolu Point

I,e --+-------~,

EXPLANATION

• SeismoQraph Station

• Town or locality

10 I~ MU..

Contour int.rval 1,000 f••t

Datum i, mlan lIa 'I'"

Topa,raph, b, US Glolo,lcol Sur.l,

Laupahoehoe -+- _

Capt

l(u",""ahi

Apua Point

Point

,-----------------------+---------I,e

Figure· 3.--Map of.the island of Hawaii showing seismograph stations

operated by the Geological Survey and localities mentioned in

the text, Epicenters of local earthquakes are given in terms

of geographic coordinates. which are indicated at the edges of

the map.

10
...

Table 3, summ

Table 3.--Numbers of earth uakes and minutes of tremor recorded on

U, H, A, D, and N

ra hs around Kilau

[Tremor is separated into three categories--(l) deep, (2) intermediate, and (3) shallow--on 

of. relative amplitudes on seismographs in the summit region. Unless otherwise stated, tre

presumed to be associated with movement of magma within the central complex of Kilauea.

Halemaumau rock slides (4) are detected by the characteristic record they produce on the No

seismograph.

Earthquake categories are: 5, shallow earthquakes in the Kilauea caldera region;

6, shallow earthquakes along the SW. rift zone of Kilauea and th

adjacent portion of the Kaoiki fault system;

7, earthquakes along the eastern half of Kilauea's east rift zo

8, earthquakes from a source about 30 krn beneath Halemaumau;

9, shallow earthquakes along the Kalapana Trail flank of K

10 to 15 km W. of Kalapana);

10, earthquakes from other regions: Kona. Mauna Kea, etc. 

Date Tremor (in minutes) Halemaumau Kilauea sw. rift E. 30 Kalapana 

(1962) slides caldera and rift km Trail

Deep Intermediate Shallow Kaoiki

1 2 3 4 5 6 7 8 9 

Apr. 1 _-._.. -------- ---------- 245 14 .. 6 -------- ......

2 ..- ....

------------

..-....--_...

....

71 9 ..- .... 11 ------_..- 1 

3 ---- 18 ..--...

----------

42 12 1 10 .._............ 1 

4 _.. .. 2 -_.-_...._.. ...._-_.. 71 15 2 6 ..... ......... 1 

5 ......- ...._--.. ...

----------

30 3 .._.. 7 5 1 

6 --_.. .. .. .. ....- ..---_... ......-._---_... 40 11 ---- --- 13 

7 ---- -_..--..---....- -------- ---------- 40 8 1 5 2 1 

8 33 ....--------_.. -------- ---------- 45 11 1 5 1 2 

9 ....-- .._--_-._----- ....-..---- ---...._--.... 63 9 1 14 ...----- 1 

10 6 ..-_.. -------- ---------- 37 12 1 11 .... .. 1 

11 ---- .._-.._-..-._--- .. .._--- 55 12 1 12 ----_-._--- 1 

12 ---.. ....---------- -------- ---------- 47 7 2 11 -------- --_
13 --..........__..--- ----_-._-- ---------- 40 13 5 9 ---------- 8 

14 .....--..------.. --------

----------

44 25

4 -.--_-.----- 3 

15 --_..--.... ..._... .._--....... ---------- 52 10 3 -.. 1 

16 .... .._-........- --------

----------

60 16 1 2 -......- ...-.... 2 

17 3 --------

----------

37 19 1 5 1 

18 ..._..-_.. ..- ......, ..- ..- .. .....-__........- 44 10 5 --.... 1 

19

------------

--------

----------

57 11 2 8 -------- .. 

20 5 --------

----------

60 10 3 2 -------- -..

21 24

------------

--------

----------

45 7 3 --..._--.... -. 

22

------------

--------

----------

70 14

2 3 ..-.__......... ....

23

------------

--------

----------

63 33

2 11 --------

24

------------

--------

----------

39 57 3 -------- 

25

------------

--------

----------

56 14 3 --.. .. 2

26 3 --------

----------

44 36 1 3 --------

2 

27 22 62

----------

37 22 3 2 ....__...-_.. ....

28

------------ 7 ---------- 60 5 1 8 .......-_....- 

29

------------

2

----------

45 11 13

4 ..........-_..- --

30 5 --------

----------

37 9 4 8 1

--

May 1 9 -------- ---------- 37 7 1 14 .. 1 

::t

2

2 --------

----------

38 24

2 1 --

\T"' 3 12

2

----------

41 7 7 ..-.. ..- 2

4

------------

--------

----------

26

4 1 3 -------- 

5 3 3 --------

----------

30 9 8 3 --------..

6

------------

--------

----------

25 7 9 3 1 1 

7

------------

-------- .. .._... .. 38 10 8 3 2

8 _.._....- .._-.-,_.. --------

----------

50 11 9 20 ..--- -.,-

9 ..._.._-..-_-. _-.....--_...

----------

40 8 1 26 ....

_

..

10

------------

.._-_....._-

----------

34 28 1 46 -------- 

11 15

------------ 7 ---------- 50 15 2 20 ..-,-,_.._--- 1 

12 14 --------

----------

45 20 5 6 .-,------- 1 

13

------------

80

----------

33 10 3 4 1 .._

14 ........---....-....

-------- ----------

26 33 23 4 5 --

15 .. ..--_.._- 6 ---------- 25 27 9 5 ..--- ---

16 4 3

----------

35 9 3 4 --....-,-....--- .. 

17 ... ..._---.. .... -.__....- ...._--_......- 30 5 4 3 .s ....18

------------

..-..-_....- .. ..-....

- 30 9 4 3 -------- 1 

19

------------

--------

..

30 12

4 7 1 1 

20 25 --------

----------

38 14 11 5 -------- 1 

21

------------

3

----------

60 21

4 -------- 1 

22 2 --------

_

.. .._-- 36

4 5 1 ..--.. 

23

_

.. ..... -------

..-.- ....._--_..-- 39 26 3 .. 2
24

..

25

----------

52 19

2 2 .._

25

4

.. _

.. 35 14 ....-_..- --

26

..

------------ .....

_

..... ....

_

.... 33 5 8 1 .-......- ..-..-. 

27 -----------._-- --_....-.... ....... 39 5 2 1 --_.. ........ 1 

28 ..-..... .. -...........---- 21 8 2 3 .. .. 

29

2 .._.. .._------ .-,-----.... ...._----- 32 18 1 .. .. 1 

30 ...-..----.. ....- ....._--..-.. 32 10

4 1 ... ..- ..-_

31 ....

_

..

--

..-.-._--- ....

_

........_-- 49 29 6 ..-. 2 

June 1 ---------------- 6

----------

39 6 3 1 2 

2 .. .._- -------- ---------- 35 22

2

2

-

....

3 -.._--.............. --------- ----------- 31 16

2 ---...----- --

4 ...... .._..-.. __.. -..-._------- 43 10 1 3 .._--_.. --

5 --..,.._-_..._--- .._..._.......- ---------- 34 11 1 2 --------

_

..

6 3 ......... ..- 7 ........

-

.._.-,-- 57 20 1 2 1 

7 2 _........ ..- ..-_....-_.. 35 14

2 --.. .. _.. 

8 4 ...... ..-..- _...........

_

..

.... .. .. 31 30 1 8 1 

9

------------ 3 ---------- 50 14 

10 ......_---.......-- ..-_.._- ---------- 51 12 3 -----_.... 

11 ------------- .._-_.. 1 64 25 6 --------- 5 

12 ...--_....

_

.... --------

----------

78 22 10 .. ---

13 6 ..........-----....... -------- ...._--_.. 44 25 30 ---_... .... 

14 .. ..__.._-..-_.. ----..--..._..

----------

40 15 7 -------- 

15

4 ---_.. .. ---------- 39 10 3' 1 --

16 ..-......

_

.._....

--

--------

---------

..

42 25 5 5 .. ....

2 

17

....

_

....-........

----------

93 27

2

4 -.. 1 

18

2

5 ..... .._-..,- 95 15

2 7 .. .. 2

..-

...... 19 ...._---------

4 102 16 10

2

----------

_____

....-r-.

20 6 ..- ..-...._.., .. ..-.._-_.. 95 9 1 -------- -_-

21 .. .._...- 5

----------

95 24 1 1 _..__........- 1 

22 -.... ...., .... --_..-.. 71 10 7 2 -------- 1

23

2 10 ----_.. ..-.. 69 18

2 1 2 

24

2 .._----_.. ------------ 54 13 5 7 --------... 1 

25

..

....-..-..- ..-..---.... 57 16 9 .....__.. 4

26 ...... .._--..-... .. -._...._---.... 69 19 1 5 ..........- ..- 1 

27

------------

-------- 7 29 500

2 .. _..

28 .. ........_--..- -------- 8 37 410 ..--.. 

29 .. .._----_.. .... 42 III 3 4 ..--.. 2 

30 -..._---.._-_-.- ..-...-.... --_.._-_.. 65 126 3 6 ---------- ..-
Table earth uakes recorded U.So-Geolo ical.Surve

[Except for smaller "earthquakes'of special interest, only earthquakes with magnitudes of

greater are listed o Origin time is Hawaiian standardo

In the following list some origin times are followed only by "KM 30" and a.statement of 

These are all members of a 'continuing family of quakes noted also in other Summariese

mean focus for this group is beneath Halemaumau at a depth of 30 km (19°24 0 1' Not 

Origin times of members of a second persistent sequence of earthquakes are.followedby 

(Kalapana Trail) 0 These earthquakes originate at very shallow depths in a remote reg

the Kalapana Trail west of Kalapana, and they generally are not fe1to Seismograms 'of 

earthquakes are poorly recorded and difficult to interpret. so only an approximate ep

19°20' No, 155°05' Wo , can be assigned to theme

The mean focus of the magnitude 6 0 1 Kaoiki fault system earthquake of June 27 and its a

is 19°24' No. 155°25' Wo, at a depth of 3 to 8 kmo This focus has been abbreviated. "

Date Time Magnitude Epicenter 

(1962)

h m s Late Ne Longo Wo Descripti"on .. - -

Apr o :2 12 21_ 5100 20 1 19°24 0 9' 155°04 0 1' 13 km pf 8 km 

2 23 22 24 0 5 2 0 9 19°59 0 0¥ 155°4908' 12 km So of 5 krn 

4 07 32 04 0 0 2 0 0 19°3065' 155°43.5' 21 km Eo of Kealakekua=-- 3 km 

5 01 35 01 0 9 2.4 19°15.9' 155°1202' 2 km NW o of Apua Point-- 12 0 5 

5 08 33 57.0 2112 190 24()0' 155°42 0 8' 15 km NNEo Of Puu 0 5 km 

Keokeo ..

5 10 33 25.9 2 0 3 19°24.9' 155°16.2' Kilauea caldera--------- 50 k
ical. Surv

Date Time Magnitude Epicenter 

(1962)

h m s Lat& Nit L'ongo Wo Description - .. -

Apro 5 22 19 12 0 6 3.4 KT o

5 22 46 20.9 2 0 7 KT o

6 17 38 02 0 7 3eS KT.

6 19 58 46.5 3.2 KT G

6 23 46 10.8 3 0 5 KT.

7 05 29 03 e O 3GO KT o

8 07 08 15 0 4 2.8 19°16.0' 156°33.0' 70 km WSWo of Kealakekua- 8 km 

8 23 57 53 0 1 2.4 19°06.8' 154°55.2' 34 km SEe of Apua Point-- 12b5 

9 10 55 26 0 2 2 0 4 155°51 0 9' 5 km SEt of 5 km 

10 02 54 25 0 3 2 0 5 KT •

.-

10 20 53 14.5 202 19°13 0 7' 155°4902' 11 km NEo of 

11 03 26 06 0 0 2 0 4 19°19 0 1' 155°11.4' 10 km SEe of Ahua 3 km 

seismometer.

11 14 33 17 0 6 2.7 KTo

11 23 19 16 0 5 3 0 0 190 44 e5' 155°08.5' 7 km NW o of Hilo. Felt 20 km 

in Hiloo
Table 4 o --Local earth uakes recorded b

Apr11, May,

ieal,. Surve

!

Date Time Magnitude Epicenter .. 

(1962')

h Lat6 No Longo W. Description

.- - ..

m s

- - -

13 15 30 34 D 7 2.5 19°29.2' 155°46 0 4' 15 km ESE. of 'Kealakekua 3 km 

14 05 42 0503 2.9 19°38' 156°19' 53 km WSW. of Keaho1e 8 km 

Point.

14 07 46 58 0 8 2.7 KT.

16 16 38 40 0 1 2.1 19°38.8' 155°10.8' 13 km SW. of Hi1o------- 45 k

16 17 50 48 0 3 201 19°26 0 7' 155°09.7' 32 km SSW. of Hi1o------ 25 k

17 19 40 55 0 6 203 19°28.6' 155°16.8' 6 km NNE. of Uwekahuna 12 0 

seismometer.

18 23 24 18.2 2 0 0 19°4409' 155°29 0 6' 3 km ESE o of 5 km 

20 17 32 203 Kaoiki.

.

23 18 23 16 0 9 2.4- KM 300

24 03 04 50cl Kaoiki. Felt island-wide.

26 04 54 20.5, 2.5 19°07.3' 155°04.0' 66 km S. of Hilo-------- 8 km 

26 09 21 58.8 3.4 20°05' 156°08' 50 km WNW. of Kamue1a--- 12 0 

27 12 47 07.3 2.7 KT.
Table 4 0 --Local earthquakes recorded by seismographs" of the" U& So Geological Survey" 

April, Max, and June, 1962--Continued

Date Time Magnitude Epicenter 

(1962)

h rn s N. Longe. W. "0

- - -

Apr 0 27 22 08 27.2 2$6 Kaoiki.

28 20 03 0208 2.4 19°26.5' 155°21 0 4' 6 km SEo of Mauna Loa 8 km 

seism"ometer.

29 17 51 39.0 2 0 5 19°20.0' 155°07 0 7' 16 km SEo of Ahua 12 0 5 

seismometer.

30 16 38 36.5 3.0 KT.

May 1 18 58 13.4 3.7 18°40' 156°40' 117 km SW. of Kealakekua 12 0 5 

2 01 25 29.7 2.5 19°13.0' 155°17.5' 16 km SEo of Desert 40 k

seismometer.

2 13 31 47.7 201 19°25.1' 155°04 0 0' 34 km SSEo of Hi1o------ 3 km 

3 13 11 45.5 2.3 19°09.8' 155°38.6' 13 km NW. of 

3 16 22 57 0 0 2.1 19°37 0 8-' 155°06.8' 9 km N. of Mt. View----- 

6 03 38 57.7 20 3 KT.

6 05 20 23.1 2.1 Kaoiki. .-

6 15 18 31.5 2.3 19°03.1' 155°17.8' 34 km SSE. of Desert 12 0 5 

seismometer.
Table 4 o --Loca1 earth uakes recorded b

Apr1l, .

ic.al· .. Surv

.....

0'1

Date Time Magnitude

I Epicenter 

(1962 )..

h m s Lato No LO,ngo Wo Descrip.tion

- - -

-

-

May 7 00 58 38 0 4 3.1 19°14 0 3' 53 km So of Hi1o-e»<:=c:I:>..C=-.- 45.- k

8 03 24 28 0 0 2 0 2 19°02.8' 155°31 0 7' 6 km ESE e of 12 0 5 

8 14 49 01 a 5 2.5 KM 30 0

8 21 04 14 0 0 2 0 5 19°13.0' 155°17 0 5' 16 km SEc of Desert 40 k

seismometer o

8 12 04 46 0 0 2.,3 19° 18 8' 155°23 0 9' 4 km SSW o of Desert 

seismometer 0

9 22 19 19.0 2.6 KM 30.

10 00 37 01 0 6 2.6 KM 30 e

10 05 56 04 0 9 4.3 KM 30 0 Felt is1and-wideo

10 06 15 46 e 6 2.5 KM 30.

10 07 43 26 0 4 3()4 KM 30.

10 07 44 47.1 2.5 KM 30.

10 15 02 28e6 2.7 KM 30.

10 16 28 23.5 2.5 KM 30.10 20 19 30.8 2.4 KM 30.
Table 4 o --Local .i·cal',Sl.trVe.

--------

............1111!1!!111--.........--.-..... .....-............- ..... .

i

Date Time Magnitude Epicenter . 

(1962)"

h m s

.

- .Lato No W. .Description

- - -

May 11 00 47 34 0 3 2,,4

....

19°16 0 7' 1550 08e5' 18 km of Ahua

..

8 'km 

seismometer o

11 01 55 4703 2.3 KM 30.

11 02 51 39.8 2.3 KM 30.

11 05 00 23.0 2.3 19°0805' 155°00.4' 13 km SW. of Pahoa------ 3km 

11 06 37 23 0 4 3.7 KM 30 0 Felt in eastern

half of island'.

11 06 40 50$2 2.7 KM 30,

11 10 38 02.5 2 0 6 19°18.8' 155°13.9' 9 km SSE .. of Ahua 3:,km

seismometer.

11 15 04 20$2 2,'3 KM 30.

12 16 16 56.3 2.4 19°18.4' 155°0502' 45 km S. of Hilo-------- 3 km 

12 22 27 23.5 2.5 19°15.1' 155°12.9' 14 km SSE. of Ahua 45 km 

seismometer.

13 06 36 55.9 2.3 KM 30.
Table earth uakes recorded b

Aprl.l! -May,

Date Time lMagnitude Epicenter 

(1962) -

h NG W, ,Description

" '.

m s Late Longo - - _.

May 13 07 57 3&3 Kaaiki.

14 04 00 54 0 0 2.5 KT o

14 16 59 52 0 0 3 0 1 19°14.0' 154°59.8' 34 km SEt of Ahua At s

seismometero

16 21 25 44c.l 2 0 4 19°27 0 9' 154°52.7' 9 km SEt of Ahua 

seismometer. Felt at

Pahoao

17 14 24 45.7 2.7 KTo

17 17 13' 12.2 2.9 KT.

18 09 24- 2.6 19°22.0' 155°30.0' 19 km SW. of Mauna Loa 3 km 

.

- seismometer•

18 23 21 38 0 1 2.4 KT.

20 13 43 18 0 6 2 8 1 155°26.1' 11 km SW o of Keanako1u-- 8 km 

20 19 05 15 0 3 2 0 5 19°23 0 2' 155°30.0' 18 km SW o of Mauna Loa 3 km 

seismometer.

21 02 11 41 0 4 2 0 4 19°16.0' 155°1201' 14 km SE. of Ahua 8 km 

seismometer.' -
Geolo ic:al."Surve

1·9&2--Con-t1.nued

....

_

...

_

......--_...--..

Table 4 o --Local

_-.._-_...._-........__.... ......... ...

__

.....

---

Date

(1962r

Time

h m

- -

s

-

Magnitude Epicenter

Lat -N. Lo.ngo W0 Description

May 21 15 19 29 0 6 190 24 d 8' 155°18 0 4' 2 km SW. of Uwekahuna

seismometer o

8 km 

21 15 43 23 0 0 2.4 19°27.5' 155°11 0 4' 11 km of Uwekahuna 12 0 5 

seismometer 0

21 23 16 30 0 2 20°11.7' 155°23 0 6' 15 km NEt of 3 km 

22 02 41 45.0

......

CD 23 11 17 05.5 19°32 0 5' 155°55.5' 3 km No of Kea1akekua&

Felt at Kona.

12c5 

23 22 58 09 0 9 19°15.1' 155°23.1' 10 km S. of

seismometer 0 Felt

island-wide.

45 k

26 13 13 45 0 8 2.9 19°26.0' 154°55.3' 8 km SSE. of Pahoao

Felt at Pahoa$

5 km 

29 21 11 08.3 3.6 19°23.3' 155°30.0' 14 km NW. of Desert

seismometer. Felt at

Mto View.

8 km 

29 21 27 27 0 5 19°04 6 8' 155°19.6' 30 km SSE. of Desert

seismometere
Table 4 0 --Local earthquakes recorded by seismographs. of the U·. S0 Survey

April, May, and June, 1962--Continued

; i

Date Time Magnitude Epicenter 

(1962)

h m s Lat. N$ Wa

- - -

May 31 13 44 2.7 19°1301' 155°30.9' 5 km NW. of 8 k.m 

31 23 02 03.8 2.9 155°17 0 5' 22 km Ee of Honokaao 1205 

Felt at Honokaa c

June 1 18 59 01.8 202 18°50.1 ' 155°30.5' 20 km SE o of Kalae Pto-- 8 km 

1 23 37 40,4 2.0 19°12 0 3' .155°23.9' 8 km E. of Paha1a------- 45 k

2 07 33 . 05.8 2.3 KM 30,

2 12 20 46.3 2.4 19°22.4' 155°03.2' 18 km SW. of 'Pahoa------ 5 km 

3 11 30 11.5 2.5 19°19.0' 155°02.5' 22 km SW ca of Pahoa------- 45· k

4 23 35 2103 3.9 19°13' 155°13' 20 krn SSE Q of Ahua 5 km 

seismometer. Felt in

Hil0. Puna.

Pahala. and Volcano •

..

7 01 33 19 0 2 2 e 4 19°25 0 0' 155°42.9' 25 km SEo of Kealakekua- 3km 

7 04 03 37 0 0 20 7 KT o Felt at Hiloo

7 10 02 58 0 8 3.4 19°17.7' 155°23.1' 5 krn S. of Desert 45 k

seismometer, Felt at

I Pahala.
Table 4.--Local earth uakes recorded b

May,

!

Date Time Magnitude Epicenter 

(1962)

h m s Lat. N. Long. W. "Description

- - -

June 8 10 10 54.1 2.4 Kaoiki o

8 11 21 55.9 2.5 19°39.2' 155°12 0 6' 15 km SW o of Desert 45 km

seismometer.

8 11 24 58.9 205

8 17 38 31.0 2.6 KT.

a 21 43 16 0 5 3.5 Kaoikio Felt at Pahala

and Hiloc

9 00 47 52.0 2.9 KT.

9 04 32 38.8 3.2 KT.

10 00 15 04.4 2.7 19°09.4' 154°59.7' 11 km SW o of 8 km 

10 01 09 300 KM 30.

10 02 24 15 0 4 2.5 19°14.0' 155°03.7' 53 km S. of Hilo-------- 8 km 

10 05 28 46 0 0 20 7 Kaoiki.

10 17 09 17 0 0 20 5 19°21.5' 155°03.4' 40 km SSE. of Hi1o------ 8 km 

11 02 55 57.0 2 0 7 20°06.1' 155°42 0 3' 10 km NW. of Kamuela---- 3 km 
...

_

....

_

........._-....-_.-.-

.......

Date Time Magnitude ; Epicenter

(1962)

h m .s Lat. No Longo Wo '" .D·es.cription - - ....

June Ii 08 11 29.2 20 5 200 06 e l' 155°42.3' 10 km NW o of Kamuela----<::D 3 km 

11 09 41 58 0 0 2 0 6 19°20.5' 155°3006' 17 km NNW o of Pahala--czoa= 8 km 

11 10 53 28(J7 20 8 20°06.1' 155°4213' 10 km NW o of Kamuela=--ca- 3 km 

11 19 46 35 0 5 2.6 19°17.3' 155°30.1' 10 km NNW. of Pahala---- 

11 21 04 54.1 2.8 19°25 0 5' 155°00.4' 10 km SW o of Pahoa$ 8 km 

Felt at Kapoho.

11 21 41 18.3 1.9 ---do--- ---do---- -------do--------------- 

12 06 15 35 0 4 2.5 19°12.5' 155°10.2' 21 km of Ahua

seismometer o

13 16 34 55.3 4.3 KM 300 Felt island-wideo

13 19 16 18.9 3.2 KM 30 0

13 19 27 52 0 7 2.4 KM 30.

14 20 31 18.9 2.7 KM 30 0 Felt at Volcano

region.

15 01 10 00.5 2.6 190 18e7' 155°16.8' 13 km S. of Uwekahuna 8 km 
Table ical...Surv 

Date Time Magnitude Epicenter _.: 

(1962)

h m s Lata No Longo W. - - --

June 16 13 41 00e5 2 0 5 KM 30 t

.'

16 13 50 05 0 6 2 0 1 19° 45.2' 155°28 0 7' 5 km Eo of Pohaku1oa---- 12 0 5 

16 20 11 23.8 2 0 5 19°13 0 7' 155°36 0 6' 18 km NNW o of Naa1ehu..... c::a- 3 km 

17 07 02 49 0 9 205 19°20 0 5' 155°49 0 4' 20 km of 

18 04 38 11.1 2.5 Kaoiki e

18 05 40 47 0 2 2 0 5 19°21 0 9' 155°0502' 40 km So of Hilo-------- 8 km 

18 15 21 38 0 3 2 0 5 19°56 0 2' 155°31.5' 20 km of Kamue1a---- 3 km 

19 04 09 22 0 7 2.7 Kaoikio

19 21 37 02 0 3 2 0 8 20°06 ' 156°19' 67 km WNW. of Kamue1a--- 12 0 5 

21 11 13 25.5 20 3 19°55.0' 155°31.5' 20 km SW. of 3 km 

21 12 57 45.4 2.9 19°16.5' 155°07 0 1' 20 km SEt of Abua 8 krn 

seismometero

22 00 11 45.3 3 Gl 2 KT.

22 00 21 59 0 1 2.9 20°58' 155°01' 128 km NE& of Kamuela--- 12 0 5 
Table 4.--Local earth Geo10 ical Surve

Date Time Magnitude Epicenter 

(1962)

h m s Lat& N. Long. Wo De-s-cription

- .- - ..:..

June 22 00 57 40 0 1 2.5 :KTo

22 01 05 43 t 7 2.5 19°21.8' 1550 03 e 4' 19 km SW. of Pahoa------ 12 0 5 

22 02 15 28.2 2 •.8 ---do--- ---do----

23 00 08 49.3 2.3 190 21 e 5' 155°05&6' 40 km S. of Hilo... 8 km 

23 17 00 34.2 2.8 KT.

21+ 02 33 17 0 1 2.5 KM 30.

24 04 22 27.0 2.5 19°32.2' 155°53.1' 3 km NE. of Kea1akekua-- 3 km 

24 09 53 37.0 2.5 ---do--- -- ---do---- 

25 10 00 46.4 3.0 18°33' 154°40-' 115 km SEo of Ahua 12 0 5 

seismometer.

25 22 06 36 0 0 2.7 19°52.2' 155°33.7' 20 km SE. of -K-amuela---- 8 km 

26 1-8 48 18.3 2.3 19°24 0 1' 155°47.9' 18 km SEe of Kealakekua- At s

-.

27 04 31 33 0 5 2 0 5 KM 300

27 18 27 14.3 6.1 19°24' 155°25' Kaoiki. Felt on Hawaii. 3 to 

Maui. and Oahu.
Table 4 o --Local earthquakes recorded by; seismographs. of tbeUoS. Geological Survq

April, Max. and June, 1962--Continued

;

Date Time Magnitude Epicenter 

(1962 )

h m s Lato N. LO?g. ne-scripti,?n - - -

June 27 19 15 30.4 3.2 Kaoikio

27 19 40 27.0 2.3 Kaoikio

27 19 48 03.7 2.5 Kaoiki.

27 20 14 10.7 2 0 9 Koaiki.

27 21 30 38.5 2.8 Kaoiki.

•

27 21 50 52.4 2.5 Kaoiki.

27 22 42 05.8 2.5 Kaoiki.27 22 47 49.0 2.5 Kaoiki.

27 23 09 27.0 2.5 Kaoiki.

27 23 S1 27.9 2.5 Kaoiki.

28 00 05 4200 2.4 Kaoiki.

28 00 46 29.4 2.4 Kaoikio

28 01 -57 09.4 2.8 Kaoiki.

28 02 22 02.4 2.7 Kaoiki.
Table 4 o --Local earth recorded b

prJ-I, May.

Geolo i.ca·l. Surve

Date Time Magnitude Epicenter R

(1962)

h Lat. N. Long • w. Des'cription

.

-

m .S

- - _.

June 28 02 25 21.2 2.4 Kaoiki o'

28 02 46 47.0 3.0 Kaoiki.

28 02 58 06.2 2.9

28 03 35 18 0 9 2.8 Kaoiki.

28 03 36 56.7 3.7 Kaoiki. Felt at Hilo.

28 04 17 11.1 2.3 Kaoikio

28 04 55 16 0 0 2.4 Kaoikio

28 07 28 2.7 Kaoiki.28 08 00 11.4 2.6 Kaoikio

28 08 44 08.8 2.6 Kaoiki.28 10 30 19.4 2.3 Kaoiki.

28 10 37 06.0 2.3 Kaoiki.

28 12 55 12.5 2.6 Kaoiki.

28 14 59 12 0 8 2 0 3 Kaoiki o
Table 4 o --Local earth

2--Cont.lnue

....---_....-------

Time Magnitude

'! Epicenter . 

Date

(1962 J"

h m s Lat, N. LongtWo

- - -

June 28 15 17 38 0 9 2.3 Kaoiki.

28 15 20 14 0 3 2e 3 Kaoiki.

28 15 23 02.5 2.3 Kaoiki.

28 15 29 25.7 2 0 6 Kaoikio

28 17 13 00 0 3 2 0 5 Kaoikio

29 01 19 30.3 2 0 3 Kaoiki.

29 03 23 09.8 2 0 4 Kaoiki.

29 08 30 37 0 6 3 0 2 Kaoikio

29 08 39 52.8 2.6 Kaoiki.

29 14 41 53.0 3.0 20°52' 155°22' 95 km NEo of Ha1eaka1a-- 12,5 

29 16 59 00 0 0 3.5 Kaoikio

29 17 41 56 0 2 3.1 Kaoikio

29 17 47 53 0 3 2.4 KM 300

29 21 13 33.0 2 0 7 20°06' 156°39' 87 km SW. of Haleaka1a-- .12 6 5 

29 23 43 16 0 2 2.5 Kaoikio

30 07 10 56 0 5 2 0 3 19°23 0 1' 155°03 0 6' 17 km SW. of Pahoa------ 3 km 30 20 39 15.1 2.5 Kaoikio
Table 5.--Distant'earthquakes

[Times are reported in Greenwich Civil Time which is 10 hours faster

than Hawaiian Standard Time. A "c" following the time of P indicates compressional first motion; a "d" indicates dilatational

first motion. Station symbols, locations, and instrumentation are

presented in Summary 25. Magnitudes calcul.ated from the Hawaii

seismograms are followed by (HVO). Location of epicenter, origin

times, and focal depths, and magnitudes reported by other institutions are taken from "Preliminary Determination' of Epicenters"

published by the U.S. Coast and Geodetic Survey.

It is unusual to record clear. identifiable phases from the Atlantic

or the Caribbean on seis~ographs' in'Hawaii. Such a quake is listed

on April 20.

Although many seismic phenomena' from distant· sources are recorded,

few such events are felt in Hawaii. Such an uncommon event was

recorded on May 11th in the form'of-T-phase arrivals from an

underwater nuclear test (these~data'are being prepared for special

publication). In this case the T-phase was' reported felt by

residents of the coastal towns and cities of the ~ig Island]

Apr. 1

M Z eP 12:22:05.4 c

Hi Z eP 12:22:07.9 d

U PEN eG 12:37:36

U PEE eR 12:40:44

C&GS card 25-62:

4.2° S., 143.6° E.

12:11:09.2.

Near north coast of New Guinea.

h about 80 krn.

Apr. 2

M Z iP 00:24:08.3 c

A Z iP 00:24:09.0 c

D Z eP 00:24:07.9 c

U Z iP 00:24:08.8 c

Pa Z iP 00:24:10.9 c

Hi Z eP 00:24:09.8 c

Apr. 2--Continued

C&GS card 25-62:

18.6° N., 145.5° E.

00:14:50.4.

Mariana Islands.

h about 205 km.

Apr. 3

M Z eP 16:33:59.1 d

Pa Z eP 16:34:00.5 d

Hi Z eP 16:33:59.7 d

Ha Z iP 16:33:58.0 c

U PEN iG 16:45:12

U PEZ eR 16:46:56

Magnitude 5.9 (HVO).

C&GS card 26-62:

10.6° S., 164.9° E.

16:24:55.6.

Santa Cruz Islands region.

h about 36 km.

Magnitude 5.5 (Pal).

27
Table 5,--Distant~arthSUakes--Continued

Apr. 6 "'Apr~ 0 12--Continued

M Z eP 17:00:29.4 d U PEZ is 01:10:19

D Z eP 17:00:27.5 d U PEZ iSS 01:14:18

N Z eP 17:00:32.1 d U PEZ iR 01:18:15

U Z eP 17:00:32.4 d U PEE iL 01:15:32

C&GS card 26-~2: U PEN iG 01:16:04

26.7° S•• 113.2° W.

16:50:14.2. ~agnitude 7.4 (HVO) ..

Easter Island ~egion.

h about 33 km. C&GS card 28-62:

'38.2° N•• 142.3° E.

Apr. 7 00:52:47.0

Near east' coast of Honshu.

D Z eP 06:31:34.1 c Japan.

h about 68 km.

N Z eP 06:31:33.1 d ~agnitude 7 to 7.25 (Pas).

6.75 to 7.0 (Pal).

U PEZ eR 06:40:35

,Apr-~ '16

C&GS card 28-62:

10.0° N., 144.4° E. M Z iP 13:29:55.0 d

06:21:38.4.

Caroline Islands r.egion. A Z i.P 13:29:56.0 d

h about 50 krn.

Magnitude 6 (Pas). D Z eP 13:29:55.2 d

Apr. 12 N Z iP 13:29:55.4 d

M Z iP 01:02:24.2 c Ha Z iP 13:29:47.0 d

A Z eP 01:02:25.5 c Na Z iP 13:29:54.6 d

D Z eP 01:02:25.1 c Hi Z eP 13:29:56.2 d

N Z eP 01:02:25.2 c Pa Z eP 13:29:57.8 d

Ha Z iP 01:02':15.3 c U PEE eS 13:37:38

Na Z eP 01:02:24.4 d U PEZ iR 13:46:22

Hi Z eP 01:02:25.6 c ~agnitude 6.0 (HVO) •

Pa Z eP 01:02:26.1 d

28

Table 5.--Distant earthquakes--Continued " \.,

Apr. 20--Continued 'Apr~ 22--Continued

Magnitude 6.6 (HVO). Pa Z iP 04:55:14.4 c

C&GS card 31-62:

18.9° S., 169.5° E.

02:10:12.1.

New Hebrides Islands ~egion.

h about 288 km.

C&GS card 31-62:

20.6° N., 72.2° W.

05:47:55.3.

Near north coast of Haiti,

minor damage at Port-au-Prince

Felt at San Juan, Puerto Rico.

h about 25 km.

Magnitude 6.5 to 6.75 (Pas),

6.75 to 7.0 (Berk), 6.0 (Pal).

Hi Z

Pa Z

06:07:40 0 7 d

06:07:52 c

06:07:45.3 d

06:07:48.9 d

06:07:45.8 d

06:07:47.1 c

06:20:55

06:07:51.3 c

06:07:45.3 d

06:15:36

06:07:45.6 d

06:08:14

06:19:20

06:23:55

06:07:4902 c

04:55:14.9 c

06:09:52

eP

eP

eP

eP

eP

iP

iF

eP

iP

iP

z

z

z

z

z

z

PEZ iPP

PEZ iR

PEN is

FEZ eSS

PEN iL

PEZ ipP

PEZ iP

u

D

A

u

M

u

U PEZ eG 05:10:50

u

U PEN eSKS 05:03:58

U

Na Z

u

u

Pa Z

N

U

Ha Z

Hi

Hi Z

C&GS card 30-62:

15.50 N., 93.1° W.

04:45:20.3.

Near coast of Chiapas, Mexico.

h about 69 km.

Magnitude 5.25 to 5.5 (Pal)o

Apr. 23

02:18:51.8 c

04:55:16.6 d

04:55:16.6 d

02:18:52.3 d

02:18:52.4 c

02:18:54.2 c

04:55:17.1 d

02:18:56.11. c

02:18:55.9 d

02:18:51.8 c

02:18:51.5 c

04:55:17.2 d

04:55:16.8 d

eP

eP

eP

eP

eP

eP

eP

iP

iP

iP

iP

iP

iP

z

z

z

z

z

z

z

z

z

z

M

u

D

A

D

u

A

M

N

N

Ha Z

Apr. 22

Apr. 22

30
Table 5."-Distan~:~~~~~$t1~)(~~~~Continued

Apr. 23--Continued : . Apt"~ "26--Continued

U PEN iG 06:21:19 Ha Z iP 07:33:4603 c

Magnitude 6.8 (HVO). C&GS card 32-62:

17.8° S•• 179.1° W.

C&GS card 30-62: 07:26:31.3.

42.9° N•• 143.4° E. Fiji Islands.

05:58:04«19. h about 689 km.

Hokkaido, Japan.

h about 25 km. . ·Apr. 30

Magnitude 7 to 7.25 (Pas) •

7 (Pal). M Z iP 02:36:16.6 c

Apr. 25 A Z eP 02:36:17.5 c

U PEE is 16:05:00 D Z eP 02:36:16.9 c

U PEZ eSS 16:08:27 N Z eP 02:36:16.5 c

U PEZ iR 16:13:06 U Z eP 02:36:16,2 c

U PEN eL 16:10:16 Hi Z eP 02:36:16.5 c

C&GS card 32-62: U PEE iP 02:36:18 c

38.4° N., 142.5° E.

15:47:29.2. U PEE iPF 02:38:29

Honshu, Japan.

h about 56 km. U PEE eSS 02:48:16

ARr. 26 U PEE iR 02:52:33

M Z iP 07:33:41.1 d U PEE is 02:44:13

A Z iP 0'7:33:40.6 d U PEE iG 02:50:42

D Z eP 07:33:40.1 d C&GS card 33-62:

38.8° N•• 140,9 0 E.

N Z iP 07:33:40.6 d 02:26:30.0.

Honshu, Japan.

U Z eP 07:33:40.9 d h about 104 km.

Na Z iP 07:33:38.4 c Apr. 30

Pa Z iP 07:33:43.7 d M Z eP 16:24:41.8 c

Hi Z iP 07:33:44,8 c N Z eP 16:24:40.3 c

31
C&GS card 34-62:

17.9° S•• 176.1° W.

16:16:47.8.

Tonga Islands region.

h about 26 km.

Apr. 30

Air. 30--Continued

u

u

u

u

u

PEE is

PEE iG

PEE eS

PEE eG

PEZ eR

16:31:12

16:33:58

18:45:19

18:48:25

18:49:48

"May 2--Continued

N Z Tmax 03:28:52

U Z Tmax 03:28:58

Pa Z Tmax 03:28:44

Na Z Tmax 03:28:29

Hi Z Tmax 03:28:27

Ha Z Tmax 03:28:51

C&GS card 33-62:

55.90 N., 156.1° W.

02:43:25.9.

Kodiak Island. Alaska region. h about 25 km.

Start of pressure wave from

Christmas 'Island nuclear

blast; 5 mm max. seismogram

amplitude, 75 eecond period--

lasts till 20:04:00.

May 6

U PEZ ePP 19:20:42

U PEZ ePS 19:30:38

U PEZ eR 19:56:10

U PEN eSS 19:37:34

U PEN eSSS 19:41:54

U PEN eG 19:50:49

~agnitude 6.8 (HVO) •

C&GS card 34-62:

18.0° S., 176.4° W.

18:31:06.6

Fiji Islands region.

h about 135 km.

Apr. 30

M Z iP 20:51:52.9 d

A Z eP 20:51:53 0 4 d

N Z iP 20:51:52.8 d

C&GS card 34-62:

6.4° N., 124.0° E.

20:39:45.1.

Banda Sea.

h about 28 km.

May 2

M Z Tmax 03:28:53

A Z Tmax 03:28:50

D Z Tmax 03:29:00

32

. 'May '2

U PEN 19:49:00
Table 5.--Distant ~ l eattth9t,uakes--Continued • - •• I .... ,. , I I I ,I ••

May 6--Continued

C&GS card 35-62:

60.0° 5., 32.8° W.

19:00:10,2.

Sandwich Islands region~

h about 25 km.

Magnitude 7.0 (Pas), 6,75 to

7 (Berk), 7.0 (Pal).

May 7

M Z

A Z

D Z

N Z

Ha Z

Ka Z

Hi Z

Pa Z

Na Z

iF

iP

iP

iP

iP

eP

eP

eP

eP

17:49:15.1 c

17:49:15.9 c

17:49:15.0 c

17:49:15.5 c

17:49:04.0 c

17:49:09.5 c

17:49:12.6 d

17:49:16.7 c

17:49:17.4 c

. 'Ma~'lO

M Z iP 00:11:30.9 d

M Z epP' 00:11:50.0

A Z iP 00:11:31,9 d

A Z epP 00:11:50.3

D Z iP 00:11:31.9 d

D Z epP 00:11:50.1

Ha Z eP 00:11:21.5 d

l<a Z eP 00:11:27.5 d

Hi Z iP 00:11:29.5 c

Pa Z eP 00:11:29.5 d

C&GS card 35-62:

62.0 0 N., 150.10 W.

00:03:40.2.

Alaska_

h about 72 km.

Magnitude 6.0 (Berk). 4.75 to

5.0 (Pal).

u

u

PEZ iP

PEZ eS

17:49:14 c

17:57:02

May 10

U FEZ eR 01:00:46

C&GS card 38-62:

45.3° N., 146.7° E.

17:39:50.3.

Kurile Islands

h about 25 km.

Magnitude 6.75 (Pas). 7.0

(Berk). 6.0 to 6.25 (Pal).

u

u

PEZ eSS

PEZ iR

18:00:46

18:03:34

eGGS card 38-62:

41.8° St. 171.6° E.

00:27:17.5.

South Island. N.Z.

h about 54 ~m.

May 10

M Z iP 05:19:07.5 c

M Z ePP 05:20:20.6

A Z iP 05:19:13.7 c

33
Table S.--Distant·ea~th1uakes--~ontinued •• # •••••••• '. '" •••

May 10--Continued :. Max 'll--Continued

A Z ePP 05 : 20 : 2'4 •.2 N Z iP 12:14:25.6 c

N Z iP 05:19:07.7 c U Z eP 12:14:25.6 c

N Z ePP 05:20:22.7 Na Z eP 12:14:22.1 d

Ha Z eP 05:19:02.6 c Pa Z iP 12:14:27.9 c

Hi Z ePP 05:20:23.7 Hi Z iP 12:14:28.5 c

U PEZ is 05:24:42 Ka Z iP 12:14:27.1 c

U PEZ iR 05:28:10 Ha Z eP 12:14:28.0 c

U PEE iL 05:26:50 C&GS card 39-62:

14.3° S•• 170.40 E.

M Z Tmax 05:56:20 12:06:42.1.

New Hebrides Islands region.

A Z Tmax 05:56:49 h about 623 km.

D Z Trnax 05:56:52 May 11

N Z Tmax 05:56:45 M Z eP 14:21:05.7 c

U Z Tmax 05:56:43 A Z eP 14:21:05.1 c

Ha Z Tmax 05:54:20 D Z iP 14:21:05.9 d

Hi Z Tmax 05:56:08 N Z eP 14:21:03.6 c

Pa Z Tmax 05:56:28 U Z eP 14:21:05.0 c

C&GS card 36-62: Pa Z eP 14:21:07.5 c

52.4° N•• 170.9 0 W.

05:12:15.9. Hi Z iP 14:21:08.7 c

Fox Islands, Aleutians.

h about 43 km. l<a Z eP 14:21:08.6 c

Magnitude 6.0 (Berk). 5.5

(Pal). Na Z eP 14:21:12.4 d

May 11 U PEZ as 14:28:38

M Z iF 12:14:25.9 c U PEZ eSS 14:32:22

A Z eP 12:14:25 0 4 d U PEZ eG 14:34:04

D Z eP 12:14,:24.6 c U PEZ iR 14:36:04

34
Table 5o --Distantoearthquakes--Continued

May ll--Continued May 15--Continued

Magnitude 6 0 6 (HVO). Ha Z eP

C&GS card 35-62:

17 0 00 No, 99 0 7° Wo

14:11:5109 e

Near coast of Mexico o

h about 25 krn.

Magnitude 7 0 0 (Pas), 7 4 0 to

7°.25 (Berk).

u

u

u

u

PEZ iP'

PEZ ipP

PEZ ipP

PEZ eR

05:35:54 c

'05:36:45

05:39:19

06:01:10

PEN iSS '05:50:43

May 11

M z Tmax 20:39:56

u

u

PEN is 05:46:08

A

D

z

z

Trnax 20:39:53

Tmax 20:39:54

u

u

PEN iSSS 05:54:26

PEN iG 05:56:49

N Z

u Z

Pa Z

Hi Z

Ha Z

Tmax 20:39:54

Tmax 20:39:54

Trnax 20:39:45

Tmax 20:39:43

Tmax 20:49:17

C&GS card °38-62:

7 0 30 So, 128.30 Eo

05:23:45 0 9.

Banda Sea.

h about 34 kme

Magnitude 7.0 to 7.25 (Pas), o 7. 5 (Berk).

May 16

C&GS card 40-62:

13.4° So, 167.30 Eo

17:33:05.50

New Hebrides'Is1ands o

h about 35 km o

Artificial T-phase--probab1y

caused by nuclear explosion;

felt on northeast coast of

Hawaii Island, Hawaii o

No preliminary C&GS 1istingo

May 15

u FEZ eR 17:55:48

Hi Z

M

A

D

N

z

z

z

z

iP

eP

eP

eP

iP

05:35:54 0 4 c

05:35:5500 c

05:35~5507 c

05:36:01 0 2 c

35

. May 19

M

A

D

N

u

z

z

z

z

z

iP

iF

iF

iP

iP

15:07:31 0 2 d

15:07:29.9 d

15:07:31 0 1 d

15:07:30.1 d

15:07:32.5 d
T ,

May 19--Continued . 'May21--Continued

Pa Z iP 15:07:31.3 c Hi Z eP 12:16:02.5 c

Hi Z eP 15:07:31.4 c Pa Z iP 12:16:09.0 d

Ka Z eP 15:07:29.9""0 u PEZ iP 12:16:10 d

Ha Z iP 15 : 07 : 40 •2 d "" u PEZ iPP 12:19:46

u PEZ iF 15:07:34 d u PEZ eS 12:26:52

u FEZ is 15:15:01 u PEZ ePS 12:28:34

tJ PEZ iR 15:22:42 u PEZ eSS 12:33:34

u PEN iScS 15:17:20 u PEZ eG 12:40:50

u PEN iSS 15:18:34 u PEZ eR 12:45:22

Magnitude 6.8 (HVO).

C&GS card 38-62:

17.2° N., 99.5° W.

14:58:13.3.

Near coast of Mexico.

h about 20 km.

Magnitude 7.0 to 7.2S"(Pas).

Ha Z

PEN eG

21:23:12.5 c

21:23:12.5 c

21:23:12.1 c

21:23:12.5 c

21:23:12.4

21:23:14.3 d

eP

eP

iP

eP

iP

iF

z

z

z

z

z

M

A

D

N

u

Pa Z

~agnitude 6.6 (HVO).

C&GS card 39-62:

37.3° N•• 96.0° E.

12:02:50.6.

Chinghai Province, China.

h a"bout 25 km.

Magnitude 7.0 to 7.25 (Pas), . 6.5 to 6.75 (Pal).

. 'May' 21 - .

15~19:45

12:16:06.4 d

12:16:09.7 d

12:16:04.7 d

12:16:01.9 d

12:16:09.2 d

12:15:59.4 c

eP

iP

eP

iP

eP

eP

z

z

z

z

z

u

M

A

D

N

u

May 21

Ka Z eP 12:15:58.7 d

Hi Z

Ka Z

iP

eP

21:23:15.3 c

21:23:15.5 c

36
Table 5.--Distant ear~h$u~~es--Continued

Mal 21--Continued . 'May'22--Continued

Ha Z iP 21:23:18.5 d U Z ipP 08:15:44.3

U PEZ iP 21:23:14 c Pa Z iP 08:15:15.7 d

U PEZ ipP 21:24:43 Pa Z ipP 08:15:46.3

U PEZ isP 21:25:24 Hi Z eP 08:15:17.3 c

U PEE is 21:29:24 Hi Z ipP 08:15:45.5

U PEE isS 21:31:38 Ka Z eP 08:15:16.4 d

U PEE iSS 21:32:42 Ha Z iP 08:15:15.8 d

U PEN iG 21:34:2~ Ha Z ipP 08:15:34.3

Magnitude 7.1 (HVO) • u PEZ iF 08:15:14 c

eGGS card 39-62: U PEZ ipP 08:15:45

20.00 S., 177.50 W.

21:15:31.0. U PEZ isS 08:23:06

Fiji Island region.

h about 379 km. U PEZ iSSS 08:27:43

Magnitude 6.75 to 7.0 (Pas) •

U PEZ eR 08:28:48

May 22

U PEE is 08:22:13

M Z iP 08:15:13.2 d

U PEN isSS 08:·26:42

M Z ipP 08:15:44.1

C&GS card 39-62:

A Z eP 08:15:13.2 c 12.3° S., 166.6° E.

08:06:38.7.

A Z ipP 08:15:44.0 Santa Cruz Islands.

h about 151 km.

D Z eP 08:15:13.3 c Magnitude 6.5 to 6.75 (Pas) •

5.75 to 6.0 (Pal).

D Z ipP 08:15:42.8

N Z eP 08:15:13.4 c May 22

N Z ipP 08:15:43.8 U PEZ eS 22:22:56

U Z eP 08:15:13.7 c U PEZ eSSS 22:29:29

37
Table 5.--Distant ··e~~~~Q.~~~~~~.~.~ontinued

C&GS card 44-62:

26.3° S., 113.7° W.

21:52:50.0.

Easter Island region.

h about 25 km.

C&GS card 42.62:

44.6° N•• 129.5° W.

04:57:46.2.

Off northern co~st of

California,

h about 25 km.

C&GS card 42-62:

51.8° N., 177.1° W.

21:00:16.4.

Andreanof Islands, Aleutian

Islands.

h about 25 km.

22:22:52

Tmax 21:43:54

Tmax 05:40:03

PEZ iR

May 29

Ha Z

.. May' 25

U PEZ eP 04:27:56 c

U PEZ eS 04:34:11

U PEE eScS 04:37:26

U PEE ePKS 04·:42 :21

C&GS card 42-62:

20.7° S., 174.3° W.

04:19:57.0.

Tonga Islands.

h 'about 281 km.

. 'May' 30

Ha Z

May 22--Continued

U PEN eG 22:29:00

C&GS card 43-62:

5.5° S., 152.0° E.

22:03:36.0.

New Britain.

h about 100 km.

May 24

U PEZ eP 04:31:08 d

U PEZ ePP 04:32:43

U PEN eS 04:36:52

U PEN eL 04:39:29

U PEN iR 04:41:08

M Z Tmax 05:09:49

A Z Tmax 05:09:45

D Z Tmax 05:09:53

N Z Tmax 05:09:41

U Z Tmax 05:09:59

Ha Z Tmax 05:09:06

Hi Z Tmax 05:09:28

Pa Z Tmax 05:09:38

C&GS card 41-62:

49.1° N., 129.4° W.

04:24:49.8.

Vancouver Island . ~eg~on.

h about 25 km.

38
Table 5.--Distant 'aarth$uakes--Continued I • ~. ••

May 31 'Mal'31--Continued

M Z iP 06:37:52.4- d N Z iP 0'6: 42 :18.6 d

M Z isP 06:38:56.4 ' U Z iP 06:42:18.7 d

A Z iP 06:37:52.9 d Pa Z iP 06:42:19.8 d

D Z iP 06:37:52.4 d Hi Z iP 06:42:19.4 d

D Z isP 06:38:56.7 Ka Z iP 06:42:17.2 c

N Z iP 06:37:52.6 d Deep. northwest source.

U Z iP 06:37:52.8 d ' 'June 2 ,

..

Ha Z iF 06:37:44.7 c U PE~ eL 12:41:05

Ka Z iP 06:37:49.5 d M Z Tmax 13:11:17

Hi Z iP 06:37:53.9 d A Z Tmax 13:11:29

Pa' Z iP 06:37:54.3 d D Z Tmax 13:11:28

Na Z eP 06:37:52.8 d N Z Tmax 13:11:40

U PEZ iP 06:37:52 c U Z Tmax 13:11:34

U PEZ iPP 06:40:07 Ha Z Tmax 13:10:52

U PEE is 06:45:33 Hi Z Tmax 13:11:06

U PEN iG 06:52:07 Pa Z Tmax 13:11:30

C&GS card 41-62: C&GS card 45-62:

22.1° N., 142.6° E. 49.9° N., 129.8° W.

06:28:26.2. 12:26:09.6.

Volcano Islands region. Vancouver Island region.

h about 257 km. h about 25 km.

Magnitude 6.5 .(Pas). Magnitude 5.75 (Pal).

May 31 June 2

M Z iP 06:42:18.4 d U PEZ eR 17:45:49

A Z iP 06:42:18.6 d C&GS card 44-62:

29 •8° N•• 130.6° E.

D Z iP 06:42:18.0 c 17:15:08.7.

Kyushu t Japan.

h about 15 km.

39
Table 5. --Distan~ :~~~~~$~~~~,~,~~.Continued

June 6 . 'June '11

U PEN eL 18:04:13 M Z eP 04':42:43.0 c

Ha Z Tmax 18:32:02 A Z eP 04:42:43.5 c

Pa Z Tmax 18:32:03 N Z iP 04:42:43.6 c

eGGS card 44-62: Pa Z eP 04:42:41~5 c

39.1° N•• 123.1° W.

17:50:08.6. Hi, Z iP 04:42:41.3 c

California.

h about 23 km. Ha Z iP 04:42:44.9 c

Magnitude 5.25 (Pas) •

C&GS· card 46-62:

June 8 19.6° S •• 177.7° W.

04:35:00.6.

M Z iP 01:39:13.7 d Fiji Islands.

h about 370km.

N Z eP Ol:39:13.~ d

, 'June '14

U Z iP 01:39:13.3 d

M Z iP 08:00:01.2 d

Hi Z iP 01:39:16.3 d

A Z eP 08:00:02.0 d

Ha Z iP 01:39:18.6 d

D Z eP 08:00:01.8 d

eGGS card 45-62:

18.1° S•• 178.4° W. N Z iP 08:00:01.6 d

01:31:59.9.

Fiji ~s1ands. U Z eP 08:00:01.4 c

h about 603 km.

Ha Z iP 07:59:49.5 c

June 11

Hi Z iP 07:59:55.0 c

U PEN eL 01:08:17

Pa Z eP 08:00:01.7 d

Pa Z Tmax' 01:37:53

U PEZ iP 08:00:01 d

C&GS card 47-62:

49.7° N•• 129.30 W. U PEZ is 08:06:43

00:52:47.3.

Vancouver Island region. U PEZ iR 08:12:05

h about 25 km.

U PEE iG 08:09:57

40
- June l4--Continued

C&GS card 45-62:

54.3° N•• 169.1° E.

07:51:51.0.

Aleutian Is •• Near Islands.

h about 34 km.

Magnitude 6.0 to 6.25 (Pas"). -

5.75 (Berk).

June 14

M Z iP 08:03:55.9 c

A Z iP 08:03:56.4 c

D Z eP 08:03:56.6 d

N Z eP 08:03:56.3 c

U Z iP 08:03:56.0 d

Ha Z iP 08:03:43.5 c

Hi Z iP 08:03:54.9 c

Pa Z eP 08:03:56.0 c

U PEZ iP 08:03:56 c

U PEZ is 08:10:36

U PEE iG 08:14:11

C&GS card 45-62:

54.2° N•• 169.3° E.

07:55:48.9.

Aleutain Is •• Near Islands.

h about 56 krn.

Magnitude 6.0 (Pas).

June 16

M Z it> 06:39:39.8 d

egGS card 46-62:

0.2° S•• 122.8° E.

06:27:29.8.

Celebes region.

h about 177 km.

June 17

M Z eP 22:35:44.3 d

A Z eP 22:35:45.0 d

D Z eP 22:35:44.7 d

U Z eP 22:35:45.7 d

Hi Z iP 22:35:35.6 c

Ka Z eP 22:35:31.0 c

C&GS card 46-62:

51.7° N•• 177.0° E.

22:28:04.1.

Andreanof Islands, Aleutian

Islands.

h about 22 km.

. 'June "18

M Z iP 23:52:17,6 d

Hi Z eP 23:52:20.5 d

Ha Z iP 23:52:15.7 d

U PEE is 00:00:09

U PEN eG 00:07:01

U PEZ eR 00:08:33

C&GS card 48-62:

4.80 S., 151.8° E.

23:42:31.3.

New Britain region.

h about 47 km.

Magnitude 6.75 (Pas).

June 23

M Z iP 09:55:50.6 d

A Z iP 09:55:51.0 d

D Z eP 09:55:50.9 d

41
Table S.--Distant ea~~~$~~~~s--Continued

"," June 23--Continued

C&GS card 49-62:

24.30 N•• 122.60 E.

11:10:23.3.

Off coast of Formosa.

h about 33 km.

Magnitude 5.75 (Pas). 5.5 . (Berk).

C&GS card 49-62:

19.10 N•• 121.40 E.

09:58:26.0.

Near coast of Luzon. Philippine

Islands.

h about 40 km.

Magnitude 5.9 (HVO).

C&GS card 50-62:

16.50 N•• 122.00 E.

19:29:51.0.

Coast of Luzon. Philippine

Islands.

h about 40 km.

20:06:15

19:41:51.3 c

19:41:51.1 c

19:41:51.4 c

Z eP

Z eP

Z eP

PEZ eR

D

u

M

N

June 30

'June 25

M Z eP 11:22:12.9 c

A Z eP 11:22:11.9 c

N Z eP 11:22:10.9 c

Pa Z eP 11:22:13.3 d

U PEZ iP 11:22:09 c

U PEZ eR 11:44:33

U PEN is 11:31:55

June 23--.Continued

N Z eP 09:55:50.5 d

U Z iP 09:55:50.8 d

Ha Z iP 09:55:43.2 d

Ka Z iP 09:55:47.0 d

Hi Z iP 09:55:52.1 d

Fa Z iP 09:55:52.9 d

U PEZ iP 09:55:51 d

U PEZ iR 10:16:33

U PEE ePP 09:57:36

U PEE eS 10:05:05

C&GS card 48-62:

25.70 N., 128.50 E.

09:44:37.7.

Ryukyu Islands.

h about 36 km.

Magnitude 5.75 (Berk).

June 23

M Z eP 10:10:25.8 d

A Z eP 10:10:25.4 d

D Z eP 10:10:24.9 d

N Z eP 10:10:24.8 d

U Z eP 10:10:24.8 c

U PEZ eP 10:10:25.3 d

Hi Z eP 10:10:23.8 c

42
The following persons or ,agencies .reported "'felt'" earthquakes

during the second quarter, 1962. Their" assistance is, gratefully

acknowledged.

North Hawaii

Mr. Pawa

Mrs. Lindsey

Mrs. Walker

Miss Tully

Dr. Tabrah

Honokaa Police

Mrs. C. Hansen

Mrs. Eklund

Mrs. Stewart

Mro Ferguson

Mrs. Christianson

Hilo region

Miss Yamaguchi

Mr. MacDonald

Mr. Donohoe

Mr. Williamson

Mrs. Wong

Mrs. Kuntz

Mr. Sadamot·o

Miss Bergsten

Mr. Kumuhaki

Mr. Vaughn

Miss Phirite

Mrs. Kaneshiro

Miss Ah Sing

Mr. Martin

Mrs. Breyton

Mrs. Pierce

Kau region

Mr. Schattauer

Mrs. Walters

Mrs. Schattauer

Mrs. Street

Mrs. Billings

Miss Cataluna

Mr. Coram

Mrs. Elarianoff

Mr. Araujo

Mrs. Isbell

43

Kilauea summit region , -

Mrs. Hongo

Miss Cruz

Mrs. Hagnauer

Mrs. Fraser

Mrs. Hansen

Miss English Mrs. W'entworth

Mrs. Yong

Mr. Ayres

Mr. Mist

Mrs. Mist

Mrs. Duncan

Dr. Eaton

Mr. Yamamoto

Mrs. Ault.

Kona coast

Mr. Ladd

Mr. Sutherland

Mr. Glass

Miss Greenwell

Mr. Tanaka

Miss. Wallace

Mr. Yeaman

Mr. Paris

Puna

---- Mr. Edwards

Mr. R. He

Mr. Vaughn

Mr. Warner

Mrs. Green

Central Hawaii

Mr. Haa

Mr. Kowahara

Mr. Machado

Mrs. Lindsey

Mr. Hansen

Mr. Walker
An unusually large number of"persons .visited the Observatory

during the second quarter. 1962 0 ' Many "of them were, goi,ng to or

returning from the International Symposium"on Volcanol,ogy in Tokyo.

These visitors were:

\

)

Dan Ao Davis. Milton Hackett. G~ Fo Worts, Jack Rosenau, U.S.

Geological Survey, Ground Water Division.

Thomas E. Chase. UoS. Bureau 'of' Commercial Fisheries~

Stuart M. Smith, Depto' of Earth Science, Scripps Institution.

Donald Wise, Dept Q of Geology', Franklin and' Marshall College.

Victor Vacquier. Scripps tnstitution~

George Short Jro. Scripps Institution.

Lo Radley Squier, Shannon and Wilson. Inc., Seattle.

Robert Eppley, U0 S Q Coast and" Geodetic" Survey, Honolulu

Observatory 0

Kelchi Kasahara. Earth Research Institute, University of Tokyo.

Robert Ao Stonely. UoSo' Coast· and Geodetic Survey. Washington, D.Co

Ao S. Furumoto. Institute of Geophysics, University of Hawaii.

M. Bordner, Hawaii State Economic Research and Development

Commission.

Hatten Yoder, Jr o • Geophysical Laboratory 0

C. E. Tilley, Cambridge, England G

J. Fo Schairer. Geophysical Laboratory&

Ao R~ McBirney, Scripps Institutionc

Co Ro Robson. Seismic Research Unit. U.CoW.I., Trinidad.

Jerry McLaughlin, Donald J. Murray, Eugene E.' Moe', Harry Carles,

Mell Baker. U. So Geological Survey.' Topographic Division.

E G F41 Osborn, Penn-. State University. .

Ann Palm, University of California, Berkeley.

Wo T. Cronenwett. Electro-Mechanics·Co~. Austin, Texas.

Bernard Geze, Institut National Agronomique. Paris.

J. Noetzlin, CNRS de France,-Geneva, Switzerland 0

J o Lo Kulp, Lamont'Observatoryo

Robert Decker, Dartmouth College. N.H.

Pierre Evrard, Universite de 'Liegeo

Jerry Po Eaton, UoS Q Geological'Survey, Crustal Studies Branch.

Howard Ao Powers, UoS o Geological Survey, Denver. Colorado 0

Allan Wilson, University of Queensland. Brisbane.

Ko J o Murata. UoS e Geological'Survey, Menlo Park.

Irving Friedman, UGS o Geological Survey, Washington and Denver e

Roland VonHuene, Naval Ordnance. China Lake. .

Kumizi Iida, Institute of Earth Sciences, Nagoya University.

Allen Loomis, Jet PropUlsion Lab., Pasadena.

Harry Smedes, Robert Fournier. UoS G Geological'Survey, Washington.

Willard Ho Parsons, Wayne State University.

Robert L. Smith, Branch Qf Field Geochemisty and Petrology. U.S.

Geological Survey, Washingtono

Roy Ao Bailey, UGS o Geological Survey, Washington.

George Mo Brownell, University of Manitoba, Winnipeg.

Hans Ao Bomke, USASRDA, Fort Monmouth. N. J. I~ Ao Balton, USASRDA, Fort Monmouth. No J.

Charles F Q Sebastian. Western Geophysical CO~~ Los Angeles.

Thomas LQ Slaven. Western Geophysical Co''. Los Angeles.

Michael N~ West. Alfred University, Alfred, N.Y.

Heinz Ho Grote. USASRDA. Fort Monmouth, N.Jo

44
Geology:

UNITED STATES

DEPARTMENT OF THE INTERIOR

,- GEOLOGICAL SURVEY

HAWAIIAN VOLCANO OBSERVATORY

SUMMARY Z7

July, August, and September, 1962

By

Arnold T. Okamura, George Kojima

and Akira Yamamoto

and

Direction of First Motion from Four Earthquakes

from a Single Focus

By Harold La Krivoy

Issued August 1964

Observatory staff

',\'., :~.'". Geochemistry~

J. G. Moore (Scientist-in-Charge)

D. H. Richter (transferred to Denver in July)

C. K. wentworth

Geophysics:

G. Kojima

R. Y. Koyanagi

H. L. Krivoy

A0 T. Okamura

w() U0 Ault (transferred to

Washington in July)

RoT 0 Okamura

Support~

Joe 0 Forbes

W0 H0 Francis

Bo J f) Loucks

Ao Yamamoto
Contents

Page

Direction of First Motion from Four Earthquakes from a Single

Focus by Harold L. Krivoy--------------------------~---~----------1

Chronological summary-----------------~-~---------------------------3

Tilting of the ground around Kilauea caldera------------~-----------4

Seismic summary----------------------------------------------~------6

Persons or agencies reporting "felt" earthquakes during

the quarter-------------------------------------------------------49

Illustration

Figure 1. Map of the island of Hawaii showing seismograph stations

operated by the Geological Survey and localities

mentioned in the text---------------------------------- 7

Tables

Table A. Data on four 1962 Hawaiian earthquakes-------------------- 2

1. Tilt coordinates at Uwekahuna Vault----------------------- 5

2. (Long-base tilt data not collected this quarter)----------

3 · Numbers of earthquakes and minutes of tremor recorded

on seismographs around Kilauea caldera-----------------.· 8

4. Local earthquakes recorded by seismographs of the

u.s. Geological Survey----------------------------------13

5. Distant earthquakes---------------------------------------34
HAWAIIAN VOLCANO OBSERVATORY SlJMl'.1ARY 27

By A. T. Okamura, George Kotiima, and Akira Yamamoto

Direction of First Motion from Four Earthquakes from a Single Focus

By Harold L. Krivoy

Table A presents data on four earthquakes: epicenter, focal depth,

origin times, compressional wave travel times, first-motion

directions, and magnitudes. The first two quakes were felt weakly only

in the community of 1tVolcano." The second two were felt island-wide.

This size difference is also reflected in the questionable timing of

the first arrival at such distant stations as Maui. In quakes I and II,

the Maui instruments evidently failed to record the earliest compressional

arrival.

Thanks are due to the following Hawaii residents who reported feeling

the four quakes:

1st ,quake--Miss English (Volcano)

2nd quake--Miss English, Mrs. Duncan (Volcano)

3rd and 4th quakes--Miss English, Mrs. Duncan, Mrs. Fraser, Mrs. Hansen,

Mr. Mist, Mr. Francis, Mr. Ayers, Mrs. Wehrsig, Dr. Wentworth,

Mr. Koyanagi, Mr. Yamamoto, Dro Moore, Mr. Krivoy (Volcano or

National Park); Mr. and Mrs. Baldwin, Mr. Zuprick, Mr. Wilson,

Mr. Elliot, Mrs. Ingledue, Miss Nitta, Mr. Ho (Hilo area);

Mr. Hansen (Central Havlaii); Kulani Honor Camp personnel; Mrs.

Linsey (North Kana); Mrs. Walters, Mrs. Kiva (Kau region) j Honokaa

Police, Mrs. Christensen (North Hawaii).

With only one exception, residents who reported the third-quake also

reported the smaller fourth quake. These quakes originated about 25 kIn

beneath the community of Volcano, which probably accounts for the

numerous reports from volcano, Hilo, National Park and Kulani Honor Camp.

Of special interest is the report from Mrs. Lindsey of Puu Anahula--a small

community near Puu Waawaa where deep Kilauea quakes are surprisingly

well-felt. In this case (as in others) Mrs. Lindsey reported quakes not

felt by equally perceptive observers in parts of Kona and Kau much closer

to the epicenter.

The pattern of first-motion direction is identical for the first

three quakes, and is reversed for the last quake of the group. The

third and fourth quakes come within 3 minutes of each other from essentially

the same focus; they suggest complex strains in the focal region because

every discernible first-motion of IV is opposite to its counterpart in I,

II, and III.
°l:u.OJ.e f\..

Magn

, First motion of P p-O, compressional wave (? magnitude 

- travel time great for rec

I II III IT I II III ·N I II 

Mauna Loa _. - - + 4.8 4.8 ·4.8 4·.8 2·9 2·9 

Ahua - - - + 4.4 4.1- 4.2 4·3 ? 2·9 

.-

Desert . _. - - + 5·2 5.1 5·1 4.9 ? '? 

North Pit - - - + 4.0 4.0 4.1 3·9 ? ? 

Uwekahuna - - - + 4.1 3·9 4.1 3·9 3·1 3·1 

Hila + + 7 -7 6.2 6.2 6.1 6·3 3·0 3·0 

Pahoa +? + +.?!t •? 6.1 5·9 6.0 5.9 3·0 3·0 

---I

Naalehu - ? -7 i +7 9.4 -- 9·1 9.6 9.4 2.8 2·7 

I

I

Kamuela 7 ? ? I ? 11.67 13·1? 11·9 11.6 2.8 3·1 

t

Maui ? ? I -1 I 28.07 28.77 24.0 24.0 3·1 2·9 

_.

I

i

I

:

I = 11:51:41_9 HST, Jan. 3, 1962

II = 18: 16: 41.8 HST, Jan · 3, 1962 .

III = 07:22:49.7 EST, Sept. 11, 1962

IV = 97:25:27.7 HST, Sept. 11, 1962

Epicenter: N., 155°14.0' w.

Depth: 25 kIn
First-motions plotted on the station location map do not fall into

the quadrant pattern typical of strike-slip faults; the region of

compression can be separated from that of rarefaction by a single line

through the epicenter with an azimuth between about No 35° W" and No 800w.

The uncertainty could be materially reduced by additional stations at

such sites as Puu Waawaa, Makaopuhi or Kalapanaa Apparently the' fault

movement was predominantly dip-slip in .all four quakes, the southwest

side being downthrown during the first three and upthrown during the

fourth 0

Because of its small size, this group af four similar quakes has

proven convenient as an illu,stratian of the needs and possibilities in

analysis of first~motion data prOVided by the Volcano Observatory

seismic net" In 6 years of modern recording we have observed about

six distinctive earthquake families 0 Some of these appear to be

endemic and are still being recorded; others, once prolific, seem now

to have ceased 0 Some of these families consist of swarms of thousands

of quakes; some come by the hundreds 0 We hope to be able to' review

and to analyze each such group in an effort to learn more about the

dynamics of Hawaiian volcanism 0

Chronological summary

Inflation of the summit region of Kilauea appears to have been

somewhat more rapid during the third quarter of 1962 than during the

previous 6 months. Tilting at Uwekahuna Vault (table 2) averaged

12 urad/month toward N(> 50° W0 during the third quarter as compared

with 7 urad/month and 3 urad/month in the same direction, during the

first and second quarters, respectively 0

Small shallow earthquakes at Kilauea caldera (table 3) continued

through the third quarterj the average daily counts were 52, 64" and

62 for July', August, and September, respecti.vely.

Average daily cOtmts of earthquakes from the source about 30 kIn

beneath Halemaumau were 6 far July, 3 for August, and 2 for September.

Earthquakes of this group were felt in the region of Kilauea caldera

and elsewhere on Hawaii on July 6, July 14, July' 27, and September 27.

The frequency of aftershocks of the magnitude 6,,1 Kaoiki earthquake

of June 27 and of small earthquakes from the adjacent part of Kilauea's

southwest rift zone decreased. steadily during July from 112 on the 1st

to 1.5 on the 31st 0 The average daily count of these earthquakes decreased

from 31 for July to 12 for August and to 8 for September 0 Earthquakes

from this source were felt in Hila on July 15 and in Hila, Pahoa, and

Naalehu on July 270)

An unusual variety of large local quakes from scattered sources

was recorded during July, and many of them were felt (table 4) 0 The

largest, from a shallow focus 14 kIn west~northwest of Kealakekua,

had a magnitude of 409 and was felt over the entire island at 23h53m

on July 23 () Loose objects were overturned and there was alarm in

Kona; but no serious damage was reported. 0 A magnitude 4c> 5 shock from

3_
a shallow focus 8 kIn west...southwest, of Kealakekua was felt in Kana at

23h 53m on July 230 The earthquake felt over the entire islarld at

7n3BD1 on July 14 had a magnitude of 400 and originated 18 kIn

south-southwest of Waikii at a depth of about 10 kmo

The largest eart,hquak.e du.ring A'ugust occurred about 8 kIn deep

and 11 kIn southeast of the Ahua seismometer at 16h59Dl on the l8tho

It had a magnitude of 406 and was felt over the entire island () A

magnitude 400 earthquake from a focus 14 kIn northeast of Naalehu and

about 8 km deep was felt from Hila to Kona at 23h3(jIl on August 170

The largest earthquake du,ring September (magnitude 401) originated

25 km south-southeast of Apua Point and was felt in Hila and the

Kilauea caldera region at 3h 59ID on September 8. Two earthquakes from

a focus 9 km northeast of Uwekahuna and 25 kIn deep were felt over the

entire island on September 11. The first, at 7h23m, had a magnitude

of 307; the second, at 07h25ID, had a magnitude of 3.60

Minutes of deep tremor recorded during September greatly exceeded

that recorded during any other month since October 19610

Tilting of the ground around Kilauea caldera

Tilting of the ground around the summit of Kilauea is monitored

daily by a short-base water-tube tiltmeter in Uwekahuna Va~lt (table

2

0

), and at irregular intervals it is measured on a regional scale by

means of a network o;f' field tilta:>bases and a portable water-tube

tiltmeter~ The attitude of the ground surface at each tilt-base is

reported in terms of north"losOl;4tb~ and east-west tilt coordinates. Both

coordinates at each station were aroitrari1y set equal to 500 when

measurements at that station were beguno Increasing tilt coordinates

correspond to northward and eastward t.ilting of the earth t 5 surface,

that is, to a relative subsidenoce t'oward the north and east (I A I-unit

change in coordinate corresponds to a tilting of 1 microradian (1 mm

per kIn) in the direction indicatedn

The field tilt~bases were not occupied during this third quarter,

1962u

4
Table 1.--Ti1t coordinates at Uwekahuna Vault, July, August, and September,

1962

Date N-S EQDW Date N-S E-W

July 1 440 529 Sept 0 2 449 516

8 440 527 9 452 513

15 442 530 16 454 511

22 444 526 23 456 505

29 444 525 30 4'57 505

Aug 0 5 446 523

12 446 520

19 446 522

26 447 520

I)

5
Seismic summary

Events recorded by the U.S. Geological Survey seismograph network

in Hawaii fall into two categories: local earthquakes and tremor

originating in the region of the Hawaiian Islands, ~sually within 100

kIn of at least one seismograph, and distant earthquakes originating

more than 3,000 kIn from Hawaii. As an index of seismic activity at

Havlaiian volcanoes, daily counts of earthquakes and minutes of tremor

recorded by seismographs in Hawaii are listed in table 3. The

earthquakes are separated into groups on the basis of region of origin

as determined by analysis of records obtained daily at the Observatory

(U, M, A, D, N). Earthquakes of magnitude 2.5 or greater are

generally sufficiently well recorded to be located with greater

precisionj they are listed indiVidually in table 4. Data on

identifiable phases from distant earthquakes are listed in table 5.

Locations of the seismograph stations are shown on figure 1,

and essential data on the stations were given in Summary 25.

6
I'.·

10· --+-0----

EXPLANATION

A S",mooraph Stotlo"

• Town or locollt,

10 I.....

Co"'our I"'.rvol 1,000 f••t

Oe'v,", i, .'.11 _ "'"

-------t------,•. .,,-

Figure l.--Map of the island of Hawaii showing seismograph stations

operated by the Geological Survey and localities mentioned in

the text. Epicenters of local earthquakes are given in terms

of geographic coordinates, which are indicated at the edges of

the map7
Table 3. of earthquakes and minutes of tremor recorded on

seismographs. U, M, A, DI and N around Kilauea caldera

Tremor is separated into three deep, intermediate, and shallow, on the b

amplitudes on seismographs in the summit Unless otherwise stated, tremor 

be associated with movement of magna within the central complex of Kilaueao

Earthquake categories Halemaumau rock slides, which are detected by the charact

they produce on the North Pit seismograph; shallow earthquakes in the Kilauea cald

earthquakes along the SWo rift zone of Kilauea and the adjacent portion of the Kao

earthquakes along the eastern half of Kilauea t s east rift zone; earthquakes from a 

30 km beneath Halemaumau; shallow earthquakes along the Kalapana Trail (SE., flank 

15 km Wo of Kalapana); and earthquakes from other regions: Kana, Mauna Kea, etc.

Tremor

(in minutes). " Earthquakes

Date

(1962 )

Hale- SW. rift Eastern Hale- Kala...

Inter- maumau Kilauea and East maumau pana 

Deep mediate Shallow slides caldera Kaoiki rift 30 km Trail

July 1 CWe3«ee:::Jcaca_ 1 83 112 2 9 1 1 

2 4 9 105 86 2 4 1-'-=«=>_""""

3 C2e:te:::.c::.CDc:. 2 .. ew 2 36 53 ____ e:::t 4 1 1 

1 

4 .. .. e:::tcz,;,c::o-=-c:::!c:8 89 90 22 7 __ c:::II",=C::>_

5 _eno-=:::csc:»_ 2 86 77 1 6

6 c::::.. ... 2 c::>""''''''t= ___ 48 37 4 12 I-_c::>e::te::tc:::=

7 e:;,e;,,_e;::::,-.a.03 ... .. e:.::t tl:Je=t c:.:ac::::Deac::-2 .. .,,-=tc= ... 37 33 3 17 """ ..... e>.,.. .... t:t ...... 2 

8 Clc:ac:.c:a_C8 c.:a&:l-=ae:::=--=--=:a .. _ ..... .. c:;::l 42 29 3 5 !=' __ 1 

9 37 ca .... Il.':'S) ...,_ 1 31 33 __ ... _ 9 __ .... =c:::>"'"'CC> 1 

10 .. .... .. .. ae.,_ ... _ ..__ 33 26 3 5 __ """'t:> ___11 3 .. _-=t_ .. _e;;e_."."ClO_ ------- 58 26 2 7 2

12 .,...,..,,--- 8 c:. ___ ..ca_ ------- 51 38 1 3 1-------

13 c::a_ ... _ .... ..-........ __ c:a"-=:I' __ t=- __ ea _____ 41 26 4 4

14 ------ 3 -----..- -..,----.. 41 31 12 2 ------- 1 
Table 3.--Numbers of earthquakes and minutes of tremor recorded on

seismographs U, MJ A, D, and N around Kilauea caldera--Continued

Tremor. Earthquakes (in minutes)

Date

(1962) Hale- sw. rift Eastern Hale- Ka1aInter- maumau Kilauea and East maumau pana 

Deep mediate Shallow slides caldera KaoilU rift 30-km Trail . '

July 15 _.._-- ------- --_.. 1 69 37 2 13 ------- 1 

16 ----- -_..--_.. --_...._-- ----.-.. 68 34 3 3 ------ 1 

17 3 -----..- --...._---- .-_-_.. 30 11: 3 5 -------- 1 

18 ----- _.. -----_..- ------ 36 26 1 8 ------- 1 

19 ----- ----..-- --------- ----.._- 38 20 1 1 ..----_..

20 ....---- 3 --------- _.._....- 22 22 3 1 - ------- 1 

21 ----- ---_..---- ---_.... 38 23 2 3 ..- 1 

22 ----- - ..----- --_.-_--- -_..--- 66 17 --_.. 6 2 1 

23 .. _....--.. --------- 1 83 39 ..--- I ..--- 1 

-24 ----.. ----...... _.. .. 56 23 --_.. 4 ------- 1 

25 ---.... _....- ....- -------- -_..--- 37 32 1 1 1 1 

26 ..---- .. -------- -----.. 60 46 .-_-- 1

27 ----- .._-..-_.. -_...... .. --_.. .. 43 33 16 22 1

28 ....-..- ------- ----_..-- 1 38, 22 5 4 -------

29 ----- -------- ..------ 49 28 2 3 .... ..- 1 

3° ----..- 6 .._...._-- ..--...... 24 20 10 3 1 1 

31 2 3 ------_..- 1 68 15 2 1 1

Aug. 1 ------ ------ -_.. ..-- ---_.... 53 22 1 ------ ----....- 1 

2 3 ......_-- 2 _.. .. 34 18 5 5 --_.. __ ..

3 --_...- 5 2 ..-.._.... 50 15 1 ..-_....- ----_..- 1 

4 ----- 2 .. ..-..- 1 45 19 4 6 2

5 ------ -..---- ...._-_....- .._.. 38 15 3 4 _... __..

6 ----- ------ _..-....--- 1 50 8 -...--- 9 ------..

7 ----- ------ 2 1 63 9 ....__ ... 4 -_..........

8 ----- ------ -------..- .._----- 75 16 _......- 5 ----...- ..
Table 3 ....-Numbers of earthquakes and minutes of tremor recorded on

seismographs U, M, Az D, and N around Kilauea caldera...-Continu

Tremor Earthquakes

(in minutes)

Date

(1962) Hale co SW. rift Eastern Haleco Kala=

Intero:=> maumau Kilauea and East maumau pana 

Deep mediate ShaJ.low .slides caldera Kaoiki rift 30 kIn Trail

Aug. 9 C::»CII __ c:::a_ -=acoc::a ........ &:1«:313_.:1_ .... .. 94 22 1 __ ..

10 .. ....-.ct_ .. _ ------- ..--.. 56 18 1 2 --..--- 11 ------ .... __ ea_ 1 95 18 ____ 'S.4_ 1 --.. _...., 

12 37 4 ClOC:JCOC)c;:::D-.:2 ... 62 14 __ ca_-=-«;:) 2 _c..-=- .. 

13 c:::tc:ae:::3"«::JCiD K:)c::JcmCZ2SAC2 60 9 3 1 

'V 

14 4 83 14 5 1 ..,-_..-- 

15 ce_&.:Je:::tC;8_ .... c:=-c::ac::::rG:)&:JI __C' ... c::>_ e::tc=:t"C::::=C8e;;:t 65 11 2 ......_-- 

16 14 .. c:. .. _"c::20 e:- c::II-=:t tC3J ca 8:1 -=re:;a.,-=:r_-=:t 50 8 3 _c=:t .... 2

17 .. _-----=- II:IaCD __ e:t_ .,1eIl .. e::- .... t:a __ ICIC3C11 43 9 • _____ .-»C':) .. ------ 

18 ..._-....- 9 __ &:2-=- ____ 4 61 7 - -_.. 1 ------ 

19 ...... .. _ caC::).., .. ___ 52 10 3 8 ------ 

20 _-=-IC)C"»c:.--=a .. .,. ... e=_c=o 55 6 6 9 21 ____ coc:a" 1 70 11 1 1 -.,---- 

22 ___ -.._.:t _....... ____ 1 66 7 1 1 3 

23 3 _e- .. .. .. 69 10 _.. 8 -' ____ .m_

24 .. _.. ...

-

..

_

.. ..

- 79 3 3 2 -.. 

25 ." .. __ " .-&;;l_..,ea_ 3 80 4 6 3 CIO __ 

26 CDeti __ -=-_ __ ....... _ 74 -11 4 2 am_ ... ___

o
Table 3.--Numbers of earthquakes and minutes tremor recorded on

seismographs U, M, A, D, and N around ..

Tremor

Date (in minutes) Earthquakes

(1962)

Hale- SWIt rtf't Eastern Hale- KalaInter- maumau Kilauea and East maumau pana 

Deep mediate Shallow slides caldera Kaoiki' rift 30 kIn Trail

Aug. 27 __ -"WOICO-=t-=t _"C":IIcra_a=-tca 80 5 2 3 .. 

28 .. 3 c=::ac:J .. 1 76 6 1 1 --_..._-- 

29 _C3c:ac:aICl<:::t &:JCQ., ....-=--= c::o...,..,c:;;:>c;:aWl= 1 47 30 1 e:te::t-'_" .... 

30 c:.1Clc:;:)lCIc::;IIe:> .... 86 17 2 3 1- 

31 e::te3C2c::1CC1 ... c:I -=rc=c;:J =:t =» =- 65 6 CD e:-D c;r -=-., _.a =:aC:::JCDI.-:a e

1 I c:a':=c:QI=---.c.oe::t c.t:::I2g:Ji ... .. 73 7 4 1 

i

2 .... .. _ .. c::a .... 57 11 c:» co D::lI c...., 

3 __ __ ... _Cla .. e:;:,t:=a 40 4 M:I ... ..,.,._ .. _ 

4 eKI"-=-"'CC_ .... _-=:ae:;:,_Ci) .. .. c:;::::I" 37 5 __ .. -=ae::t 1 C8c..-.:J_-=-_

5 ...... _-=::1- ____ -=- ..

*'

-.

______

c::a

...-..

-

........ 90 ? 1 6 ..- 

6 -.:. .. _ .. -=:1 .. _a::Ite::-_""" ..........-... ______ c=t_-=a 73 6 .... 2 -------- 

7 ..-.. ___ .... _ca .. ... _....

-

.... ....--_.. 110 6 1 6 _-=ac:::a __ -=-_

8 ___ tE:J .._'" ..... am"'aa"'4ICI ..-... .....- _ ..... .. 60 9 1 3 __ .-.-.s ____ 

9 _ ... C:I_ .... __ .. 2- 80 8 5 _-=-_."c-._ .. ... _e._ .. 

10 --..,-_... GO -=t .... .,.-a.,-=- 1 52 13 2 _.. 

11 25 ... c= J,;'";lCI:I «:II e-.:a IIS"I 53 8 ..,.,tKlt==lo:t':lC!IiCI 2 

12 21 Cle::tGQ,CI:):Ae;:,=:= 60 8 2 .. _I.:t 

13 _..,. __ cw>co .. ==t e.;,. eoc:=:., c::;J' c:.J 64 12 .oc-.e:o .. .."ClO 2 3

14 _.,., ... .,e- c:::Dcocr::»_z:ccca:t 62 7 2 2 

15 -=:a __ .-.cKIle:-ll K:)C)c::;:lIc:ac::l co c-. .. c.-ac:o 82 6 -=t"''''_'''''' 2 .........
Table 3 .....Numbers of earthquakes and minutes of tremor recorded on_

seismographs UI M, A, D, and N around Kilauea Caldera--Contin

Tremor Earthquakes

Date (in minutes)

(1962)

I'

Hale aoo SWo rift Eastern Hale<=> KalaInter.... maumau K1lau..ea and East .L1laumau pana 

Deep mediate Shallow slides caldera Kaoiki rift 30 kIn Trail

Sept. 16 3 CK3 Clac:::;:)-=:J c=;J QD c::::l c::aClCtCE)C£)c:::Jcoe::." c:=IC=:S -=tee Cl CIID 72 15 1 

17 3 CIID c::» aID c;z:) c::::DCICI ClClI 51 21 1 Ql)t:=)t:=)Ci:)l;:IICJQ:J 2

18 t= Cll:Jc::OI c:::::::J QDC:::»C"J 50 7 CZ:Ic;gc::>a:> .... 3 

19 e::>e::tc::::>CD 36 5 1 1 

20 C:lc::JC%Jc:I OIQ c:I:3 c::oc:.>CICt c:;) ==- c;::::)c:::ICD<=lc:s:t Q::) 45 14 1 1 2 

21 QCIQ1Da;>e::t CElI<aaCOC::>=== 1 54 7 c::>c::>=== 3 e::::taoe.,;,E:::J.::D 

-22 c;:)C:c:.JC:t C1D.,c:;>= .... ..,c=:>c.-.c::a..,c:a 38 7 3 1 

23 ClDGlCCQClI:J=_C:> 1 73 9 1 

24 _=c::>.c _C:::>c::JC:>C1ll>C:OIC> I;;;)ClDC::>=C:>C::>C:> 2 64 4 1 1

25 __ em c=:J c::::> e::::::t C=-=' c:::s CJCJc::>ClZ>ClI:Jte:J 50 12 3 cm.,c::c:J.,.., 

26 _=c:>c:::>cc ..... c::o 75 10 c= ClK)CEJ c::,gec c.J 1 C1Cc::JC=:II.,c:a

27 21 e::tC:OClEllcz:)c::::)c::Je:::t 78 7 2 8 t::I:)C8)CE) ex::tc:;:l 

28 55 C) co CIO C::;S C...:J C) 55 12 1 3 

29 =c::>C:;:)CG c;:) e:te::;:, C"'.,j c::;::)e::::tQC c:::Jc::?C.2C."":)C.:JC:J sr.; 4 5 2 CIa -=- C=:O-."CID 

30 1 75 8 29 IClE)CKJIc:::I:)iX)t::)QD 
Table 4.--Local earthquakes recorded by seismo aphs'of the u.s. Geological Surve

July, August, and. September, 19 2

[Except tor smaller earthquakes of special interest, only earthquakes with magnitudes o

greater are listed0 Origin time is Hawaiian standard 0

In the following list some origin times are followed only by "KM 30" a statement o

These are all members of a continuing family of quakes noted also in other Summaries

mean focus for this group is beneath Halemaumau at a depth of 30 kIn (19°24o-i r N., 15

Origin times of members of a second persistent sequence of earthquakes are followed by 

(Kalapana Trail) e> These earthquakes originate at very shallow depths in a remote reg

the Kalapana Trail west of Kalapana, and they generally are not felt. Seismograms o

earthquakes poorly recorded and difficult to interpret; so only an approximate e

19°20' No, 155°05' Wo, can be assigned to theme

The mean focus of the magnitude 601 Kaoiki fault system earthquake of June zr and its

aftershocks is 19°24'No, 155°25' We' at a depth of 3 to 8 kIno This focus has been a

"Kaoiki H ]

...

-

Date Time Magni= Depth Epicenter 

(1962) tude (kIn) 

h .2!!.... s Lato No Longo Wo Description

July 1 09 18 5305 301 13 19°1002' 1540 5802' 20 kIn south of Ka1apana 

1 10 17 3801 201 ;} 19°1709' 155°3808' 27 kIn o

Naalehu.

3 02 CJ7 13?2 207 13 19°3408' 155°1106' 8 kIn west=northwest of' 

Mountain Viewo 

3 18 40 4103 305 5 19°1500' 155°37f)7 t 21 kIn o

Naalehu 0

-

..

w·
Table 4o--Loca1 earthquakes recorded by seismo aphs of the UoS. Geological Surve

July, August, and September, 19

Date Time Magnic:> Depth Epicenter 

(1962) tude (kIn) 

h l!l s Lato No Longo Wo Description

I

July 4 00 08 3706 2g7 t:=Jc::>c:r:> CIICI Cll::2cz:JCID C:O., C=>CII:)aDCDClI:>COor::>C=:>

4 01 17 2105 200 8 11 2002 t 155°23c2' Near Desert seismometer 

4 06 21 4500 207 35 19°2201' 155°1608' Near Ahua seismometer.....

5 01 05 1206 203 CICI CD=> Q:CI" Cll':lCO c::3ICIO ... 

6 00 58 4203 300 ..,c:::)""'" =c;.>c:nc:;)=c:o ...- 

6 06 41 5209 205 OI:Jc::>C:o:> CIOt::L:JGO occ::oe::;, _= <=>c:o-=>c::> ao""", KM 

6 16 41 2500 2·3 .,.CZOCIO ClO ___ C::>G::I CX)QDGO-O-=-l:CalaC::C Ka..o·ik.i.... ." eo:> ClIO ... .., 18>'" _ ... - - _ ...... 

7 05 53 5005 2.1 3 19°14.9' 155°0701' 8 kIn east.,..,southeast of

Apua Point.

7 05 55 12·5 207 5 19°1300' 155°0608' 10 km southeast .of 

.. Apua Pointo

7 17 28 1006 _.,..,c:> ... a:>QD __ KM 30

8 22 24 1.207 209 8 18048 1 155°08 V 50km south-southeast 

of Apua Point.

J
Table 4.--Local earthquakes recorded by seismographs of the UoS. Geological Survey,

July, August, and September, 1962--Continued

Date Time Depth Epicenter

(1962) tude (kID)

h m .§. Lato No Long. Wo Description

July 9 21 52 0800 2·5 Ge:l'.. -=, .. KM

9 01 45 28.4 2.6 8 18°58.1.1 155°21·5' 21 km o

Naalehu.

12 04 18 4702 207 cu ...... .. ...._---

12 15 35 4204 206 c:a .. _e"c:::JCJCDC2 KM

13 03 06 28·5 203 c::J" c::>e;:, C;.:I c=a e::tCz:laac::s ....... &.:J KM 30 oc .. _c::>_C:::O&::lc:>c:g ...... c=or.:o .. """.ClDCIl 

14 05 48 3306 209 =a:3G:) KM ..

.'...

14 err 37 5301 4.0 10 19°4404 1 155°3802" 18 km south-southeast

0'£ Waikii.

15 02 35 220'6 302 --- .... __ ...... c:a cu_e:;,_ ..___

15 17 11 1205 301 3 19°0103' 155°27.5' 15 kIn easte=>sQutheast

of Naalehuo

16 04 28 4702 207 e:._., .... _., ....... KM 30... ..

16 04 30 4507 200 _.0_ _...... 10:3_'"'_ .. KM
Table 4.-taLocal earth s recorded b

July, August,

cal Sur

Ti:me Magaics Depth Epicente:c 

(1962) tl1.k.1.e (kIn) --. 

li m a LatQ I\fc .Long. Wo

-

Ju.ly 16 13 03 53e6 2 .. 8 13 18°14 ' 155°01.t 62 km southe.tsQut

of Apua Point.

16 19 12 5900 205 45 19°39()8 r 19 km 

'. of Mauna Loa,

17 23 26 203 C:3c::3

18 04 44 23·0 3 1.550 25.3' 17 kIn east of Naa

19 11 39 4000 205 C2c:::J __ e:::tCl

19 12 45 04Gf7 205 c::ae:::t ... 

19 19 14 52.2 2.4 C5C1 -------- :KM 30------------

21 16 50 36.5 305 3 1ge 58 '. 156°16 ' 45 km west-southw

of Kawaihae.

22 11 55 20,,6 2·7 3 18°54c2' 1554>0802 40 km Bouthc:>lsout

-

of Apua Point 0

22 14 08 3el c.tC=-

22 . 22 16 2s5 KM
Table 40 earthquakes recorded by seismogra hs of the U. S. Geological Survey

July, August, and September, 19

Date Time Depth Epicenter 

.(1962) tude (km) 

h m ·s Lat" No .Longo'W0

July 23 04 19 2603 203 ao __ c::3-.:J8D_ ....__ 

23 23 4101 405 shallow 19°2809' 155°5902' 8 km west-southwest 

of Kealakekua. 

24 09 18 4408 205 &::>cac= ...

24 13 15 5300 2,,2 3 19°2502' 12 km southeast of 

Pahoa 0

24 17 48 1309 3 19°3400' 156°01.9' 14 km 

of Kealakekua.

25 00 32 0605 205 13 19°56.1' 155°25.8' 10 km west-northwest 

of Keanakolu.

25 08 28 0001 205 e=t." ... ___ -.:J ___ .._--_......

....

25 15 21 5201 204 8!Oc::ac:Ac-... 

zr 00 04 4402 300 
Table 4"..,c:>Local earth uakes recorded by seismogra hs of the UGSO Geological Survey

July, August, and, September, 19

c::.-c

Date Time M.agni= Deptrl Epicenter 

(1962) tude (km,) 

h m s

-- Latv Nc Longe. We Description

a-.> c-.., =olD

-- 'e

July 27 20 57 4805 205 e:;,<::..>c:2 <:::l >= = ,':.:J C:l CJ e:;:..:, c_:;· c:::a '.:. ) C;.... .:::a;l c::;;2 Kooiki au = (".;> c:> ow =.= = = .... c-::l ex> ...== 

21 22 06 4107 304 e;)C>e:::tc.:»CKJc;:)C%:)t3t KM 

zr 22 16 4901 2.8 crJe...""")c:.) KM

28 05 44 36Q8 2.1 

29 06 51 16.0 209 13 19°4602' 155°5409 10 kIn west of Puu Waaw

30 22 58 5603 207 8 19°5205' 155°1903 5 kIn southe>sQutheast 

of Keanakoluo 
Table 4.......Local earthquakes recorded by seismographs· of the U080 Geological Survey

July, August, and September,

Date Time Magni= Depth Epi,center 

(1962) tude (km) 

h m s N'o Longe Wl' Description

- """"'"

-

July 31. 02 46 4800 . 3 c5 shallow 19°2505 t 155° "OOl'O' 8km southwest of P

31 03 24 1508 3v7 CJc.:.3==c:;Jc::)= :Icr:',-"..., c;Q c:."" c=o = == -_ e:;;, c= 

Aug 0 1 09 57 3902 13 20057 f 105 km 

of Laupahoehoe.

1 16 06 2804 30.0 &::;:)c::::l0'0cx> 

1 16 28 3106 203 

1 21· 58 5102 204

2 04 38 1301 1$9 8 190 28.8' 155°01·7' 8 km west-southwes

Pahoa 0

3 05 50 41.7 205 8 19°24eO' 154°5707' 13 km south-southw

of Pahoa 0

3 05 57 4400 205 3 19°2401 t 155°0101' 13 km southwest of

Pahoa 0

3 08 31 5900 203 8 19°0409' 155°3108' 7 km 

of Naalehuo
f\)

o

Table 4 - ==Local earthquakes recorded by seismographs of the U. S Q Geolo ical Survey

July? August, and September,

-.-- a::.;:::au::;.:Atr ....

Date Time Ma.gnic:> Depth Epicenter 

(1962) tude (kID) 

PQ' 

h m s Lato 1fo Longo We Descri.pt.ion -- .=- -

Aug. 5 02 18 0603 201 c::::Ir;Q;4IO_t=:2;.-C=' .-:.J t,;-, ., .-0 «::) :aa IE' KM

5 02 58 29QO 204 3 19°27' 154°54' 8 kIn SE of Pahoa------

8 11 46 2900 Q;l.l_ .. :o::::t_ .... CIl:*_ KM 

9 00 27 1102 203 c:QtC:)C» «z:Ii __ ... KM

9 06 44 5309 207 

9 15 50 (J{ 00 2:)7 &;'::)C:::ac:)..,c;;JCi:lc=:;J 

9 21 16 5402 205 

9 23 12 1900 200 .-e> __ c:::>CJ«:IIIDe;,_c* 

10 02 17 55·0 200 .._., __ ....-..-- 

10 15 37 2001 2.2 _ .. e;:,.:a C:>_C::OC:>CJlE>C:> KM 

11 01 39 2602 2.6 50 19°1006' 1.55°20e2 t 20 kIn SSE of Desert 

seismometer 0

11 22 46 57 02 205 G:l •. tL;J c..-;, ""'=C":Ic::::><=3=<:::I COc::2t.QQtIR3'->c:I=:I_ KM 

12 02 CJ7 205 13 19°4500' 155°46·5' 7 kIn ESE of Puu Waawaa
Table earth uakes recorded b seismo a hs of the UoSQ Geolo ical Survey

July, August, and September, 19

Date T:ime Magni C2 tDepth \ Epicenter 

(1962) tll.,1le (lml) 

-.. h m s 0 Longo Wo Description - ="""

..

-

Aug 0 13 16 28 0105 202 8 19°1304 1 18 km north of Naalehu

13 22 32 0600 204 5 19°14' 40 km southeast of Cape 

Kumukahi.

14 19 28 2504 2:>6 3 156°16' 40 km southwest of

Kealakekua 0

14 21 11 3900 205 shallow 19°2802' 154°5807' 5 km southwest of' 

Pahoa 0

14 23 37 5000 207 c::) e::t c= C;;I 

16 17 15 07 Q5 206 1 1/2 19°2302' 154°5306' 14 km 

of Pahoa 0- 

16 18 31 3905 207 1 1/2 19°2302' 154°5306' 14 km sQuth<=southeast 

of Pahoa 0 
Table 40 earthquakes recorded by seismographs of the U0 S 0 Geological Survey

July, August, and September, 1962-IOContinued

Date Time Magni.", Depth Epicen.ter 

(1962) tude (kIn) 

h m s Lato No Longe> Wo Description - .-

Aug 0 17 23 30 06g5 400 8 19°1008' 155°32QO' 14 kIn northeast of 

Naalehue 

18 16 58 41G8 406 8 J.9°1802' J.55°1107' 11 kIn southeast of 

Ahua seismometerc 

18 18 21 4908 207 8 19°17 07' 155°2404' 13 km northeast of 

Pahala.

18 18 47 2100 200 3 19°2208 'I 155°09·7 11 kIn east of Ahua 

seismometer.

19 00 19 0204 202 8 19°5207' 155°1608' 15 kIn south....sQutheast

of Laupahoehoeo

19 00 53 1100 300 8 19°2200' 155°2900' 18 kIn north of Pahala 
1\).

lJJ

Table 4o-.."Local earthquakes by seismographs· of the U.So Geological Survey

AUgQst, and" September, 1962--Continued

,

..

Date Time Magni Depth Epicenter 

(1962) tude (kIn) 

!!! .§. Lato No Longo Wo n"escription

Aug 0 19 20 23 5000 205 8 155°31Q4' 28 kIn southeast of 

Kamuela.

20 01 39 (J(,3 300 8 19°10' 156°13' 50 kIn southwest of 

Kealakekua.

20 03 44 2509 2e2 8 19°48.9' 155°15·9' 23 kIn northwest of 

Hil0.

20 05 31 39.1 300 ---- .-,es-=-C:D.ae-c:. .... 

20 06 24 37el 2·7 _...-

20 13 40 2309 209 ......- ODc:;:)C;Jc;)ca-.., ..
Table earthquakes recorded b seismographs of the U.S. Geological Survey,

July, August, and September, 19

.' .:....-

Date Time Depth Epicenter 

(1962) tude (kIn) 

h m s Lato Longo Wo Description

- = ..-

Aug 0 20 14 41 5109 206 C'c:>c::> _c::ac;>-=O_CDC::SC:> 

20 14 58 29·2 208 c:o __ .. cac:ec::J 

21 04 26 3405 2 .. 8 8 19°10 ' 50 kIn southwest of

Kealakekua 0

21 13 29 3108 2·9 8 156°13 . 50 kIn southwest of 

Kealakekua.

21 13 39 58.8 2.6 3 19°29·2' 155°42.6' 13 kIn west-northwes

of 'IvIokuawe0weo 0 

ca1derae

21 13 52 2205 2.4 3 190 27.9' 155°42.1' 12 kIn west of . ' 

Mokuaweoweo

caldera 0

-

_

..
Table 4. --Local earthquakes recorded by seismographs of the UoS. Geological Survey

July, August, and September, 1962..-Cont1nued

Date Time Magni- Depth Epicenter 

(1962) tude (km) 

h !!!. .§. Late No Long .. w. Description

...... .-

Aug. 22 14 24 41c7 2<>8 8 19°10 1 156°13' 50 km southwest of 

Kealakekua 0

22 22 52 4409 2·7 --- c::::Jao __ __ KM 30-----------....-- 

22 23 22 3409 303 __ c::>CID -=tCll:tCKI ___ .-a _ ____ KT----------------- 23 18 39 2008 2·5 ...-- ... .,aD ____ KM 30-------------- 

23 18 3.9 3809 209 .. C*I __ KM 30----------..---

25 13 "20 4405 202 -.. """ ___ "':' KM 30-------...........--- 

25 17 54 0005 204 .....- -. .. -=aGD"4ID_.aa ....-- 

25 21 41 14.3 201 8 19°20·5' 155°0105' 19 km southwest of 

Pahoa.

25 22 22 19·0 3.4 13 19°09' 156°10' 50 km southwest of 

Keala.kekua.

'Z7 03 23 19·9 2.8 13 19°CJ7' 156°10' 53 kIn southwest of 

Kealakekua.

21 12 31 53Q7 2.5 8 19°3202' 155°55·5' 3 km

of Kealakekua..

29 20 30 4002 2.6 13 156°15 I 70 kIn southwest of 

Kealakekua.

30 03 'Z{ 1304 2·5 8 19°21.1' 155°2302' 1 1/2 km north of 

Desert seismomete

30 15 53 43e1 2·3 fataDa;lr;m, ____ .... __ KM
Table 4.--Local earth uakes recorded by seismo a hs of the. U.S." Geological Survey

...ly, August, and September, 19 2.a-Continued -.,

Date Time Depth Epicenter 

(1962) tude (lml) 

h m s Long. w. Description - -

Aug. 30 16 16 --.,;::) _-=:t .. _ .. __ _c=a_ ... .... 

30 16 44 28.9 2·5 3 19°2201' 155°29.3' 17 lml south''1est of 

Mauna Loa

seismometer 0

,

31 09 42 3lQO 3·0 8 155°25.5' 5 kIn southwest of 

Mauna Loa

seismometer.

sept. 2 13 16 00.4 2.6 30 19°25·7' 155°18.1' 1 kIn northwest of 

Uwekahuna

seismometer.

2 14 II 2.2 30 19°25Q7' 155°18.1' 1 kIn northwest of 

Uwekahuna

seismometer 0
Table 4o--Local earthquakes recorded by seismographs of the Geological survey,

July, August, and September,

--- ..

Date Time Magn1&"J Depth Epicenter 

(1962) tude (ron) 

h m s Lato No Longo WO Description - ---- -

Sept 0 2 15 34 40.0 205 

__

2 17 17 0502 3c;l 30 19°28.5' 155°15·0' 7 kIn northeast of' 

UwekahWla 

seismometer 0

2 21 49 20QO 305 13 ' 50 kIn southwest of 

;/ .

Kealakekua 0

3 07 28 02.8 2.4 --- ---=----- ..____a_- 

3 13 34 50·3 2·5 --- _....-..-- -------- 

4 04 27 54.0 204 10 19°1806' 155°15.8' 7 kni south of Ahua 

seismometer 0
Table 4o--Local recorded by seismographs the U.S. Geological Surv

July, August, and September, 1962--Continued

Date Time Magni- Depth Epicenter 

(1962) ; tude (kIn) 

h m s Lat. No Longo w. Description

--

Sept. 4 04 36 4800 2Q4 10 19°18.6' 155°15.8' 7 km south, of Ahu

seismometer.

6 02 47 2309 3·3 13 19°59.8' 156°00.0' 19 km west-southw

of

8 01 42 1208 208 3 19°2703' 154°50.1' 13 km southeast 

/'

Pahoa.

8 03 58 5800 401 8 19°02·3' 155°08·5' 25 kID. south-south

of Apua Point. 

9 07 17 3207 2.6 3 19°20·7' 155°06.6' 17 km east-southe

of Ahua seismom

9 10 05 26.1 2·5 3 19°23·8' 155°00.6' 13 km southwest o

Pahoa.

9 17 57 5700 2·7 8 19°18.0'. 155°50·3' 12 kIn southeast o

Hookena.

10 19 11 1500 306 3 19°20.0' 155°06.3' 18 km east-southe

of Ahua seismom
I\)

\0

Table 4.-caLocal ea.rthquakes recorded by seismographs" of the- U.S. Geological Sur

July, August, and September, 1962--Continued

Date Time Deptb Epicenter 

(1962) tude (km) 

h m s Lat. N«> . Longo W. Description - -

I

- -

Sept-. 10 "22 36 4456 2·9 13 19°05.5 156°10«>0' 55 km southwest 

Kealakekua.

11 (J{ 22 49.8 3·7 25 19°28.6' 155°14.0 1 9 km northeast o

Uwekab:una 

11 err 25 27·5 306 25 19°28.6' 155°14.0' 9 km northeast ,!"

Uwekahuna seiSll

17 39 51·7 2.9 13 19°05·5' 156°10.0 1 55 km southwest o

Kealakekua•

12 17 46 05·7 :2.8 8 19°34.5' 155°55.4' 7 kIn north of 

Kealakekua•

. .

.. 12 00 3() 54.9 2.2 8 19°16.0' 155°12.1' 14 kIn southeast 

of Ahua seismo

12 16 08 26.6 2.0 3 19°18.1' 155°21.6' 9 kIn southwest o

Desert seismom

13 12 41 59·9 2.2 --- -------- .. 
lJJ

o

Table 4.--LocaJ. earthquakes recorded by seismographs' of the U.S. GeologicaJ. Surv

July, August, and September, 1962-cgContinued

--

Date Time Magni- Deptb Epicenter 

(1962) tude (kIn) 

h m s Lat. :N' • Long. We Descript

- -

Septet 13 13 09 38.3 2·5

_

ClI

__

__

..."c::::otn ...,C'll e."''''''C::OO'''''IC_«_

14 16 32 1107 C::Oc::lC')c;:a C3_-.»e::t-=»t::»t::»

15 02 22 1403 301 coc:a.,. C3 c-::lI ______ C:$co_aac::lc::::l£:>c»

16 11 Z7 2600 2·7 3 19°16.2' 155°0209' Z7 kIn southwest 

Pahoa.

17 1.1 17 55c3 3·1 ClIe:tc::oc::l C'..____._CJ1 ______ 

18 03 30 0301 2.8 _..... c:ae-;,_C31 ___ __r.llC"ID""'.,.e::o

18 03 46 3202 8 19°5004' 155°4308' 21 kIn south-sou

of Kamuela.

18 06 55 08.1 206 5 19°22.6' 155°05.1' 37 kIn south of 

19 03 29 45.1 2.8 13 20°46' 155°49' 40 kIn east of 

HaJ.eakaJ.a, ...

Maui

19 04 Z7 08e7 205 8 20°00.8' 155°2008' 11 kIn 

of' Laupahoeho
Table 4.-caLocal earth es recorded b 'the U.S. Geolo cal Surv

July, August, and Septem er,' 19

•

DeJt:e Time Depth Epicenter 

(1962) (kin) 

m B No Long. Wo Description

- - -

. . ..

Sept 0 19 3703 ";) f"{ {, .dO 13 45 kin south of 

Hil.Oo

19 17 54 1800 208 8 190 531115 11 155°37tJ7' 16 kin southeast 

Kamuela.

, .

20 22 46 0509 3·;7 13 2o()46!,. " .... >.: 109 kin northeas

--

of Kamuelao

21 28 0800 2,,7 1.3 19°02.8v 155°2503 9 18 k:m eMtc=sout

of Naalehu.

..

-

. 

2l 18 52 1006 201 c::;Ie:I c:=-cc:JeaCJC::SCJc:it KM

22 13 ZT 2902 3.0 13 f' 70 k:m northwest 

Kealakekua.

22 13 33 4200 206 8 155°5609 i 16 k:m southc:Jsou

of Keala.kekuaG 

22 1.9 34 llca2 202 8 23 k:m east-north

of Naalehuo

23 10 38 4704 2.9 13 20°1302' 1550 4900' 25 kIn northwest 

Kamuela..
Table 4. earth es recorded· b hs' of the U0 So Geolo ieal Sur

July, August, and-September, 19 2c;3C3Continued

Date Time Deptffl

(1962) (kIn) 

c:::- -

h m 0 No Longo '".

- -

..

SeptQ 23 14 50 26&0 30 155°0709 i 16 ktn northeast o

Ahua seismomete

24 13 34 2e3 10 19°1806 w 155°1205' 6 kin southeast of

Ahua seismomete

.

-

24 19 05 2103 208 C::Jc:2 

25 09 03 4805 2.6 3 19@2508 t 155°02.5 R 25 km eMt C2northe

of Ahua seismom

25 13 22 3-5 8 19°15.1' 155°3002' 8 kIn northwest of 

pahaJ..a,Q 

.

-

26 13 C$ 5109 204 C:8a=1 C81OC3_c:::ae:lC" c:acaCClc:.. __etc:2

Z7 00 52 0206 - 15 20°0303' 155°0502' 38 km north of Hi

'Z{ 1.8 04 17.7 3·2 -- __ KM 
es recorded by seislno a; he -of the' U0 S0 Geological Sur

July, August, and September, 19

Date Time DeI,th Epicenter

(1962) t'ulle (km) 

..

h m c Ns Longo Degc:ription

Sept 0 Z7 20 11 42.'7 206 ClIC3C:::>C:::>C:::>c::.C3 KM

28 09 44 4900 205 8 18@56.8 v 35 kIn southeast o

NaalehuG 

28 12 44 43&7 34·3 13 21@27' . 1560 47', .. 96 kIn norlhwest o

Haleakala seism

28 22 50 050(1 205 30 190 21.2' 155°19.6' 7 km. east-northea

Desert seismome

29 09 50 53e9 203 8 1550 41,,5' 25 km east-northe

of Kea.la.kekuao

;

29 10 13 5Q.O 302 8 19°2lo0' 155°54.9' 5 km southC3 southw

of Hookena.

30 12 45 1005 2.5 ICICl1 _-=-e;,e:::tC":ltC:lC:::> _______ca Kaoiki-----------

30 13 05 4200 2.5 3 19(.)2507' ].54°56.8' 8 km south of Pah

30 20 22 1200 209 3 19°02$81 18 km of Naa
Table 5o~~Distant earthquakes

[Times are reported in Greenwich Civi.l Time which is 10 hours faster

than Hawaiian Standard Time 0 A n e " following the time of P indicates

compressional first motion; a "dlt indicates dilatational first motiono

Station symbols, locations, and instrumentation are presented in

Summary 25 0 Magnitudes calculated from the Hawaii seismograms are

followed by (HVO) 0 Location of epicenter, origin times, and focal

depths, and magnit~des reported by other instituti~ns are taken from

"Preliminary Deterinination of Epicenters~' published by the U0 S 0 Coast

and Geodetic Survey 0

A major disaster recorded this quarter was the Iranian quake of

September 1, 1962. By comparison, the Agadir earthquake of

February 29, 1960, caused roughly equivalent casualties and damage,

but it failed to record any recogni~able phases on the HVO network]

July 3

iF 08~41:1607 c U PEN eS 18:44:17

iP o8:41:16~7 u PEZ iR 18~56~53

eP 08:41:1602 d C&GS card 59aD62~

18:22~o6~3

iP o8:41~16<>5 c 54,,60

So, 132<.30

Wo

south Pacific Ocean

iP 08:41:1806 c h about 25 kIn 0

iP 08: 41 13 7 P: July 5

iP 08:4l:19~4 c U PEZ eR, 18~o6~30

iP 08:41:18.2 d C&GS card 52~62:

17:4o~5503

iP 08:41:17 c 3009° No~, 14.1040E<.

South of Hor.1shu

iR 08:54:57 h about 23 kIn r.

eS o8:48~18

eL 08: 52: 29

U PEN

U PEE

C&GS card 54-62:

08:32:3109

10.3° S., 165.9° E.

Santa Cruz Island

h about 50 kIn

Magnitude 603 (Berk)0

July 2, 1962

M Z

A Z

D Z

U Z

Pa Z

Na Z

Hi 'Z

Ha Z

U PEZ
Table 5.--Distantearthquakes-~Continued

C&GS card 53<",,62~:

03~32:0005

1004° N~, 122~6° E~

Panay, Phi.lippine Islands

h about 66 kIno

C&GS card 53C'_·62~

12~4o~3007

Iln9° N , 12201° Ee

Pan~, Phi.li,ppine Islands

h about 25 me',

C&GS card 54~92~

03=22:03·8

.5105°, Nt), 17805° Eo Aleuti~ Islands,- Rat Islands

h about 60 kala

JulY 8

M Z eP 03~29~15Q2 d

A Z eP 03:29~16()2 d

N Z eP 03:29:16.7 d

U FEZ ,eR 03: 3'9: 1102

O.3~ 44~ 02 c

o4:o8~22

Z eP

u FEZ eR

M

July 11

M Z eP 12~52:4705 c

A Z eP 12~52~48.o c

D Z eP 12~52~4704 c

N Z eP 12~52:47 .. 8 c

U PEN eo 13~13~41

U FEZ eR 13~17~O5

July 13

July 6, 1962

M Z eP 23:23:50.1 c

A Z eP 23:23:50.1 c

N Z eP 23:23=49.1 c

U PEZ iP 23:24:10 c

U PEN eSKS 23:33:52

I

U FEZ eG 23:58:30

C&GS card 54-62:

'23: 05: 3202

3606° N., 70.4° Eo

Hindu Klish

h about 203 km~

July 7

M Z iP 06~20:1103 c

A Z eP 06~20~13<)0

D Z eP 06:20:1204 c

N Z eP 06~20~1203 c

U FEZ iP 06~20~13 c

u PEN eS 06~25:55

U PEN iR 06~29~35

Ha Z Tmax 06~58:0506

C&GS card 54-62~

"06:12:48.9

51.3° No, 178.6° E.

Rat Is1~ds, Aleutian Islands

h about 60 kIn a

35
Table 5o--Distant earthquakes--Continued

July 15, 1962 July 16~-Continued

M Z iP 66~57:04~6 d COOS card 53.,.,62:

12:54~4006

A Z iP 06~57:0502 d 6203° No, 15301° WO

Alaska

D Z iF o6~ 57.: 0404 d h about 39 km.

N Z iP 06:51:0500 d J'u1y 17

U z iP 06:57:0404 c M Z iP 17:30:05 d

Pa Z eP 06:57:05n8 c Hi Z eP 17~30:06 c

Hi Z eP 06:57:05,,4 d U PEN eS 17:37:43

Ha Z eP 06:57:1802 d U PEE eL 17: 42~ 55

U PEZ eG 07:13~43 U PEZ iR 17:45:17

C&GS card 53-62: C&GS card 56--62

06:47:22.5 17:20:22·9

3908° N., 140.9° E. 43<>1° No, 144c5° E~

Honshu, J"apan Hokkaido, Japan

h about 103 km. h about 30 kIn.

July 16 July 22

M Z iP l3:02:36~7 d M Z iP 13~4,6:01 d

A Z iP 13:02:3709 d D Z eP 1.3:46:08

D Z eP 13:02:3707 d N Z eP 13~46~01 d

N Z iP 13:02:3607 d C&GS card 57-62:

13:36:49-7

U Z eP 13: 02:3704 c 8.4° So, 158.8° EG

Solomon Islands

Hi Z iP 13:02:3404 d h about 107 km~,

Ha Z eP 13:02:27->5 d

U PEZ eP 13:02:3702 c

U PEZ eR 13:14:55

U PEE eS 13:10:27

36):. 'j
Table 5.--Distant earthquakes--Continued

July 24, 1962 July 25--Continued

M Z iP 21:18:15G3 d C&GS card 60-62:

04:37:50.7

A Z ip 21:18:15.0 d 18.9° N., 81.1° Wo

West of Jamaica

D Z eP 21:18:15 h about 64 kIn

21:18:14.3 d

Magnitude 6 (Pas), 6.2 (HVO),

N Z eP 505 (Berk)

6 (Pal). ' Pa Z iP 21:18:12.1 c July 26

Hi z iP 21:18:1308 c M Z iP 08:26:05.4 c

Ka Z iP 21:18:15.8 d A Z iP 08:26:04.8 c

U PEZ eP 21:18:18 d D Z iP 08:26:05.0 c

M Z ipP 21:18:42.5 N Z iP 08:26:04.6 c

A Z ipP 21:18:41 U PEZ iF 08:26:05 c

N Z epP 21:18:41.4 Pa Z iP 08:26:0301 c

U FEZ epP 21:18:41 Na Z eP 08:26:07.5 c

U Z eS 21:26:43 Hi Z iP 08:26:03.8 c

C&GS card 57-62: Ka Z iP 08:26:0604 c

21:08:22.6

15.5°N., 92.5° W. Ha Z iP 08:26:09.8 c

Mexico

h about 129 kIn A Z ePP 08:28:53

Magnitude 5.6 (Berk)

5.5 (Pal) U FEZ is 08:35:23

July 25 U FEZ iSS 08:40~07

U· FEZ eP 04:48:19 c U PEN iL 08:43~55

Hi Z eP 04:48:58 d U FEZ iR 08:47:25

Ka Z eP 04:48:57 c C&GS card 58-62:

08:14:4108

U PEZ eS 04:58:21 7.5° N., 82.7° w.

South of Panama

U FEZ eSS 05:02:27 h about 21 kIn

Magnitude 6.8 (Pas)

U FEZ eR 05:09:59 7 (Berk)

37 7 ·5 (HVO)
Table 5.--Distant earthquakes--Continued

July 28, 1962 July 30--Continued

C&GS card 61-62:

00:05:10.8

16.2° S., 173.2° w.

Samoa Islands

h about 40 kIn.

Felt: Apia

PEZ eS

FEZ eG

FEZ iP

20:30:44.6 d

20:30:4108 d

20:30: 4409

20:30:4403 d

i.P

eP

eP

iP

Z eP 20~30:53.2 c

Z eP 20:30:47.0 c

Z

PEE iL 20:51:10

PEE iG 20:51:41

z

z

PEZ iP 20~31:19 c

FEZ ePP 20:34:11

PEE is 20:41:05

FEE iSS 20:45:21

z

u

u

u

u

u

N

A

Ha

Hi

u

D

M

C&GS card 60-62:

17:16:4404

3.3 0~o, 143.9° E~

North Coast of New Guinea

h about 25 kIn

Magnitude 6.8 - 7 (Pas)

7 (Berk)

7 (Pal)

July 30

17:27:2103 c

17:27:21.7 c

17:27:21.4 c

17:27:21.9 c

00:22:11

00:12:44.0 c

00:12:43.8 c

00:12:42.7

00:12:44.0 c

00:12:4407 c

00:12:49.3 c

00:12:55

00:18:47

eP

eP

eP

iP

eP

eP

iP

iP

iP

iP

z

z

Z

z

z

Z

Z

z

Z

z

A

D

u

M

A

N

u

M

u

Hi

Ha

u

D

July 30

U FEZ iR -17:45:56

u

Hi

u

u

u

u

FEZ iP 17:27:2101 c

Z iP 17:27:22.8 d

FEZ ePP 17:29:51

PEE is 17:36:11

PEE iSS 17:40:25

PEN iG 17:43:21

C&GS card 58~62:

20:18:4903

5.0 0N., 76".3 0w.

Western Colombia

h about 45 kIn

Magnitude 100 (HVO)

6.8 (PaA)

6.8 (Ber~)

6 (Pal) 0

47 killed in Caldas Province;

property damage over 400,000

sqG miles.
Table 5.--Distant earthquakes--Continued

July 31, 1962 August 1--Continued

M Z iP 05:25:05.8 d C&GS card 62-62:

04:36:57.6 A Z iP .~,~ .. :' ::'.06.5 d 3.20

s., 143070Eo ,'J,'''-"..•

North coast of New Guinea D Z iP 05:25:05.6 d h about 33 k'.M

Magnitude 6 .. 5-.6 .8 .(Pas 0) N Z iP 05:25:06.1 d 7 (Berk)

6.5 (Pal) U FEZ eR 05:50:13
Table 5.--Distant earthquakes--Continued

Aug. 3, 1962--Continued Aug. 11--Continued

A Z Tmax 10:53:45 N Z eP 01:55~o405 d

D Z Tmax 10:53:47 Pa Z iP Ol:~55~o603 d

U Z Tmax 10:53:45 Hi Z iP Ol~;55~0105 d

C&GS card 62-62': Ka Z iP 01: 55: 01 02 d

08:56:12.1

23.2° S., 67.5° w. Ha Z iP Ol~55:10~O d

Northern ChileArgentina border U PEN eS 02~01:o6

h about 11 kIn

Magnitude 7-7.3 (Pas) C&GS card 64...62:

6.8· (Berk) 01:41:3906

20.0° So, 178(,80 wo

Aug. 6 Fiji Islands

h about 638 kIne

M Z iP 21:00:53.3 d

Aug 0 11

A Z iP 21:00:53.0 d

M Z iP 08~zr~09lo7 c

N Z eP 21:00:54.3 d

A Z iP o8~21~lO.5 c

u FEZ eP 21:00:53

D Z iP 08:27:0901 c

Hi Z iP 21:00:56.3 d

N Z eP 08~27~0909 c

U PEZ is 21:08:09

U FEZ iP o8~21~lO c

U FEZ iSS 21:11:39

Pa Z iP o8~27~1104 c

u FEZ eL 21:12:21

Hi Z iP o8~21:1006 c

U FEE iR 21:14:49

Ka Z iP o8~27~0701 d

C&GS card 66-62-:

20:51:56.8 Ha Z iP 08:27:0208 c

26.9° S., 117.1° w.

h about 50 kIn U FEZ isP 08~27~44

Kermadec Island region

Magnitude 6 (Berk) U PEE is 08~36~38

5.5 (Pal)

u PEE eG o8:47~22

Aug. 11

C&GS card 69~62:

M Z eP 01:55:04.8 d 08:15:4307

25.2° No, 123~3° Eo

A Z eP 01:55:05.6 d Off NE'coast of FO~osao

h about 140 kIn

D Z eP 01:55:04.8 d Magnitude 6 (Pas)

40 5-505 (Pal)
Table 5.--Distant earthquakes--Continued

Aug. 13, 1962

A Z eP 06:47:25.1 c

N Z eP 06:47:24.8 c

U PEZ eS 06:56:46

U PEZ eL 07:06:16

August 17,--Continued

C&GS card 67-62:

05:04:31.5

10.6° N., 121.6° Eo

Panay region, Philippine Islands

h about 33 kIn.

C&GS card 65-62:

06:35:56.0

2.1°N., 83.5° w.

About 300 miles ffil of Ecuador

h about 33 km

Magnitude 6.5-6.8 (Pas)

5.4 (Berk)

5.5 -5.8 (Pal)

C&GS card 63-62:

08:19:37.8

54.6° N., 161.5° E.

East coast of Kamchatka

h about 52 kIn.

Aug. 17

M z iP 05:16:1~lo6 c

A Z iP 05:16:42.8 c

D Z eP 05:16:42.3 c

N Z eP 05:16:42.6 c

U FEZ iP 05:16:44 c

Hi Z eP 05:16: 1l-4.7 c

U PEZ eSKS 05:27:40

U PEZ ePPS 05:29:42

U PEZ eG 05:41:22

41

Aug. 15

M

u

Z eP

PEZ eR

08:28:12.4 c

08:42:04

Aug. 18

M z iP 16:51:50.1 d

A Z iP 16:51:51.1 d

D Z iP 16:51:51.0 d

N Z eP 16:51:50.2 d

Pa Z iP 16:51:50.0 d

Hi Z iP 16:51:48.8 d

U FEZ eR 17:04:49

C&GS card 67-62:

16:43:54·3

62.3° N., 152.5° w.

Central Alaska. Fe1t~

h about 32 kIn

Magnitude 6-6.3 (Pas)

·5 0 3- 5·5 (Pal)

18 5·3 (lIVO) Aug.

M Z iP 17:54:10.4 d

A Z eP 17:54:11.0 d

D Z eP 17:54:11.2 d

N Z eP 17:54:10.4 d

Pa Z iP 17:54:08.2 c

Hi Z iP 17:54:09.0 d

U FEZ eS 18:00:53

U PEZ eR 18:06:25
Table 5.--Distant earthquakes--Continued

Aug. 1B--continued Aug. 23--Continued

C&GS card 65-62: Ka Z Tmax 20:12:17

17:46:14·9

62.3° N., 152.50 w. Ha Z Tmax 20:11:59

Central Alaska. Felt.

Magnitude 6-6.3 (Pas) C&GS card 69-62:

5.3-5.5 (Pal) 19:17:26.6

5.3 (HVO) 15.6° S., 172.2° W..

Samoa Islands Region

Aug. 22 h about 3·3 k.m •

M Z iP 21:20:28.6 c

Aug .. 24

D Z eP 21:20:28.8 c

M Z eP 09:11:49.1 c

N Z eP 21:20:28.6 c

A Z eP 09:11:41.9 c

Hi Z iP 21:20:25-3 c

D Z eP 09:11:49.7 c

U PEN ePP 21:22:41

Hi Z eP 09:11:50.4 d

U PEE is 21:29:05

U PEE eS 09:17:47

U PEZ eSS 21:33:17

U PEE eG 09:19:49

U PEE iG 21:36:21

C&GS card 69-62:

C&GS card 67-62: 09:04:22.9

21:08:22.9 15.0° s., 173.3° w.

8.30N., 123~8° E. Samoa Islands region

Mindanao, Philippine Islands h about 33 k.m

h about 125 k.m. Magnitude 5.3-5.5 (Pal)

Aug. 23 Aug. 25

u PEZ eR 19:43:06 M Z iP 08: 39:22'04 d

M Z Tmax 20:12:33 A Z iP 08:39:21.8 d

A Z Tmax 20:'12:36 D Z eP 08:39:21.2 d

D Z Tmax 20:12:29 U Z iP 08: 39·: 21.3 c

U Z Tmax 20:12:30 Pa Z iP 08:39:23.3 c

Pa Z rnnax: 20:12:07 Hi Z iP 08:39:24.6 c

Hi Z Tmax 20:12:02 Ka Z iP 08:39:24·3, .

Ha Z :lP 08: 39: Zl·. u·

U PEZ esP 08:42:07

42
Table 5.--Distant earthquakes--Continued

Aug. 28

C&GS card 67-62:

02:18:58.8

40.2 0N., 137.8° E.

Sea of Japan

h about 274 kIn.

C&GS card 68-62:

16: 20-,:, 04 -1

38.3° N., 142.4°E.

Off east coast of Honshu,

Japan

h about 40 kIn.

C&GS card 68-62:

lO:59:58.5

38.0° N., 23.1° Eo

Greece

h about 120 kIn

Magnitude 6.8 {Pas) one death

Felt: Italy, Sicily, Crete,

Malta, and Yugoslvia.

z eP 16:29:44.3 c

M Z iP 11:18:44.0 d

A Z iP 11:18:44.3 d

D Z iP 11:18:45.1 d

U Z iP 11:18:43.8 d

Hi Z iP 11:18:43.1 d

Ka Z iP 11:18:58.1 d

Aug. 27

M z iP 02:28:39.7 c

A Z iP 02:28:45-9 c

D Z eP 02:28:36.0 c

Hi Z iP 02:28:40.4 d

Aug. 27

M

COOS card 68-62:

23:30:38.0

3 .7° S t, , 140.10 E.

New Guinea

h about 50 kIn.

C&GS card 67-62:

08:31:48.7

20.5° S., 178.5° w.

Fiji Islands

h about561 100.

U FEZ is 08:45:29

U PEE eScS 08:48:23

M Z eP 06:58:51.2 d

A Z eP 06:58:49-3 d

D Z eP 06:58:50.8 d

U PEN eG 07:13:04

U PEZ eR 07:16:44

M Z eP 23:41:31.7 d

A Z eP 23:41:31.4 d

D Z eP 23:41:26.8

N Z eP 23:41:31.4 d

Hi Z eP 23:41:33.4 d

U FEZ eR 00:01:24

COOS card 67-62:

06:48:57.1

34.0° N., 139.2° E.

East coast of Honshu, Japan

Felt: Tokyo

h about 38 kIn.

Aug. 25--Continued

Aug. 26

Aug. 26
Table 5.--D1stant earthquakes--Continued

C&GS card 71-62:

17:17: 51.9

21.2° S!, 114.4° w.

Tonga Islands

h about 33 kIn

Magnitude 5.5 (Berk)

Aug. 31

M Z iP 17:09:53.9 c

A Z eP 17:09:55.4 c

D Z iP 17:09:54.7 c

N Z eP 17:09:53.9 c

U PEZ iP 17:09:55 d

Pa Z eP 17:09:54.1 c

Na Z eP 17:09:55-9 c

Hi Z eP 17:09:53.2 c

Ka Z eP 17:09:48.9 c

U FEZ is 17: 15: 40

U PEZ iR 17:19:40

C&GS card 72-62:

17:02:43·4

51.3° N., 179.7° w.

Rat Islands, Aleutian Islands

h about 26 kIn

Magnitude 6.8 (Pas)

6-6.3 (Pal)

sept. 1

Aug. 29,. 1962 Aug. 30--Continued

M Z eP 22:46:49-5 c

A Z eP 22:46:48.7 c

N Z eP 22:46:49.2

U PEN eG 23:01:08

U PEZ eR 23:03:40

C&GS c&rd 70-62:

22:36:53·9

34'.10 N., 139.10 E.

Near yast coast of Honshu, Japan

h about 33 kIn

Magnitude 5-7 (HVO)

Aug. 30

M Z eP 13:43:28.6 d

A Z eP 13:43:29.8 d

D Z iP 13:43:31.4 d

U Z eP 13:43:29.3 c

U PEN eG 13:53:40

U PEZ eR 13:55:48

C&GS card 66-62: , 13 :35 :28 ·9

41.90 N., 111.4° w.

utah-Idaho border

h about 33 kIn

Magnitude 5.8 (Pas)

5.8 (Pal)

Minor damage in Logan, utah

Felt in four states.

Hi z eP 17:26:06.1 c

Aug. 30 M Z iP 03:53:31.9 c

M Z eP 17:25:59.0 c A Z eP 03:53:31.0 c

A Z eP 17:26:02.3 c N Z eP 03:53:31.1 c

D Z eP 17:26:01.5 c U FEZ is 03:59:04 1

t·t.,....
Table 5.--Distant earthquakes--Continued

sept. 1, 1962--Continued sept. 1

U PEE eG 04: 01: 26 . 'M Z eP 07~58:16.2 c

U PEZ iR 04:03:16 A Z eP 01:58:17.3 c

Ha Z '!'max 04: 30: 38, D Z eP 07:58:18.7 c

C&GS card 70-62: N Z eP 07:58:18.0 c

03:46:05.0

51.30N., 179.70

w. Hi Z eP 07:58:14.6 d

Rat Islands, Aleutian Islands

h about 25 kIn U PEN is 0,8:04:08

Magnitude 6.5 (Pas)

6 (Pal) U PEE eG 08:06:20

sept. 1 U PEZ iR -08:07: 56

M Z iP 05:00:47.9 c .Ha Z '!'max 08:35:34

A Z iP 05:00:47.6 c C&GS card 70-62:

07:51:08.2

D Z iP 05:00:46.6 c 51.3° N,•., 179.9° W.

Rat Islands, Aleutian Islands

N Z iP 05:00:47.·6 c h about 42 kIn

Magnitude 6.5 (Pas)

Pa Z iP 05:00:49.9 c 6. (Pal)

Na Z iP 05:00:44.5 c sept. 1

Hi Z iP 05:00:50.4 c M Z eP 19:39:47.4 c

Ka Z iP 05:00:48.4 c· A Z eP 19:39:47.4 c

Ha Z iP 05:00:49.5 c Hi Z eP 19:39:28.6 c

U PEE eScS 05:10:10 U PEZ iPP 19:41:00

U PEZ eSSS 05:13:40 U PEN iPS 19:50:56

C&GS card 70-62: U PEN iSS 19: 57: 51

04:52:14.5

15.9° S., 168.2° E. U PEN eSBS 20: 02::36

h about 244 kIn

New Hebrides Islands. U PEN iR 20:11:48

C&GS card 70-62:

19:20:38.5

35.6° N.

L~) 50.0° E.
Table 5.--Distant earthquakes--Continued

Sept __ l, 1962--Continued

C&GS card 70-62--Continued

Northwest Iran

'h about 21 kIn

Magnitude 7-3 (Pas), 7.8 (Berk)

7 (Pal)

OVer 10,000 killed, many injured,

extensive property damage.

Sept'. 7

Sept. 14--continued

A Z iP 18:2~':33.5 c

D Z eP 18:25:33.5 c

U Z iP 18:25:34.0 c

Na Z eP 1~:25:31.0 d

Hi Z iP 18:25:36.6 d

Ha Z iP 18:25:39.2 c

C&GS card 75-62~

18:17:52.1

19 .9°S.;- 177 .6° w.

Fiji Islands

h about 350 kIn.

Sept., 15

M Z eP 22:59:25.2 c

A Z eP 22:59:25.7 c

D Z ~P 22~ 59':25.7 c

UU Z eP 22:59:26.6 c

Pa Z eP 22;: 59: 27.8 c

Hi Z eP 22:59:26.0 c

Ka Z eP 22:59:25.~ d

Ha Z eP 22,: 59: 18.1 c

U PEN is 23:06:30

U PEE eG 23:10:38

U PEZ eR F3: 12:59

6.0 (HVO).

23:46:42.8 d

23:46:42.1 d

23:46:42.1 d

15:51:34_3 c

15:51:33.8 c

15:51:32.6 c

15:51:33.8 c

15:51:35 d

15:51:34.5 d

15:51:30.7 d

15: 51.: 30.7 d

15:51:36.5 c

15:~1:38.9 d

15:54:25

15:57:39

16:Ql:11

eP

iF

iP

eP

iP

iP

iP

iP

iP

z

z

z

z

U FEZ ePPP

U PEN is

U FEZ iSS

C&GS card 73-62:

15:43:59.4

21.1° B., 179.2° w.

Fiji Islands

h about 640 kIn

Magnitude 6,. 5 (Pa~),

Na

Hi

Ka

Ha

M Z iP

A Z iP

U Z iP

C&GS card 75-62:

23·:37:27 ·5

26.3° S., 178.0° w.

Kermadec Islands region

h about 50 kIn.

Sept., 10

M Z

A Z

D Z

N Z

U PEZ iP

Pa Z

Sept. 14

M Z iP ;1.8:25:34.0 c
Table 5.--Distant earth~uakes--Continued

I :

sept. 15, 1962--Continued

C&GS card 73-62:

22:50:46.3

48.5° N., 156.8° E.

Kuri1e Islands

h about 33 kIn

Magnitude 6.5 (Pas), 6 (Pal)

Sept. 16

M Z iP 03:14:12.7 c

A Z iP 03:14:11.9 d

D Z iP 03:14:12.6 c

N Z iP 03:14:11.2 c

M Z 1pP 03:14:31.6

A Z ipP 03:14:28.7

U Z epP 03:14:30.2

C&GS card 75-62:

03:05:33·0

19.30 N., 103.1° w.

Jalisco, Mexico

h about 100 kIn

Magnitude 4.8-5 (Pal).

sept. 17

sept. 18

M Z iF 00:40:29 . d

A Z iF 00:40:28.4 d

D Z eP 00:40:28.7 d

U Z eP 00: ItO: 25.2 d

U FEZ iP 00:40:28 c

Na Z eP 00:40:30.7 c

Hi Z iP 00:40:24.2 d

U PEN Q is 00:49:50

U FEZ iSS 00:54:11

U PEN iG 00:57:54

U FEZ iR 01:01:"

04

C&GS card 75-62:

00: 29: 05.2-

7.50 N., 82.3° w.

South of Panama

h about 33 km

Magnitude 7 (Pas)

7 (Berk)

6.5-6.8 (Pal)

Felt: Chiriqui Province.

C&GS card 77-62:

06:10:26·3

2.3° N., 126.9° E.

Molucca Passage

h about 33 kIn.

M Z iF 18:03:21.7 d

A Z iP 18:03:21.3 d

D Z eP 18:03:21.5 d

U Z eP 18:03:21.4 d

Ka Z iP 18:03:24.0 d

Ha Z iP 18:03:27.1 d

C&GS card 75-62:

17:55:45.4

21.00 S., 179.10 w.

Fiji Islands

h about 601 kIn.

sept. 18

M

u

z

z

eP

eP

06:22:26.1 c

06:22:29.9 c
Table 5.--Distant eaxthquakes--Continued

Sept. 30, 1962

M Z eP 22:09:22.1 d

A Z iP 22:09:23.9 d

D Z iP 22:09:23.3 d

U Z iP 22:09:23.3 d

Pa Z iP 22:09:25.1 d

Na Z eP 22:09:22.6 d

Hi Z eP 22:09:24.7 d

','C&GS card 78-62:

21: 57 :24 .8 '

18.6° N., 120.9° E.

Near north coast of Luzon, Philippine Islands

h about 51 km.

48;',1
The following persons or agencies reported "felt'f earthquakes

during the third quarter, 1962. Their assistance is gratefully acknowledged.

North Hawaii

Mr. McKay

Mrs. EklWld

Honokaa Police

Mrs. Christianson

Kilauea Summit region

Mr. and Mrs. :Francis

Mrs. Hansen

Dr. Wentworth

Mr. Richter

Mr. Yamamoto

Mr. Yang

Mr. Forbes

Mrs. :Fraser

Miss English

Mr. Koyanagi

Mrs. Duncan

Dr. Moore

Mr. Wehrsig

Mr. and Mrs. Mist

Mrs. Ferry

Mr. Ayres

Kona coast

Miss Wallace

Mr. Sutherland

Miss Greenwell

Mr. Mitchell

Mr. Paris

Mr. Ackerman

Mr. Greenwell

Mrs. Higashihara

Mr. Tanaka

Mr. Glass

Mr. Hayashi

,Mr. Chong

'Mr. Baldwin

Mr. Vredenberg

Kealakekua Police

Mr. Vanderbraok

Mr. Johnston.

Kona coast--Continued

Mr. Apple

Mr. Lind

Mr. Mitchell

Mrs. Higashi

Mr. Toy

Mr. Yoshina

Mr. Harai

Mrs. Hahn

Mr. S. Greenwell

Mr. Schattauer

Central Hawaii

Kulani Honor Camp

Mrs. Lindsey

H~lo region

.~

Mrs. Elliott

Mrs. Zsupnik

Miss Nitta

Mrs. Duncan

Mrs. Hansen

Mr. Williamson

Mrs. Ingledue

Mrs. Schaeffer

Dr. Hinds

Mrs. Weight

Mr. Ho

Mr• and Mrs. Bal~win

Mr. Wilson

Mr. Chong

Mr. Northwood

Mr. Donahoe

Kau region

Mrs. Elarionoff

Mr. Billings

Mrs • Walters

Mr. Coram

Mrs. Akana

Kau region--Cont.

Mrs. Kiva

Mr. Meinecke

Mr. G~dfrey

Puna

Mr. Warner

Mr. Edwards

Mr. Ho

NOTE: The Kona coast is· Hawaii's western coast, Kau is the district

south of Mauna Loa summit, southwest of Kilauea and on the flanks of both

volcanoes. Puna is the cultural/political district which lies on the

East Rift of Kilauea.
Geologf:

UNITED STATES

DEPARTr-1ENT OF THE n~TERIOR

GEOLOGICAL StJR'VEY

HAWAIIAN VOLCANO OBSERVATORY

Sill.1MARY 28

October, November, and December, 1962

By

Harold L. Krivoy, Robert Y. Koyanagi;

Arnold Okamura, and George Kojliaa

and

The 1962 Flank Eruption of ICilauea

by J'ames G. Moore

Issued August 1961t

Observatory Staff

Geochenlistry:

J'. G. Moore (Scientist-in-Charge)

C. K. vlent'\forth

Geophysics:

G. Kojima

H. L. Krivoy

R. Y. Koyanagi

A. T~ Okamura

A. S. Ryall

R. T. Okamura

General Support:

J. C. Forbes

W. II. Francis

B. J. Loucks

A. Yarnamoto
6

•

Contents

Page

The 1962 Flank Eruption of Kilauea, by.JamesG. Moore---------------- 1

Chronological summary------------------------------------------------

Tilting of the ground around Kilauea caldera------------------------- 10

Seismic summary------------------------------------------------------ 16

Persons or agencies reporting felt earthquakes during the quarter---- 50

Publications of special interest and H.V.O. numbered contributions,

1962--------------------------------------------------------------- 51

. Illustrations

Figure A. Map of the upper east rift zone of Kilauea showing

vents and flows of the 1962 eruption------------------- 4

1. Map of the island of Hawaii showing seismograph stations

and localities mentioned in the text---------------··--- 9

2a. Tilting of the groWld around Kilauea caldera between

June 30 and October 30..---·----------------------------- 13

2b. Tilting of the ground around Kilauea caldera between

October 30 and December 12----------------------------- 15

Tables

Table A. Area and volume of lava erupted in December 1962---------- 5

1. Tilt coordinates at Uwekahuna Vault, October, November,

and December, 1962-------------------------------------- 11

2a. Tilt coordinates and cl'langes at bases around Kilauea

caldera------------------------------------------------- 12

2b. Tilt cooI'dinates and changes at bases around Kilauea

caldera------------------------------------------------- 14

3 · Numbers of earthquakes and minutes of tremor recorded on

seismographs U, M, A, D, and N around Kilauea caldera--- 17

4. Local earthquakes recorded by seismographs of the

U.S. Geological Survey, October, November, and December,

1962---------------------------------------------------- 22

5. Dista~t earthquakes--------------------------------------- 37
•

I

HAWAIIAN VOLCANO OBSERVATORY SUMMARY 28

By Harold L. Krivoy, Robert Y. Koyanagi, Arnold Okamura, and

George Kojima

The 1962 Flank Eruption of Kilauea, by ,James G. Moore

On December 7-9, 1962, a small flank ~ruption occurred on the

upper part of the east rift zone of Kilauea Volcano in and east of

Aloi Crater. 'l'his outbreak occurred 15 months after the last previous

eruption of the volcano which occurred on the lower (eastern) part

of the same rift.

The first indication of the possibility of an imminent eruption

was the onset of sporadic tremor &1d local Sllallow eartl1.quakes at

1.9h3an December 6. The harmonic tremor rapid1.y be·came continuous and

was accompanied by small shallow eartllquakes averaging about one per

minute. A few of tllese earthquakes were laltge erlough to be felt,

particularly in the community of Volcano, 3 miles northeast of the

center of the caldera.

At Olhl<f' December 7, a glow, described as white at first,

changing to red, was observed from both the south side of the caldera

and from the Volcano Observatory, toward the direction of the upper

part of the east rift zone. From each observation point, the glow

was seen to grow from virtually nothing to a prominent light visible

for many miles. Hence it is believed that the first actual outbreak

occurred only slightly before it was first sighted. At Olh2om an

Observatory party arrived at Aloi Crater on the upper east rift zone

of Kilauea Volcano and found a nearly continuous line of fountains

extending in a line completely across the wooded floor of the pit

crater (fig 0 2) 0 The fissure was about 500 feet long and was

slightly modified by right,..offset en echelon arrangement. The lava

fountains wel"e playing to heights of about 30 feet with spurts up

to 60 or 80 feet. Almost the entire floor of the crater was covered

by approximately 10 feet of new lava, but trees were still standing

in many places on the crater f"loor even within a few feet of the lava

fountains themselves.
•

&

..

The fountai..l1s continued at about the same height until 02h20m and

gradually filled up the bottom of the pit crater. By 03rJ.Qam the fountains

had become thicker and increased in volume, and. occasional bursts t~xew

spatter above the opposite rim, or more trlatl 250 f'eet high" These large

bursts were accompanied by loud booming soun·ds.

By o3ho5m the lava lake 'tvas apprl)ximately 40 feet d.eep and the line

of fountains had. consoli.iated to three a.reas of fottntaining" one near

each end of the original fissure and a la!Jge :four~tain in the middle of the

pit crater. The rim of the pit crater was perceptibly shaking in rhythm

with the activity of the fountains. Shortly aftel' 03D.o5m the lava lake

began to drown the fountain on the west.

By 03hOffl the :fountains died. down and rapid drainback into the vents

commencled. By 03h lom the fountains were a1.most qUiet, drainback (especially

into the west vent) having lowered the entire lava lake approximately 10

feet. The crust of the lake was, in general, rJ.o longer incandescent,

being perhaps 6 inches or a foot thick. Ho\\rever, cracks through the crust

showed the bright red of the molten lav'a below. Se\reral groups of cracks

concentric to the small bubbling west fountain indicated the process of

drainback operating thereo

By 03h33m all tr.te fountains had stopped and drainback into the

eruptive vents continued to lower the lake surf'ace. At 03h4~ a large

part of the south rim of the crater broke off and crashed down into

the lava lake which by then was entirely black on i.ts surface except for

a few incandescent crackso The landslide broke through the lake crust

and splashed incandescent lava 20 or 30 feet into the air 0) The appearance

of the boulders as they plunged into the lava l.ake suggested that its

depth was 10 to 20 feet.

At 04h20m two new lava fountains broke out northwest of MakaDpu..'1i

Crater on the west slope of Kane Nui 0 Ramo (no. 2, fig. A). While

l~a was still pl~ing from these fissures a third outbreak occurred at

04 45m one-quarter mile to the southwest hno. 3, fig. A). These fountains

played only for about one hour, and b~r 07 oam they were not active except

for strong degassing, though booming and roaring noises were heard from

their direction for several hours mareo

At IlhOzn a new vent (no. 4, fig. A) on the north side o:f Alae Crater

(called Alea Lea Crater on some maps) began liberating fume. At 11h25m

this vent de,,-eloped a small lava 1'ountaLV). Inc·an.descent spatter was

erupted from this vent urltil llh33m, at wInch time the faint roaring

sOWld died and erupting spatter was no longer visi.ble from the road near

Alae Crater.

At Cf7h03ID, Deeember 8, a ball o:f brown-yellow smoke was seen, from the

Observatory, rising about 100 feet above th.e eruptive m-ea east of Aloi

Crater. The smoking which lasted about 20 minutes is believed to

2
•

have been caused by outbreak number 5 less than one-~arter mile northeast

of Aloi Crater (fig. A). This vent was visited at 11 oom and the small

lava flow was still hot and incandescent in cracks at that time.

A sixth and final outbreak occurred between 08h3am and 09hl~

December 9, about midway between Aloi and Alae Craters (no. 6, fig. A).

The active vent was observed from the air at oSh4om. At that time a

thin line of fountains 300 to 400 feet long played to heights of 60

feet, but averaged less than 30 feet. A rumbling noise was heard

during this period for about 20 minutes in the community of Volcano,

5 miles north of the eruptive area. The lava flow from this fissure

started a small forest fire which swept to the summit of the cinder

cone, Puu Huluhulu.

Minor falls of Pele's hair were reported on the road near Aloi

Crater at llh49Il and about 14hoom on December 9. Presumably this

originated from vent number 6 and was blown south at that time by winds.

Total volume of lava conducted to the surface during the entire

eruption was 436,000 cubic yards (table A). However, 280,000 cubic

yards drained back down the eruptive fissure in Aloi Crater leaVing

a total of 156,000 cubic yards on the surface.

3
Kilauea

19°25'

/954

•

EXPLANATION

Eruptive vents and lava flows of December 1%2

eruption. Number indicates sequence of eruption.

Historic eruptive vent showinq year of activity.

S indicates only fume liberated. Lava flows not

shown.

Prehistoric eruptive vents. Lava flows not shown.

Normal fault, chiefly. prehistoric. Ball denotes

downthrown side. Circular faults around pit craters

not snown.

Contour interval 100 feet

SCALE

Figure A. --Map of the upper east rift zone of Kilauea showing vents and flo

of the 1962 eruption.
•

"

Table A·--Area and volume of lava erupted in December 1962

Lava flow Area Thickness Volume

Sq. yds. yds. cu . yds. x 103

. x 103

1 (remaining on surface) 27 3 82

1 (drained back) (27 ) 10 (280)

2 (east flow) 23 1 23

2 (double west 'flow) 12 1 12

3· 16 1 16

4 1 1 1

5 4 1 4

6 18 1 18

Total remaining on surface 101 ----- 156

Total erupted --- ----- 436

5
"

! ..

Chronological summary

The most interesting event of the fourth quarter was the brief

eruption of Kilauea in and near Alei Crater in December 0 This

summary reviews the geophysical DUU~ife6tations that preceded and

accompanied the eruption for comparison with Moore's just-presented

description of the eruption.

After the sharp collapse d.uring ttJ.e September 1961, east

rift zone eruption (Summary 24), swelling of Kilauea volcano resumed

and continued at a moderate, but dimin:tshing, rate until the end

of June 1962. At the inner ring of tilt bases (Uwe, T M, Kea,

Kam) the average rate of outward tilting declined from 12 }.Lrad/month

(Oct. 8, 1961, to Jan 5, 1962, SUlmna..~y 25) to 51JXad/month .

(March 29,1962, to June 30,1962, Slnnmary 26). ,Between June 30,1962,

and October 30, 1962, (fig. 2-a and table 2-a) the average rate of

outward tilting at these stations increased again to 8llTad/month.

From the record of the short-base tiltmeter in Uwekahuna Vault

(table 1), it appears that this increased ra/ce of swelling continued

until the December eruption.

Subsidence of the caldera region in response to withdrawal of

magDls,from the central reservoir d~ing the eruption is revealed in the

pattern of tilting between October 30 and December 12 (fig. 2-b and

table 2-b) 0 The amount of subsidence is best indicated by the

change at Uwekahuna Vault (table 1), where a tilting of about 16

1J.radians toward the caldera occurred during the er1.1ption.

Comparison of this figure with that which accompanied the

collapse of the Kilauea summit follo~ng the 1960 east rift zone

eruption suggests that 5-10 million cubic yards of magma escaped

from the reservoir during the December erup~ion.

By the end of December swelling of tJ:le Kilauea- summit "r..ras

again in progress.

The daily count of small' shaJ..l~)w eaJ.--thquakes at ~ilauea caldera

averaged 63 du.ring the fir'st two weeks of October. On October 16

this number jumped to 90, and by October 31 it had reached 155. The

count climbed to 460 on November 7, then decreased slowly to 208

on November 18. These earthquakes averaged only 54 per day during

the rest of November. From an eleven month low of 20 on December

1, the daily count rose to 110 on December 5, just before theeruption. Following the eruption, the average daily number of

earthquakes from the caldera was 38 for December 10-18, but rose

to 133 for the r~st of tIle month.

Possibly indicative of 8" rapid :flow of m.agma at depth, episodes

of continuous tremor originating beneexh the Kilauea summit totaled

177 minutes during October and 101 minutes during November.

6
Harmonic tremor beginning at 19h

30mon December 6 (Introduction)

testified to the escape of magma from the summit reservoir, and the

concurrent swarm of' small shallow earthquakes from the vicinity of Aloi

Crater heralded the opening of fissures along the rift zone for about

5 hours before lava appeared at the surface early on December 7. These

earthquakes were all smaller than magnitude 207, and only the largest

were felt in the nearby community of Volcano.

Earthquakes from the source about 30 km beneath Halemaumau averaged

about 2 per day during October and November and 5 per day during

December. Only one was felt: it had a magnitude of 3 0 7 and was felt over

the entire island at 21h36ID on December 130

The largest earthquake during October originated at l3h3lmon the

31st about 15 km north--northeast of Naalehu alld 3 km deep 0 It had a

magnitude of 3.7 and was felt in Naalehu. The largest earthquake

during November had a magnitude of 401 and originated at 05hl8M on

November 22 at about 19°20' N., 155°05' W. (Kalapana Trail). It was

felt from Volcano to Hilo.

An earthquake from a focus 13 km east--northeast of ~ua Point and

8 km deep was felt over half of the island at Olho6m on December 28.

It had a magnitude of 4.1 and was the largest earthquake of the month.

A magnitude 4.0 earthquake from a focus 18 km north of Naalehu and

about 3 km deep was felt over half the island at l7h47m on December 30.

other earthquakes felt in Hawaii during the fourth quarter (23 in

addition to those associatec. with the outbreak of the December eruption)

are included in Table 4.

starting with the eruption, small shallow quakes have become frequent

all along the Koae fault system just south of Kilauea caldera~ Such

earthquakes have not been frequent in recent yea:rs, except at times of

major collapse such as the spring of 1960.

During this quarter, George Keller, U0 S0 Geological Survey, visited

Hawaii Island and carried out assorted electromagnetic and electrical

experiments~ He found, among other things, that the electrical resistivity

of Hawaiian rocks was very uniform and that three classifications were

possible:

1). very recent flows had resistivities between 5,000 and 10,000

ohm-meters,

2)., the bulk. of' Hawaii Island above sea-level had resistivities

between 500 and 1,000 ohm-meters,

3). at or below the water table, resistivity was less than

5 ohm-meters.

Electromagnetic studies by Frank Frischknecht and Leonard Anderson in

April 1962 revealed a resistivity of 102 ohm-meters for the still-molten

portions of the 1959 Kilauea-Iki lava la.'ke.

7
\

During the quarter a Scripps Institution experiment in noise

analysis was completed and equipment removed from lIVO. This

gear included a short-period installation and a three-component

long-period set established in the old West Pit tilt cellar. At the

time of their departure there were extra tele-recording channels

available at HVO, and so the abandoned data-lines were put to use and

recordings made from West Pit. These have proven to be very useful

in clarification of small seismic events near Halemaumau. The

new instrument (West Pit = wp) is located between the western edge

of Halemaumau and the western rim of Kilauea, caldera. It is

not convenient to plot this new installation at the scale of Figure

1.

8
EXPLANATION

• 'ettIM.,. Ste"

• TOWfl Of loeellty

L....I\e..... ----l..- 10.

, , ... IO_====, !O '1 .......

(Oft'.'" ."tef~ 1.000 f... I

D.'•• It _ ...

' ....,.,... ., UI ..,..,

\. .J

" 0

-----1-------I••

I

~--"-I~............................ .........................................~-""-Io.!........... :""'--................~.l.~.l~ .................................................-.........~"""""""_...&....L..""_L..,ju...J...J...J.._...J

Figure 1.--Map of.' the island of Hawaii showing seismograph stations

operated by the Geologic~ Survey and localities mentioned

in the text. Epicenters of local earthquakes are given in

terrns of geographic coordinates, which arte indicated at the

edges of the map.

9
Tilting of the ground around Kilauea caldera

Tilting of the ground around the summit of Kilauea is monitored

daily by a short-base water-tube tiltmeter in Uwekahuna Vault (table 1)

and at irregular intervals it is measured on a regional scale by means

of a network of field tilt-bases and a portable water-tube tiltmeter

(table 2). The attitude of the ground surface at each tilt base is

reported in terms of north-south and east-west tilt coordinates. Both

coordinates at each station were arbitrarily set equal to 500 when

measurements at that station were begun. Increasing tilt coordinates

correspond to northward and eastward tilting of the earth's surface,

that is, to a relative subsidence toward the north and east. A l-unit

change in coordinate corresponds to a tilting of 1 microradian (1 nun per

km) in the direction indicated.

10
Table l.--Tilt coordinates at Uwekahuna Vault, October, November,

and December, 1962

Date N-S E-W Date N-S E-W

sept. 30 457 505 Dec. 2 472 487

Oct. ·7 459 5014- 9 462 499

14 461 503 16 467 502

21 463 500 23 467 497

28 465 491 30 462 496

Nov. 4 467 497

11 468 496

18 469· 495

25 470 1~90

11
t-'

I\)

fl"

Table 2a. - -Tilt coordinates and changes at bases around Kilauea 'caldera (see :rig

-

Tilt coordinates

. 6

Tilt base Date Rate (10- rad/me ) 

(location) (1962) and direction of 

tilting since 

N-S E-W last reading 

Uwekahuna

(19°25.5' N. , 155°17.4' w.) Oct. 30 447.0 496·3 7·1 N. 29° w. 

Tree Molds

(19026.3 ' N. , 155°17 .3' w.) 31 438.. 5 512.8 2·9 N. 9.3 0 w. 

Sand Spit

(19°24.1 tN., 155°16.8' w.) Nov. 1 895.1 7CJ7·7 6.7 N. 7.3 0 E. 

Kalihipaa

(19 574.4 0 21.4 1 N., 155°15.3 1 w.) Oct. 30 4Z7.1 2.6 s. 28.5° E. 

Keamoku

(19°25.1' N., 155°19.0' W.) 31 481.3 598_3 7·4 N. 58.5 0 w. 

Ahua Kamokukolau

(19°22.7' N., 155°16.6' w.) 26 652.6 522.0 14.0 s. 13.5° E. 

Kipuka Nene

(19 514·7' 495.2 0 19 4' N., 155°16.7' W.) 25 .26 s.. 18° E . 

Hilina Pali

(19°18.2' N., 155°18.6' w.) 24 512.0 496.1 ·5 s. 35° w. 

Kapapala Ranch

(19°20.5' N., 155°23.8- w.) 23 497.6 504.4 .6 s. 51.3° E. 
---.

2.5 X 106 RADIANS I MONT'.'

-~2000

I

5 KM

30, 1962

I

Figure 2a.--Tilting of the ground around Kilauea caldera between

June 30 and October 30.

13
Table 2b.--Tilt coordinates and changes at bases around Kilauea caldera (see fig. 

Date> Tilt coordinates Tilt base ( -6 Rate 10 rad/rna) 

(location) (1962) and direction of- 

tilting since 

N-S E-W last reading 

Uwekahuna

(19°25.5' N., 155°17.4' w.) Dec. 10 437·3 499.6 7·7 S. 18.7° E. 

Tree }JIolds

(19°26.3' N. , 155°17.3' W.) 12 435.8 512·5 2.0 s. 9.5° w. 

Sand Spit

(19°24.1' N. , 155°16.8' w.) 12 891.4 702·5 - 4.7 s. 54.8° w. 

Kalihipaa

(19°21.4' N. , 155°15.3' w.) 11 575.4 423.8 2.5 N. w. 

Keamoku

(19°25.1' N., 155°19.0' W.) '11 474.4 605.4 7·3 s. 46.,2° E,. 

Ahua Kamokukolau

(190 22.7' W;') 10 658.1 521·7 3·7 N. 2.5° w. 

Kipuka Nene

(19°19.4' w., 155°16.7' W.) 13 510.4 2.8 ,., e>. 15° E. 

HilinaPali

(190 18.2' N , 155°18.6' w.) Not occupied this epoch. 

Kapapala Ranch

(19°20.5' N., 155°23·8' w. ) Dec. 19 497.6 .504.9 ·3 due East 

.. ,
..

2000

1---1

RATE 2~~ X 10· RADIANS/MONTH

30, 1962 - DEC' 12, 1962

.. I

t\ KM

Figure 2b. --Tilting of the ground around Kilauea caldera between

October 30 and December 12.

15
Seismic summary

Events recorded by the U.S. Geological Survey seismograph network

in Hawaii fall into two categories: local earthquakes and tremor

originating in the region of the Hawaiian Islands, usually within 100

km of at least one seismograph, and distant earthquakes originating

more than 3,000 km from Hawaii. As an index of seismic activity at

Hawaiian volcanoes, daily counts of earthquakes and minutes of

tremor recorded by seismographs in Hawaii are listed in table 3. The

earthquakes are separated irito groups on the basis of region of origin

'as determined by analysis of records obtained daily at the Observatory

(U, M, A, D, N). Earthquakes of magnitude 2.5 or greater are

generally sufficiently well recorded to be located with greater

precision; they are list~d individually in table 4. Data on indentifiable

phases from distant earthquakes are listed in table 5.

Locations of the seismograph stations are shown on figure 1) and

essential data on the stations were given in Summary 25.

16
•

Table of earthquakes and minutes of tremor recorded on

seismographs U? M? Aj Dp and N around Kilauea caldera

Tremor is separated into three deep, intermediate, .and shallow, on the basis 

on seismographs in the smmnit region. Unless otherwise tremor is pr

be associated with movanent of_magma within the central complex of Kilaueao

Earthquake categories are: Halemaumau rock slides, which are detected by the characteris

they produce on the Nnrth Pit seismograph; shallow earthquakes in the Kilauea caldera r

alon.g the":SWo rift zone of and the adjacent portion of the Kaoiki fa

system; earthqUaKes along the eastern half or Kilauea's east rift zone; earthquakes fro

source about 30 kIn beneath Halema.umau; shallow earthquakes 'along" the Kalapana Trail (SE 

of 10 to 15 km Woof Kalapana); and earthquakes from other regions: Kana, Mauna 

etc 0

..

Tremor

(in minutes) Earthquakes

Date

(1962}

Hale.., SWo rift Eas"tern Hale.,., Kalaca

maumau. Kilauea and East maumau pana 

Deep mediate ShalloW' f?lides Caldera Kaoik1 rift 30 km Trail

Octo 1\ =cooOCJ 3 ... c:>c::aCJc::lC:>eo 81 7 . - 7 <::tCD c:::s ClCJQII C:::Sc.:Jc:> CDCOIQaI 1 Kon

2 e;,eo .. c:>e::tCJc:D CDoCJc:>e::t=CID 68 13 C2CJc:::.c::>c::>C3 1 11

3 c:::Jc;::)c;:)CJc::.3C:)c::> e::tCJCJ=CJCJc::II 42 11 5 9 1 Kon

4 21 CJCJCJClCJC::;)e;::, C:::>CJc::a=CJC:::>c::I C3c::1c::1C::;)C::>C::» ? 7 i Cltc::JC::»C::>CDCIO 1 Kan

5 C)c:JC::>c::Ic::::J=c::J c::>C31CJc::JCJc::JCJ ClDc::>c::>C:>c:>c::;) 81 7 1 _=CJc:::>CJCCt 1 Kon

6 = CJC:=C:::>CJCJc::I 1 ? 3 6 2 4 1 Kan

7 (:DICDC)C")=C) 90 3 4 1 3 CJC)_e::t _

8 c::Je::tC)c;:)e::tC2 5 e::tC2e::te::tc::.3e::tc:> 7 1 2 6 CJ==c::IC::::>_ ___

9 45 __ c::> C2e::t_=c=-aaCD .75 10 CC)C2c;:)CJc:D 5 1 Hon

10 c::::::c:>c::>c::aC)c:D c::>c::ae;,c::aCJc;:)C) COc::> C)C" CD_ 59 8 C:>c::lICDC><3_ 111 cD"'C:lc;::)C)QD C)e:::tc::.e:::tc» CD CD 65 1 C»CJCZ:>C=>CD_ 3 cDc)CJC::»C'c::I 1 Mau
Table 3.--Numbers of earthquakes and minutes of tremor recorded on

seismographs U, M, A, D, and N around Kilauea caldera--Continu

Tremor

Date (in minutes) Earthquakes

(1962)

\ Hale- SWo rift Eastern Hale.... KalaInter- maumau Kilauea and East maumau pana 

Deep mediate Shallow slides Caldera Kaoiki rift 30 km Trail

-

12

_

ca

___

.. _c-. .. ____ e- ..

_

.._ClD _

-------- 60 8 --..--- 4

13 ----- -....---- e. .. _ .. c::. .. _

___

c.-

__

63 13 3

_____

IID

.. e::te::tc;a-=s

14 __ e-.:I_ ....a._ --_..-_.. ..-.._.... 63 18 1 3 _ ... - 

15 ------ -_.....--- ------- _ .. _ ... _e- 65 7 ... 5 1 c:. .. a::aL3_ 

16 10 __ c=- ..--c._ .._.,_ -------.. 90 3 ------- 6 c:::Ilca" __ 

17 ----- 28 ___.. C;J __ --_..-- 111 12 1 9 CD c:'2e::::t et-. 

18 -_..-- ..-.. -------- ..__ c:.-_e-I 96 6 1 2 c::.c»_c:a .. 

19 ___ ca .. _ -----..- 7 ---.e::-a._ 98 9 1 ..-_..-.-- .. c:.e- ___ 

20 _____ aac._ -------- 1 120 7 1 2 1

21 ....5$_ .. .._......-.. ____ e:--_ .. ; ..._--.... 135 7 1 5 c:.-=- .. .. 

22 ..... ------- ...... CIIIiIl __ 116 9 1 3 «:IOI::tc=-C'2I_

23 c:::D_-=ca._ .. .....-.. .. - -..---_.. _e:- ____ 96 15 1 2

24 _ .. _ .. o. .. C::ID ____ e- ___ 106 7 3 2 5 

25 c._ ...... ..-_.._- 10 .. 95 7 1 2 ____ -coo 

26- 35 5

___

cw

____

--

...

--- 126 6 a.u. .... __ .. 2 ..

27 _...." ..- .. _ .... ..... a::I __ .._---- 137 9 1 2 _ .. c::a.-:t_ 

28 .. a::I __ .. 1 -_.. _.. _.- .... 130 11 19 2 .... C"K:)«:::Il ..

29 _..---.. 4 -------- --_...... 135 8 10 2 .. 

30 2 1 -_.. ..- , 140 15 1 5 -=--=--_1-' ..1-

31 .......-- -- .._---- .. ...... _ ........ c-. .. 155 8 1 ------- ...c:::. ___ c.. 

Nov. 1 ------- --.._--- -.._--- 178 4 1 6 1 

2 ----- 1------- .. -..---- 160 4 2 3 
Table 3o--Numbers of earthquakes and minutes of tremor recorded on

seismographs U, M, Al D, and N around Kilauea ca1dera--Continu

Tremor

(In minutes) Earthquakes

Date

(1962)

Hale- SW. rift Eastern Hale- Ka1aInter- maumau Kilauea and East maumau pana 

Deep mediate Shallow slides Caldera Kaoiki rift 30 kIn Trail

Novo 3 20 __ __ c::I ------ .. .._-- 157 5 _"_c:l __ ___ e:t .. ., .._- 

4 __ -=-_IIID 3 14 - ...----.. 187 8 1 --_.... .... c:»lIII:Ca_CIaI

5 C3J ___ aos --_...._.. .. c::a _____ ..__ ....- 250 7 3 1 2

6 CD .. ca .. _ -------- 8 2 180 3 2 2 1 

7 2 .. ....- 11:8 ___"_ -------- 460 10 2 __... 1

8 ..__ .... ..--=--_..... _.. .._- .. -=- 300 8 12 4 ·6 

9 ..-.. QD_-=t .. .. _ _ .... _.. 226 11 1 1 

10 ---.... ------- .._.. 1 288 4 ...._--.. 1 __ -=a 

11 __ e- ___ ------- ------ ------ 87 26 1 3 .. .... _ 

12 __ .-_c. ..-_.. -=- .... --_.._- ------ 145 6 e:-_ ..___ 4 cw_c:ac:. ....

13 -._--- --..-..-- _.._--_.. ..-- 235 9 .._-- 3 2 

14 -_.._- --..---- - ....--- __ e- .. _ .. 256 6 1 -.. .. --.. ..-

15 --_.... -_..._--- --..---- ------ 228 10 9 ___ -=t __ 

16 ..---.. -....._--- .. -.. 220 8 2 1 .. c:a .. __ 

17 _......- ------- ---......_- .._-- 220 11 4 c._c. ..... c::. ...... _ ... 

18 .._....,- ...------- ..--=---- .., .. .. 208 3 3 2 c:::. ..... __ .. 

19 --..--- 6 -.. -_....-- 143 8 3 1 --.. ..... 

20 coa_ ...... .._-_...... _.._...... -=--- ....-- 86 5 2 3 7 

21 ___ .._------ _cm_ ...... --_..-- 52 6 ..,_-=:I_ca ___ e.- _______ ------

22 ---..-- 6 --_..- .. ----.:I_- 53 2 4 3 __

23 _..._-- _.. __....- ------ 1 48 4 __ ct .... ___ ---_...., 4

24 ----- ------- ...----- ---_.... 65 11 3 1 ----=-----

25 42 ------- ------ -----..- 45 3 1 ------ ..._---- 
I'\)

o

Table of earthquakes and minutes of tremor recorded on

seismographs U, M, A, D, and N around Kilauea caldera --Continu

Tremor

(in minutes) Earthquakes

Date

(3.-962)

-.., "

Ha1e- SW. rift Eastern Hale- KalaInter- maumau Kilauea and East maumau pana 

Deep mediate Shallow slides Caldera Kaoiki rift 30 km Trail

Nov. 26 c:::aCD ___ c:D_ "C8_"c::D __ ___ aa_ca 37 7 6 c::::I c::.e::::ta::-c:at:::2e:::::t

zr CDJ-=-CD'.:w ___ ...... ___ -=-ce ---......- ----=».... 25 2 2 _C:»C:;::)ClIliD't::::a c::JIc:;)c;::» __ c:a

28 ___C2C1l" _c:::aaa.-cmt_ .. -_...., ...--- _caca __ -. 24 2 2 _C::IcatlD_e::a c::Jc:=c:::J ..

29 .. .... ..

__

.. CI:I

___

c..

____ 32 5

.:3

_____

ca

1 C2lC::tG:Jl_ ....

30 e:- .....___ -------- ___ e-a- .. .. e- ____ 41 4 3 -8

Dec. 1 .. e- .......__ .. -=-c::;a_.:t_ .... 20 2 4 30 e::;;,co c. .. .., CI:8

2 c:D .. _ .. --....-_... ___ .. c:II_ ___ .. _a:- 45 5 2 5 1 

3 ca_ .... CD .. _CIJilt-. __ tct_ _.._----- 6 48 12 1 1 e;:::,c::.ca..-_-=a 

4 ca:ac.-a.eDca ... .. _ca ____ _ .. .. _ 2 97 10 _.._.. 2 ___

5 e-_e-_-=-'" _ .... e»CD_ca _t:D_-.:a .. _______ c=I 110 16 3 5 c::ae:::tCI::ICDCD _ 

6 eruption ------- ? 13 1 4 c;::)c::3e:::::-e::::t_e. 

1 lA,loi eruption

______

-.D

? 11 2 15 c::ac:::ae:;, .... 

a Aloi eruption 1 ? 10 __ "_ 15 ..__

9 Uoi eruption 2 ? 23 cmc=- ___ .-"' __ 2 c::aCOC::II_c:::._ 

10 .. __.. c.-_CIIIe:t .. a- ... ......._- 24 15 110 g;a; e- CD C2l =-- c;::a 4 c:;:)t:.3Ie:::t ___ ., 

11 cae- CD .... "'_a:a4D _.._.._-- 1 19 10 tr:Jc.-c:::-c=:tc:a_c:a 4 e=c:ac::;;aa-t=l_ 

12 .-:rCl8 .... ca .. ____ -.:Ja::a .. .. -=ac:a.,. .... _ ...-_a-ca_ .. 40 13 _ 1 3 

13 ------ .. _-=- ....

C31 ___ __ ..... c.._ .. __ 45 22 Q:._CD .. ____ 12 1 
I\)

....,

Table 3.--Numbers of earthquakes and minutes of tremor recorded on

seismographs U, M, A D, and N around Kilauea caldera--Continu

Tremor

(in minutes) Earthquakes

Date

(1962) \

/ Hale- SW. rift Eastern Hale- Kala....

Inter- maumau Kilauea and East maumau pana 

Deep mediate Shallow slides Caldera Kaoiki rift 30 kIn Trail

Dec $ 14· ,j---- 2 ---=----- ------ 30 15 1 __ .. e-_ '-'c.c.-C7caca 1 H

15 ---- ....__..-.- ---_..-- ------ 70 16 1 9· ..

16- ---- ----....- ........__.. .. 47 22 2 2 .. 1 H

2 O

17 ---- ------- -_...._-- ------ 39 5 ----- 4 ..

18 ---- 2 -----..- ------- 30 14 ....- 4 -.c. .. CC2 .... 1 H

1 P

19 10 ------ -=---_....- -_.._-- 76 21 3 _-=--=a .. c:aCII 1 K

20 ---- ........ca_ --

...

----- ------ 69 8 --_.._- 1 _ .. e.-_c:a .. 1 M

21 ---- ..........- _-=t_ .....:._ ------ 85 15 .. _ .... e:- 3 _-=tc=-C:llcac., 1 M

2 K

22 --_..

..

______

-e.

-

......_-- ------ 82 14 -----.. 2 .. c::.c:;J"_

23 -26 ------ ..-......_- "_ClIe ____ 90 19 _.-:a_ .. -=r 4 c:::a C8 C8 c:a-=t Cit

24 ---- 3° --_...._- 1 74 17 ca .... .,._

e:-

____

CDC8-=aC8C=:JCIl 1 K

25 23 ..-.._.... ..-----_.. _..._--- 116 9 2 2 ........ ca .. 1 K

26 .. c.- -..-....- __ ca_aD __ _.....-..- 94 20 3 10 _-=-c=t ____ 1 K

Z7

at

___

..

__

..

.... c.

____

_

...

----- 124 14 .. c.c:a .. _ 2 c:I ___.... 1 K

28 ---- ------ ...... .. ------ 97 8 2 3 .......... 1 K

1 A

29 ---- ------- ...._- 2 89 9 .. .... c:a., 5 caac:a-.z:t ..... _ 1 M

30 19 -=---_ .....,. ...._---- ..------ 96 11 --.....- 1 ...,c::a-=- c._ 1 K

1 M

31 6 ..---_.. _.._---- .._---- 103 10 ----- 2 .. 1 M

1 K
f\)

f\)

Table 4. --Local earthquakes recorded by seismographs of the U.S. Geological S

October, November, and December, 1962

[Except for smaller earthquakes of special interest, only earthquakes with magnitu

greater are listed. Origin time is Hawaiian standard.

In the following list some origin times are followed only by "KM 30" and a statem

These are all members of' a continuing family of quakes noted also in other Sum

mean focus for this group is "beneath Halemaumau at a depth of 30 kIn (19 0 2401" N

Origin times of members of a second persistent sequence of earthquakes are follow

(Kalapana Trail). These earthquakes originate at very shallow depths in a rem

the Kalapana Trail west of Kalapana, and they generally are not felt e Seismogr

earthquakes are poorly recorded and difficult to interpret; so only an approxim

19°20' No, 155°05' W., can be assigned to them.

The mean focus of the magnitude 6.1 Kaoiki fault system earthquake of June 27 and 

is 19°24 tN., 155°25' w., at a depth of 3 to 8 kIn. This focus has been abbrev

In the following list a number of quakes are described as "Upper east rift".. Th

so small and shallow as to make exact location impossible at this time 0 Stati

of the "family", which began just before the December eruption, gives a near-su

within one kIn, to the south, of Alai crater]

Date Time Magni- Depth Epicenter 

(1962) tude (kIn) 

h m s Lat. N. Long. W.. t'>- Description

- -

Oct. 1 06 52 03.6 3·0 13 19°32.7 ' 155°56.0' 3 kIn NW of Kealakekua 

3 06 13 04.5 2·5 8 19°24.0' 155°04.9' 36 kIn south of Hila

3 09 47 39·5 2.2 --- -------- --------- 
f\)

w

Table 4. --Local earthquakes recorded by seismographs of the"·U. S. Geological Surv

October, November, and December, 1962--Continued

Date Time Magni- Depth Epicenter 

(1962) tude (kIn) 

h m s Lat. N. Long. w. Description - - -

Oct. 3 12 55 34.5 2.1 3 190 23.5' 155°05.4' 36 kIn south of Hilo ...._

3 13 19 32·3 2.2 3 19°21.4' 155°04.6' 40 kIn south of Hilo ---

3 15 46 02.5 2.2 3 155°04.0' 43 kIn south of Hilo ..--

3 22 31 26.8 2.8 --- ------- -_.. KT----------------- ---

4 03 07 29·5 2·7 3 19°26.8' 155°44.2' 21 kIn ESE of _. _.._

Kealakekua.

4 03 11 20·5 2.4 5 19°19.1' 155°04.0' 44 kIn south of Hilo ---

5 14 56 23·3 2.·8 13 19°34.2' 155°53.4' 7 kIn WE of ---

Kealakekua.

6 14 02 41.2 2·5 --- ...._----- _....__.._- KT---------------- 

6 15 15 01.2 3-5 8 19°22.8' 155°03.0' 17 kIn SW of: Pahoa -..-

6 15 21 38.0 3·0 8 19°21.2' 155°03·4' 20 kIn SW of Pahoa ---

6 21 57 -19.6 2.2 3 190 22.7' 155°08.5' 14 kIn east of -..-

Ahua seismometer. !-':"::"",: 

6 22 16 08.9 2.2 8 19°21.0' 155°08.5' 14 kIn ESE of .. 

Ahua seismometer.
Table 4.--Local earthquakes recorded by seismographs of the U.S. Geological Surv

October, November, and December, 1962--Continued

'.

Date Time Magni- Depth Epicenter 

(1962) tude (kIn) 

h m s Lat. N. Long. w. Description - - -

_

..

-

Oct. 7 02 11 37·7 2·9 8 19°28.6' 155°50·5' 10 kIn SE of Kealakekua ___

7 13 32 29.6 2.2 10 19°18.9' 155°11.5' 10 kIn SE of Ahua .._-

seismometer.

7 13 33 25·0 2·3 10 19°18.9' 155°11.5' 10 kIn SE of Ahua ----

seismometer.

7 18 47 46·3 3·1 8 19°18.8' 155°03·0' 24 Ian SW of Pahoa ---

7 21 54 35·1 2.2 --- .. .. _.._------- KT--------------------- ---

8 03 32 27·5 2·3 --- .._--- --------- KM 30------------------ ---

8 07 40 44.9 2·5 13 19°19.5' 155°05·9' 20 kIn SE of Ahua

seismometer.

8 21 12 28.6 2·3 --- ------- --------- KM .._-

9 09 21 38.6 3·3 13 20°13.6' 155°31.0' 16 kIn NNW of Honokaa ---

10 21 35 34.7 2.4 --- --------- KM 30------------------ .. 

11 11 03 16.0 2.4 8 19°52.2' 155°29·1' 28 kIn SE of Kamuela ---

13 04 12 47.7 2·3 50 19°29.0' 1550 21.0' 5 kIn ESE of Mauna Loa ---

seismometer.
f\)

\J1

Table 4.--Loca1 earthquakes recorded by seismographs of the U.S. Geological Survey,

October, November, and December, 1962--Continued

Date Time Magni- Depth' Epicenter 

(1962) tude (kIn) 

h m s Lat. N. Long. w. Description - - -

..

Oct. 14 16 48 43·0 2.2 8 19°13·8' 155°09.8' 20 kIn SE of Ahua seismometer 

14 18 56 28.2 2.1 13 19°22.6' 155°08.1' 15 kIn east of Ahua 

seismometer.

15 00 35 26.0 3·3 8 19°37 ' 156°09 ' 28 kIn WNW of Kealakekua----- 

15 02 08 48.3 3·2 --- -------- ------_.... Km 30----------------------- 

15 04 23 15·7 3·3 13 19°40' _156°20' 46 kIn NW of Kealakekua------ 

15 15 37 28.7 2·7 8 20°01.2' 155°53·1' 20 kIn west of Kwmuela------- 

15 16 47. 2.6 8 155°53.1'- 20 kIn west of Kamue1a------- 

15 22 23 43·5 . 2·3 8 19°(){·7' 154°57.0' 41 kIn SSW of Pahoa----------16 03 15 26·1 2·3 5 19°3C':"J. ' 155°40.6' 25 kIn east of Kea1akekua---- 17 03 12 56.8 2.8 13 1904d.o' 155°42·7' 26 kIn south of Kamue1a------ 

17 21 59 01.0 3·0 12 1/2 20°05' 156°59' 112 km SW of Haleakala 

seismometer.

18 03 07 37·5 2.6 3 19°23·5' -154°54.4' 12 kIn SSE of Pahoa---------- 

18 03 19 32.4 2.6 --- ------- .. KM 30----------------------- 
Table 4.--Local earthquakes recorded by seismographs of the U.S. Geological Surv

October, November, and December, 1962--Continued

Date Time Magni- Depth Epicenter 

(1962) tude (kIn) 

h m s Lat. N. Long. W. " Description

- - - "'

Oct. 18 05 10 16.6 2.6 --- ------- 30-------------------- 

18 08 48 49.1 2.5 35 19°19.1' 154°59.5' 20 kIn SW of Pahoa-------- 

18 16 29 08·7 2.0 --- ---.._--- ___ .. __ -._e:- KM 

19 06 43 29.0 3.6 13 19°40.1' 156°06.0' 25 kIn NW of Kealakeku_a--- 

20 02 30 25·7 2·5 --- -------- --------- 

21 06 52 05.4 2.5 8 19°21·9' 155°03.1' 18 kIn SW of Pahoa--------

21 10 04 53.4 2·9 3 19°24.2' 155°57.5' 15 kIn SW of Kealakekua--- 

21 16 09 17·1 2.1 3 19°16.1' 155°34' 23 kIn north of Naa1ehu--- 

24 02 00 26.6 3·0 10 19°17·6' 155°27·3' 10 kIn SWof Desert 

seismometer. 

24 05 43 37.6 2.1 --- --------- -------...- Kaoiki------------------- 

I

24 07 02 47 ·5 2·3 --- -------- ---..-_....- KM 30--------------------

25 02 49 12·3 2·3 --- .._.._--..- KT----------------------- 

·25 03 32 01·9 3-5 --- ------_.. ------_..- KT----------------------- 

26 03 36 04.4 2·3 --- -_.. .... ---------- Kaoiki------------------- 

f\)

0\
Table 4.--Local earth uakes recorded by seismo a hs of the U.S. Geological Surve

October, November, and December,

\

Date Time Magni- Depth Epicenter 

tude (kIn) 

h· m s Lat<t N. Long., w. Description - - -

Oct. 'Z7 10 zr 53·0 ·2,,7 3 19°22.8' 1550 30.5' 15 kIn WNW of Desert seismom

28 06 37 28.0 2.2 10 19°12.0' 155°15.7' 14 kIn SE of Ahua seismomet

28 15 13 59.0 2.7 --- --------

--------- KM 30---------------------

28 23 02 33·1 2·3 --- -------- --------- 

29 00 34 40.8 2.1 5 19-25.8' 1540 51.6 ' 7 kIn SSW of Pahoa---------

29 04 27 11.0 2.2 35 19°13·3' 155-29.1' 4 km NNW of Pahala--------

30 11 55 40.9 2.1 --- -------- --------- KM 

31 13 30 50.0 3·7 3 190 11.8' 155-33.2' 15 kIn NNE of Naalehu------

ov. 2 04 51 40.6 2·1 --- ------- --------- KT-------------------------

2 09 02 37-7 2.4 10 19°18.7' 155°13.3' 9 kIn SE of Ahua seismomete

2 22 30 39·3 208 8 19°32.2 1 155°53.0' 5 kIn NW of 

2 22 50 28.9 2.6 8 19°09.8' 155°34.6' 1.1 kIn north of Naalehu----

3 03 55 31.2 2.5 13 19°46.3' 155°34.81 13 kIn SE of Waikii--------

.3 06 32 20.9 2.4 8 19°19.1 1 155·01.1' _20 kIn SW of Pahoa---------

N
Table 4.--Local earthquakes recorded by seismographs of the U.S. Geological Surv

October, November, and December, 1962--Continued

Date Time 14agni- Depth Epicenter 

(1962) (kIn) 

h- m s Lat. N. Longo W. Description - - -

I

No"r. 6 - 00 16 26.4 2·7 13 19°18.6' 155°05.5' 45 kIn south of Hilo---- 

6 05 56 13·5 2.8 3 19°11.8' 155°28.7' 1 kIn south of Pahala--- 

6 07 15 54·3 3·1 --- ------..- _....-_.. __.. 

6 21 55 31·9 3·0 3 19°24.1' 155°00.6' 12 kIn SW of Pahoa------ 

7 08 CJ7 38.6 3·0 3 19°09.9' 154°59.1' 37 kIn SSW of Pahoa----- 

8 00 06 52·3 2·7 3 19°27.9' 154°56.1' 4 km south of Pahoa---- 8 00 08 21·0 2·7 3 19°21·9' 154°56.1' 4 km south of Pahoa---- 

8 00 09 21·5 -2·5 3 19°2:7.9' 154°56.7' 4 km south of Pahoa---- 

8 06 43 36.2 2.8 --- -------- --------- KT--------------------- 

8 10 zr 3900 2.6 3 19°21.8' 155°04.5' 40 km south of Hilo---- 

8 14 24 55·0 3·0 13 19°01·3' 155°15.8' 35 k:m ESE of Naalehu--'- 

10 05 CJ7 12.9 2.1 --- -------- --------- KM 30------------------ 

11 06 26 30.0 2.6 8 19°24.4' 155°30.5' 15 kIn NW o:r Desert 

seismometer.
Table earthquakes recorded.by seismographs of the U.S. Geological

October, November, and December, 1962--continued

Date Time Magni- Depth Epicenter 

(1962) tude (kIn) 

h m s Lat. No Long. w. Description - - -

Nov. 14 03 10 36.3 204 3 19°24.1' 155°01.5' 14 kIn SW of Pahoa--------

14 20 28 27·9 2·3 20 19°26.5' 155°18.6' 2 kIn NW of Uwekahuna 

seismometer.

15 13 15 42.8 2.4 3 19°23.4' 155°05.6' 36 kIn south of Hilo------

16 22 19 16.0 2·7 8 19°49.7 1 156°01.8' 37 kIn NNW of Kealakekua-...-

17 00 31 16.0 2·5 15 19°52.8' 155°14.8' 25 kIn NW of 17 10 06 28.0 2.4 13 19°47.8' 155°40.2' 7 kIn SSW of Waikii-------

17 10 07 34.0 2·3 --- ----..--- --------- Kaoiki--------------------

18 13 49 18·5 2·5 8 19°28.0' 155°51.9' 8 kIn SE of Kealakekua----

18 17 53 45.0 2·3 12 1/2 19°4703' 155°43.5' 10 kIn SW of Waikii-------

19 03 23 04.6 2·3 13 19°21.5' 155°56.4' 18 kIn SSW of Kealakekua--

19 21 01 28.0 2.2 --- ...._.._..-- .. .._--_.. 

20 01 56 55·2 3·7 13 20°00.1' 155°53·4' 8 kIn SW of 

I\)

\D
w

a

Table 4.--Local earthquakes recorded by sei'smographs of the U.S. Geological Sur

October, November, and December, 1962--Contlnued

Date Time Magni- Depth Epicenter 

(1962) tude (kIn) 

h m s Lato N. w.

- - -

Nov. 20 04 33 34·5 2.0 --- ---_.._.... ----_....... Kaoiki--------------------

20 16 54 30·5 2·7 --- --_.._.._- ..._--_.._- KT------------------------

20 20 38 11.4 2·9 --- _-._----- .. KT------------------------

21 06 45 31.1 2·9 --- .. ..-..__ .. _-- 

22 03 05 55.6 2.6 --- -------- KT------------------------

22 04 26 10.0 3·9 --- -------- ----_..._.. KT------------------------

22 05 18 21·7 4.1 --- -------- ________ .0 KT------------------------

22 19 32 26.5 2.0 --- -------- _.._--_..- KM 30---------------------

23 09 51 50.0 2·5 --- _____ -ca-_ ..-------- 23 11 52 54.5 2·7 --- _....- .._-- -_..--.--- KT------------------------

23 12 04 57·3 2.2 --- ---_.._-- ---.._.....- KT------------------------

23 16

....

47 ,37 ·5 2.0 3 19°19.7' 155°03.5' 10 kIn WSW of Kalapana-----
Table 4.--Loca1 earthquakes recorded by seismographs of the U.S. Geological Survey,

October, November, and December, 1962--Continued

Date Time Magni- Depth Epicenter 

(1962) tude (kIn) 

h m s '·Lat. N. Long. w. Description - - -

Nov. 24 17 54 57·0 2.4 3 19°23·0' 154°57.7 ' 14 kIn SSW of Pahoa-----------

25 09 45 31.5 2.2 3 19°04.1' 155°26.1' 17 kIn east of Naa1ehu--------

26 06 56 04·3 3·2 3 19°27·0' 154°58.0' 6 km SSW of Pahoa------------

30 02 02 56.0 2·5 ---- -------- --------- Kaoiki-----------------------

Dec. 1 03 22 14.5 2.4 ----- -------- - ..-----... - KM 30------------------------

1 09 41 54.4- 2.2 ---- --------- --------- KM 30------------------------

2 02 13 15.6 2.1 ---- -------- KM 30------------------------

2 02 21 45.5 .2.8 13 20°17.2' 155°38.9' 28 kIn NNE of Kamuela 

seismograph station.

2 11 50 03·2 2.5 ---- --------- --------- KT---------------------------- 

3 03 28 17·0 2·9 8 19°17.0' 155°47.0' 17 kmNE of Milolii----------

-3 03 34 50.0 2·5 8 155°36.9' 14 kIn NNE of Naalehu---------

3 07 . 30 55·0 2·3 13 19°23·5' 155°18.5' 6 km WNW of Ahua seismometer 
Table 4.--Local earthquakes recorded by seismographs of the U.S. Geological Survey,

October, November, and December, 1962--Continued

-.

Date Time -Magni- Depth Epicenter 

(1962) tude (kIn) 

h m 5 Lat. N. -Longo w. Description - - -

Dec. 4 10 52 20.0 2.0 25 19°18.0' 155°17.2' 9 kIn SSW of Ahua 

seismometer.

5 06 28 05·2 2.8 8 19°36.5' 156°10.1' 28 kIn WNW of Kealakekua 

5 12 32 42.5 2.1 --- ------...- -_.... Kaoiki----------------------- 

6 19 01 36_0 2.2 13 19°03.4' 155°16.5' 37 kIn SSE of Desert 

seismometer.

6 19 59 53·0 2.6 --- -------- ---------- Upper east rift-------------- 

6 20 31 39.1 2.4 --- ------..... -...------- Upper east rift-------------- 

6 20 40 25·0 204 --- -------- ---------_.. Upper east rift-------------- 

6 21 26 26.9 2·7 --- -------.. --------- Upper east rift-------------- 

7 08 05 43·0 2.4 ---. _____ c... __ --..------ Upper east rift-------------- 

7 13 42 57.8 2.0 --- - .._------- ---------- Upper east rift-------------- 7 23 37 38.5 . 2.6 13 19°59·3' 155°19.8' 10 kIn west of Laupahoehoe. 

7 23 57 28.0 2.0 13 19°16·9' 155°13·1' 4 kIn NW of Apua Point. 
Table 4.--Local earthquakes recorded by seismo raphs of the U.S. Geological Survey,

October, November, and December, 19 2--Continued

Date Time Magni- Depth Epicenter 

(1962) tude (km) 

h m s Lat. N. Long. w. Description - - -

Dec. 8 22 42 15.6 203 10 19°25.9' 155°17.8' NW rim of Kilauea caldera 

I

8 23 59 00·5 2.4 10 19°23·2' 155°19.6' 6 km SW of Uwekahuna 

seismograph station.

9 00 08 00·5 3·0 45 19°51.2' 20 km SW of Laupahoehoe------- 9 03 05 42·3 2.1 8 19°25.1' 155°16.5' Kilauea 

10 20 15 39·0 2·3 3 19°58.5' 155°20.5' 12 km WSW of Laupahoehoe------ 

11 00 16 34.8 2.8 3 18°50' 155°07' 47 km SSE of Apua 

11 08 49 55·2 2.6 8 19°17 · 5' 154°41·8' 30 km SE of Pahoa------------- 

12 00 08 23.4 1·5 8 19°12.2' 155°21.1' 17 km SSE of Desert seismometer 

12 02 36 10.0 2.8 3 19°12·9' 155°21.5' 12 km ENE of Pahala----------- 

12 16 30 00·5 2.4 3 19°54.2' 155°28.5' 26 kIn SE of Kamuela seismograph 

station.

12 23 18 34.5 2.2 --- -------- -----.... _-- KT----------------------------- 

13 00 20 11.1 2·7 --- -------- --------- Kaoiki------------------------- 13 02 02 32.0 2.2 5 19°11.8' 155°39.1' 16 km NW of Naalehu------------ 

13 20 21 31·7 3·5 3 19°13.3' 155°21.2' 13 km ENE of Paha1a------------ 
•

Table 4.--Local earthquakes recorded by seismographs of the U.S. Geological Surv

October, November, and December, 1962--Continued

...

Date Time Depth Epicenter 

(1962) tude (km) 

h m s Lat. N. Long. w. Description - -

Dec. 13 20 24 5803 200 3 19°12.2' 155°21·3' 16 km SSE of Desert seismom

13 21 36 18.7 3·7 --- --------- --------- KM 

14 13 04 51·5 2.8 --- --._----- --_.._-....- Kaoiki---------------------

14 13 47 27·6 2·5 --- --------- ..- ... .-...-..-- KT-------------------------

14 23 49 47.5 2.0 8 19°07·5' 155°1800' 27 km SSE of Desert seismom

15 11 05 54.0 3·0 --- c. ___ ...... _ __ .. _ .. a:a 

16 04 39 33·0 2·3 25 19°08.1' 155°2501' 21 kIn ENE of Naalehu-------

16 06 23 44.8 2.2 8 19°0303' 155°19.6' 28 km east of 16 06 47 35·9 1.8 8 19°15.5' 155°22 .. 0' 10 kIn SSE of Desert seismom

16 08 38 37·7 2·5 <3 19°11.8' 155°19.8' 17 kIn SSE of Desert seismom

17 19 39 23·7 2.1 -...- ......._-.._- __ ... __ KM 

18 23 28 28·5 2.4 8 19°54.1' 155°10.1' 5 kIn west of 

18 23 30 09.4 2·3 13 19°47·3' 155°33.8" 7 kIn NW of 

19 04 52 57 ·5 2·3 3 19°09.5' . 7 kIn SE of 

19 20 08 11.5 2.2 --- --------- ----..---- 
W

\J1

Table 4o--Local earthquakes recorded by seismographs of the U080 Geological Surve

October, November, and December, 1962--Continued

Date Time Magni- DeptLJ Epicenter 

(1962) tude (kIn) /, 

h m s Lato N. Long. w. Description

- - -

Deco 20 05 15 50·5 2.8 8 190 47 ' 156°12' 45 km NE of 

I

21 05 08 0303 2·3 3 19°12.0' 155°41.0' 18 km NW of 

21 07 00 56.5 3·3 8 19°06.4' 155°21.8' 16 km SW of 

21 16 20 08.0 2$8 8 20°40' 154°38' 140 km ENE of Upo1u Point-- 

21 17 21 44.5 3 19°24.1' 155°43·1' 25 km SE of Kealakekua----- 

21 21 47 208 13 20°48' 155°25' 75 km NE of Upo1u Point----

23 15 21 19.9 2.0 8 19°1908' 155°25.8' 5 km WSW of Desert 

seismometer.

24 08 12 3°·5 200 --- ___ .. _ca_ ....-...._- 

25 12 19 35·3 2·7 8 19°4008' 156°0108' 29 km NW of' Kealakekua-----

26 20 24 38.5 2.6 3 19°25.2' 155°58.2' 13 kIn SW of Kealakekua-----

27 04 59 06.4 2.8 --- _.a __ ___ -.. ..-.... KM 

'Zl 05 20 23·0 2·3 --- 1-------- --------- KM 

27 12 14 18.0 2·1 --- ..--_.. .._----_..- 
Table 4.-c:>Local earthquakes recorded by seismographs of the U.S. Geological Surv

October, November, and December, 1962--Continued 

Date Time Magni- Depth Epicenter 

(1962) tude (km) 

h m s Lat. No Long. W. Description - - -

\

Deco 28 01 06 10&1 401 8 19°18e5' 155°05.0' 13 km ENE of Apua Point--

28 03 49 36.0 3.4 8 19°14.2' 155°48.8' 33 km SSE of Kealakekua - - 

29 14 09 38.1 3·0 8 19°08.8' 155°41.5' 14 km NW of Naalehu-------

29 18 41 zr·5 3·0 --- ..-.._..-_.. .._-----.... KM 

29 18 48 25·5 2.4 --- -------- ..-.._...... KM 

30 17 47 19·0 4.0 3 19°14.0' 155°35.8' 18 km north of Naalehu---

31 06 02 03·5 3·0 <3 19°24.1 155°45.5' 21 km BE of Kealakekua--

31 CJ7 11 10.1 2.9 <3 19°12.0' 155°38.0' 16 km NNW of Naalehu:----
Table 5.--Distant earthquakes

[Times are reported in Greenwich Civil Time which is 10 hours faster

than Hawaiian Standard Time. A "c" following the time of P indicates

compressional first motion; a lid" indicates dilatational first motion.

Station symbols, locations, and instrumentation are presented in

Swnmary 25. Magnitudes calculated from the Hawaii seismograms are

followed by (HVO). Location of epicenter, origin times, and focal

depths, and magnitudes reported by other institutions are taken from

"Preliminary Determination of Epicenters" published by the U.S.

Coast and Geodetic Survey.

During the quarter, no exceptionally large or disastrous quakes were

recorded from distant sources. The period was notable, however, for the

number of deeper quakes which took place. Also, both long-period and

short-period energy was recorded from U.S. atmospheric tests about

800 miles from Hawaii. Some of these were even felt or sensed in the

State; the largest (Which took place during the day and so was not

visible) alarmed manY people in Honolulu. During this quarter large

Russian nuclear tests recorded at HVO as long period barometric

pulsations on the PreSS-Ewing set at Uwekahuna]

Oct. 1, 1962

M Z iP 04:04:08.1 d

A Z iP 04:04:07.7 d

D Z eP 04:04:08.0 d

U Z iP 04:04:07.8 d

Pa Z iP 04:04:09.3 c

Na Z iP 04:04:04.4 c

Ka Z eP 04:04:11.0 d

Ha Z iP 04:04:12.9 c

Hi Z iP 04:04:10.7 c

C&GS card 78-62:

03:56:52.0

17.5° S., 178.9° w.

Fiji Islands

h about 550 km.

Oct. 1

M Z iP 10:02:24.7 c

A Z eP 10:02:25.8 d

D Z eP 10:02:25.4 d

U Z eP 10:02:25·2·d

Pa Z iP 10:02:26.3 c

. Hi Z eP 10:02:24.5 c

C&GS card 78-62:

09:53:32·9

47 .30N., 151.5° E.

Kurile Islands

h about 127 kIn.

37

Oct. 6

M Z eP 04:32:37.6 c

A Z eP 04:32:37.4 c

Pa Z eP 04:32:39.0 c

Hi Z eP 04:32:42.2 d

Ha Z eP 04:32:43.4 d

U PEZ is 04:40:00

iSS 04:43:31

iR 04:46:57

U PEN eG 04:44:29

C&GS card 81-6 2:

04:23:24.1

17.4° S., 167.7° E.

New Hebrides Islands

h about 33 km

Felt: Port Vila

Magnitude 6.6 (HVO).
Oct. 6, 1962

Table 5.--Distant earthquakes--Continued

Oct. 9

C&GS card 81-62:

01:56:20.4 ' 11.4° S., 167.9° E.

New Hebrides Islands

h about 33 km

Fe1t~

COOS card 84-62:

20:14:38.3

3.20S., 148.2° E.

Bismarck Sea

h about 33 kIn

Magnitude 6.3 (Pas)

6.6 (liVO).

u

Oct. 6

u

PEZ eS

iR

FEZ eS

iR

08:12:41

08:20:16

23:48:11

23:54:51

u

u

Oct. 13

u

PEE is

PEZ iR

PEZ el~

20:32:57

20:41:33

19:10:23

C&GS card 87-62:

23:31:21·7

17.5° S., 167.6° E.

New IIebrides Islands

h about 11-2 km.

Oct. 8

COOS card 84-62:

18:47:44'.5

12.6° S., 166.6° E.

Santa Cruz Islands region

h about 33 km.

Oct. 14

C&GS card 82-62:

21:56:22.2

24.3° N., 121.7° E.

Near east coast of Formosa

h about 29 km

Magnitude 6.0 (Pas)

6.3 (Pal).

C&GS card 84-62:

00:'29: 56.0

33.4° S., 179.3° W.

Kermadec Islands region

h about 33 km.

Oct. 14

M

U

u

Z eP

PEZ iP

eR

PEN is

22:08:08.9 c

22:08:09 c

22:31:21

22:18:03

M

A

N

eP

eP

eP

00:39:41.5 c

00:39:40.6 c

00:39:41.2 c

M Z Troax 10:22:41.3

A Z Tmax 10:22:49.3

D Z Tmax 10:23:04.0

U Z Tmax 10:22:48.8

,Pa Z TInax 10:22:30.1

Ha Z rlmax 10:22:30.1

Ka Z Tmax 10:22:40.1

Hi Z Tmax 10:22:36.1
Table 5.--Distant earthquakes--Continued

C&GS card 86-62:

12:39:12.0

33.3° Nv, 137.70E.

South of Honsu, J'apan

h about 335 km.

C&GS card 84-62:

18:02:32.9

51.6· N., 175.80 w.

Near Islands, Aleutian Islands

h about 21 km

Magnitude 5.3 (Pal).

Oct. 16

M z iP 18:09:33.5 d

A Z iP 18:09:35.1 c

D Z eP 18:09:34.3 d

U Z eP 18:09:34.4 d

Ka Z eP 18:09:21.3 c

Oct. 14, 1962--Continued

C&GS card 84-62:

09:41:09.6

38.8° N., 123.5° w.

orr coast of northern Calif.

h about 33 km.

Oct. 14

M Z Tmax 10:56:01.3

A Z Tmax 10:56:05.1

D Z Tmax 10:56:01.4

U Z Tmax 10': 55: 58.8

Pa Z Trnax 10:56:51.6

Ha Z Tmax 10:55:54.6

Ka Z Tmax 10:56:01.4

Hi Z Trnax 10:55:54.2

C&GS card 83-62:

10:14:32.,4

38.1° N., 124.00w.

orr coast of northern Calif.

h about 33 km.

Oct. 14

Oct. 17

M

D

Na

z

z

z

iP

iP

iP

12:48:51.2 d

12:48:51.5 d

12:48:50.9 d

No C&GS preliminary listing.

M

A

U

Pa

Ha

Ka

Hi

z

z

z

z

z

z

z

Trnax 11:52:00.5

Tmax 11:52:03~O

Tmax 11:51:59.6

Trnax 11:52:46.2

Tmax 11:51:45.4

Tmax 11:51:42.7

Tmax 11:51:53.8

Oct. 18

M z iP 08:49:53.1 c

A Z eP 08:49:53.7 c

Z ePcP 08: 50: 5'6"~ 1

D Z iP 08:49:53.5 c

Z ePcP 08:50:53.9

U Z eP 08:49:53.8 d

Pa Z iP 08:49:55.1 d

Hi Z iP 08:49:53.6 d

Ka Z eP 08:49:48.3 d

39
Table 5.--Distant earthquakes--Continued

Oct. 18, 1962--Continued

COOS card 85-62:

08:40:55.5

46.5° N., 149.6° E.

Kuri1e Islands

h about 140 kIn.·

Oct. 18

u

u

PEZ eR

PEN

16:07:53

17:22:37

Oct. 21

M Z eP 02:13:18.2 c

Z ipP 02:13:34.9

A Z iP 02:13:18.7 c

Z ipP 02:13:35.2

U Z eP 02:13:18.2 c

Pa Z eP 02:13:24.0 c

Na Z eP 02:13:27.5 d

Hi Z eP 02:13:17.2 d

Ka Z iP 02:13:15.3 c

C&GS card 84-62:

19:49:59.2

16.20 N., 93.5° w.

Chiapas, Mexico

h about 179 kIn.

Probably due to U.S. nuclear

testing in Pacific--pressure

waves start about 17:22:37

with 64 sec. period and

amp1itude of 17 rmn.

Pressure waves "sensed" on

island of Hawaii.

C&GS card 84..62:

04:34:38109

3~4° s., l45~3° E.

Bismarck Sea

h about 36 kIn ..

C&GS card 85-62:

02:05:22.7 .

61.1° N., 149.7° W.

Vicinity Anchorage, Alaska. Felt.

h about 80 kIn.

15:45:37

05:03:29

PEZ eR

PEZ eR

u

u

Oct. 22

Oct.22

19:59:42.2 c

19:59:41.3 c

19: 59:42.2 c

19:59:41.5 c

eP

iP

eP

eP

z

z

z

z

lvl

A

D

U

Oct. 18

Oct. 19

M Z

A Z

U Z

iP

iP

eP

23:54:12.6 d

23: 54: 12 .• 4 d

23:54:12.4 d

COOS card 85-62:

15:23:32.9

49.80 N., 155.80 E.

Northern Kurile Islands

h about 19 kIn.

C&GS card 86-62:

23:42:34.9

5.70 s., 130.3~ E.

Banda Sea

h about 111 kIn.

40
Table 5.--Distant earthquakes--Continued

Oct. 22, 1962 Oct. 27

u PEN 17:36: 57 u FEZ 17:09: 57

C&GS card 84-62:

09:06:10.1

73.40N., 54.9° E.

Novuya Zemlya

h=O

Magnitude 5.3 (Pal)

Pressure waves from nuclear blast

start about 17:36:57 with period

of 80 sec. and amplitude of 2 mm.

Oct. 25

Pressure waves from nuclear blast

start about 17:09:57 with a period

of 1~0 sec. and an amplitude of

8 rnm.

Oct. 28 ---

M Z i1) 15:12:31.9 c

A Z iP 15:12:31.9 c

D Z eP 15:12:31.4 c

U Z iP 15:12:31.8 c

Hi Z eP 15:12:33.3 d

C&GS card 89-62:

08:31:51.8

12.5° N., 88.0° w.

C&GS card 86-62:

15: 00: 17 .0

0.1° N., 123.6° E.

Northern Celebes

h about 61 kIn.

C&GS card 86-62:

22:53:01·3

16.0° N., 93.6° w.

Chiapas, Mexico

h about 110 kIn.

Oct. 30

A Z eP 08:42:24.0 d

D Z eP 08:42:25.0 d

U Z eP 08:42:25.0 d

Hi Z eP 08:42:26.1 d

Ka Z eP 08:42:27.6 c

23:02:46.8 d

23:02:46.1 d

23:02:46.7 d

23 :02: 45 ·7 d

23:02:44.0 c

eP

iP

eP

eP

iP

z

z

z

z

z

M

A

D

U

Pa

Oct. 28

M Z eP 08:20:35.4 d

Z ipP 08:20:50.1

A Z iP 08:20:34.8 d

Z epP 08:20:48.4

D Z iP 08: 20: 35 · 5 d

Z ipP 08:20:49.8

Hi Z eP 08:20:34.0 d

M Z iP 09:46:08.9 c

A Z iP 09:46:09.0 c

D Z iP 09:46:08.2 c

U Z iP 09:46:09.0 c

Pa Z iP 09:46:10.3 c

Na Z iP 09:46:07.2 c

Ka Z iP 09:46:11.7 c

Hi Z iP 09:46:10.5 c

C&GS card 86-62:

08:10:24.5

14.0° N., 90.4° w.

Guatemala--El Salvador border

Felt: western El Salvador

h about lCf7 kIn.

C&GS card 85-62:

09:34:14.6

3.00N., 126.7° E.

Molucca Passage

h about 33 kIn.

Oct. 27

41
Table 5.--Distant earthquakes--Continued

Oct. 30--Continued Nov. l--Continued

C&GS card--Continued

orr west coast of Nicaragua h about 80 km.

Oct. 30

C&GS card 88-62:

15:33:22.6

1.9° N., 133.0° E.

orr coast of Western New Guinea

h about 56 km.

u PEN 17:45: 58 Nov. 2

C&GS card 90-62:

14:46:39.2

10.0° S., 111.8° E.

South of Sumbawa

h about 33 kIn.

C&GS card 90-62:

22:53:34.2

43.2° S., 15.6° w.

Ofr coast of southern Chile

h about 33 km

Magnitude 5.8-6 (Pas)

5· 5 (Pal).

PEZ eR

PEZ eR 00:43:02

23:38:20

14:59:42.9 d

14: 59: 42. 7 d

14:59:42.1 d

14:59:43-2 d

eP

eP

eP

eP

z

z

z

z

u

u

M

A

D

Ka

Nov. 8

Nov. 4

C&GS card 86-62:

11:32:29.0

5.6° N., 82.6° W.

South of Panama

h about 33 km

Magnitude 6.5 (Pas)

5. 5 (Pal) ·

M Z eP 11:43:51.3 d

A Z eP 11:43:50.8 d

D Z eP 11:43:51.1 d

U Z eP 11:43:50.8 d

Pa Z eP 11:43:51.0 d

M Z Tmax 13:02:10

A Z Tmax 13:01:59

D Z Tmax 13:02:00

U Z Tmax 13:02:09

Pa Z Tmax 13:01:56

Na Z Tmax 13:01:48

Hi Z Tmax 13:02:06

Pressure waves from' nuclear blast

start at 17:45:58 with a period of

120 sec. and amplitude of 11 mm.

Oct. 31

Nov. 1

M Z

U Z

eP

eP

15:41~:50.2 d

15:44:50.0 d

C&GS card 90-62:

00:02:08.6

15.1° S., 75.6° w.

near coast of southern Peru

h about 33 kIn.

42
Table 5.--Distant earthquakes--Continued

M Z iF 22:11:31.1 d

Z ipP 22:11:52.8

A Z ipP 22:11:53·1

N Z eP 22:11:29.0 d

Z epP 22:11:53·3

C&GS card 91-62:

22:14:18.7

43.2° S., 76.0° w.

orr coast of southern Chile

h about 33 kIn

Magnitude 6.5-6.8 (Pas).

Nov. 14

Nov. 10, 1962

M Z iF 01:42:34.1 d

A Z iP 01:42:35.3 d

D Z iP 01:42:34.7 d

U Z iP 01:42:34.9 d

Pa Z iP 01:42:37.0 d

Hi Z eP 01:42:34.7 d

U PEZ eR 01:57:25

C&GS card 92-62:

01:33:15·0

43.7° N., 147.1° E.

Kurile Islands region

h about 24 kIn

Magnitude 6.0 (HVO).

Nov. 11

Nov. 11

u PEZ eR 22:58:29

M Z eP 16:19:03.7 c

D Z eP 16:19:01.2 c

Pa Z iP 16:19:04.0 c

Ha Z eP 16:19:06.0 c

Hi Z eP 06:19:03.9 d

U PEZ is 06:26:32

eR 06:33:37

COOS card 92-62:

16:09:51.6

12.9° S., 166.5° E.

Santa Cruz Islands

h about 77 kIn

Felt: Port Vila

Magnitude 6-6.3 (Pas)

6.1 (HVO).

COOS card 96-62:

21:59:16.1

0.30

S., 123.00E.

northern Celebes

h about 92 kIn.

Nov. 15

M Z eP 23:37:17.9 c

A Z eP 23:37:18.8 c

D Z iP 23:37:19.3 d

Pa Z iP 23:37:17.6 c

Hi Z iP 23:37:18.6 c

Ka Z eP 23:37:21.3 c

Ha Z iP 23:37:25.9 c

U PEZ eR 00:01:53

C&GS card 92-62:

21:45:20.5

48.9° N., 128.8° w.

Vancouver Island region

h about 33 km.

Nov. 11

Ha

Pa

z

z

Tmax

Tmax

22:30:02

22:30:18

COOS card 93-62:

23:25:15·1

8.70

S., 79.8° w.

near coast of northern Peru

h about 45 kIn

Magnitude 6 (Pas).
Table 5.--Distant earthq~akes--Continued

C&GS card 95-62:

06:52:57.8

25.1° N., 122.9° E.

Ryukyu Islands

h about 148 km.

Nov. 27--Continued

Z eP

PEZ is

PEZ iR

NoV. 16, 1962

D Z eP 07:29:28.1 c

Pa Z eP 07:29:28.2 c

U PEE is 07:38:25

U PEN iG 07:45: 57

PEN iR 07:48:13

C&GS card 93-62:

07:18:37.3

32.3° 8.;111.1° W.

Easter Island region

h about 43 km

Magnitude 6.5-6.8 (Pas)

6 (Pal)

6.6 (HVO).

Pa

Hi

Nov. 29

Hi

U

z

z

iP

iP

07:04:26.5 d

07:04:25.6 c

19:15:45.4 c

19:23:03

19:29:31

C&GS card 94-62:

14:21:30.6

2.80N., 121.7° E.

Celebes Sea

. h about 609 km.

C&GS card 96-62: 23:05:!~7 .4

21.5° S., 119.3° W.

Fiji Islands

h about 609 km.

Nov. 23

M Z eP

A Z eP

N Z eP

Pa Z eP

Hi Z iP

Ha Z iP

Nov. 17

M

A

D

Nov. 27

M

A

D

z

z

z

z

z

z

iP

eP

eP

iP

iP

iP

14:32:53.9 d

14:32:54.1 d

14:32:53.4 d

23:13:27.7 c

23:13:26.9 c

23:13:26.9 c

23:13:28.2 d

23:13-29.8 c

23:13:32.1 d

07:04:24.8 d

0'7:04:25.5 d

01:04:24.9 d

44

C&GS card 96-62:

19:06:37.6

11.3° S., 168.5° E.

New Hebrides Islands

Felt: Port Vila and Tongoa

h about 33 km

Magnitude 6.1 (HVO).

Dec. 1

M Z iP 01:57:10.0 d

Z iPP 01:58:23.6

A Z ..iP 01:51:11.1 d

Z iPP 01:58:27.8

D Z eP 01:57:11.1 d

Z iPP 01:58:28.7

U Z eP 01:51:10.6 d

Z iPP 01:58:24.9

U PEZ eR 02:06:25

C&GS card 96-62:

01:50:20.4

52.4° N., Y70.10 W.

Fox Islands, Aleutian Islands

h about 38 km

Magnitude 5.5 (HVO).
Table 5·*, --Distant earthquakes--Continued

Dec. 1, 1962

M Z iP 04:26:15-9 d

A Z iP 04:26:15fl2 d

U Z iP 04:26:15~4 d

Pa Z iP 04: 26 :16 •5 d.

Hi Z eP 04:26:18,,4 c

Dec '. 4--Continued

C&GS ca:rd--Cont'inued

Magnitude 5-5.3 (Pal).

Dec. 7

Dec. 1

C&GS card 98-62:

21:02:51.8

17.7° s., 178.7° W'.

Fiji Islands region

h about 620 kIn.

C&GS card 100-62:

04:16:59.6

29 .r( 0 S., 177.70 'W'.

Kermadec Islands

h about 52 kIn.

C&GS ca.rd 99-62:

18:18:29.1

15.2'"' B., 173.7'" w~

Tonga Island region

h about 33 kIn

Magnitude 6.1 (HVO).

M Z eP 14:13:03*8 d

D Z eP 14:13:03.6 d

U Z eP 14:13:04.4 c

Pa Z iP 14:13:o6.. l c

Na Z iP 14:13:04~1 c

Hi Z i'P 14:13:05~1 c

Z ipP 14:14:37

Ka Z iP 14:13:02 .. 3 c

U PEZ iP 14:13:03 c

FEZ ipP 14:14:38

PEZ iPP 14:15:18

U PEN is 14:20:46

PEN iG 14:28:02

C&GS card 96-62:

14:03:37.0

29.2u N~, 139~2Q E.

Bonin Islands region

h about 411 kIn

Magllitude 6.8-7 (Brk).

Dec. 8

Na Z eP 18:25:49.5 d,

Hi Z iP 18:25:54.5 d

Ka Z eP 18:25:55.4 d

Ha Z iP 18:26:00.8 c

U FEZ iP 18:25:52 d

PEZ iPP 18:27:28

PEZ eS 18:J2:14

FEZ iL 18:35:50

03:52:16

PEE eL

PEZ eR

C&GS card 101-62:

03:29:40.8

10.1° N., 103.6° w.

Ofr coast of Guerrero, Mexico

h about 33 kIne

u

M Z iP 21:10:03.9 d

A Z~ iP 21:10:03-5 d

D Z eP 21:10:02.8 d

U Z iP 21:10:03.4 d

Pa Z iP 21:10:05.2 d

Hi Z iP 21:10:06.2 c

Ka Z iP 21:10:06.0 c

Ha Zt iP 21:10:08.7 c

u

Dec. 4

Dec. 4

'~

C&GS card 99-62:

16:40:06.0

16.5° S., 172.8° w.

Samoa T~l.A.nd region

h about 33 kIn
Table 5.--Distant earthquakes--Continued

No C&GS preliminary listing.

C&GS card 99-62:

04:21:21.2

63.3° N., 149.7° W.

South ceptral Alaska.

h about 47 kIn.

C&GS card 103-62:

10:08:48·5

4.80S., 153.8° E.

New Britain

h about 94 km.

Dec. 8, 1962

Hi Z eP 21:40:05.2 c

Z epP 21:42:14·3

Pa Z eP 21:40:06.0 c

U PEZ iP 21:40:10 c

PEZ epP 21:42:23

PEZ iPP 21:44:22

FEZ iSKS 21:49:50

FEZ j-8P 21:52:30

FEZ eSS 21:58:16

FEZ eSSS 22:01:50

FEZ iG 22:08:30

U PEN eS 21:50:51

U PEE iPS 21:53:52

PEE isSP

PEE isPS 21: 56:-18

C&GS card 99-62:

21:27:22.2

25.8° S., 63.4° w.

Salta-Santiago

Del Estero Provinces

border, Argentina

h about 620 km.

Dec. 8

M Z iP 23:01:56.1 d

D Z eP 23:01:56.7 d

U Z iP 23:01:56.6 d

Pa Z iP 23:01:57.1 d

Hi Z iP 23:01:33.2 c

Ka Z eP 23:01:49.6 d

Ha Z iP 23:01:43.2 c

U PEZ eR 13:11:06

C&GS card 99-62:

22:55:01.2

50.5° N., 176.8° w.

Andreano:f Islands,

Aleutian Islands

h about 33 km.

Dec. 10

M

D

U

Hi

Dec. 12

M

M

M

A

D

Pa

Na

Hi

Ha

U

U

Dec. 13

M

D

Hi

z

z

z

z

z

z

z

z

z

z

z

z

Z

PEE

PEZ

z

z

z

iP

iP

iP

eP

eP

epP

ePcP

eP

eP

epP

ePcP

eP

eP

eP

eP

is

eG

eP

eP

eP

05:15:53.4 c

05:15:52.9 c

05:15:53.4 c

05:15:53.9 c

10:18:20.5 c

10:18:41

10:19:03

10:18:20.5 c

10:18:19.8 c

10:18:40

10:19:02

10:18:22.3 d

10:18:16.9 d

10:18:22.2 c

10:18:37.3 c

10:26:09

10:32:55

04:29:25.0 d

04:29:26.0 d

04:29:25.6 c
Table 5.--Distant earthquakes--Continued

Dec. 17, 1962

M Z eP 11:11:54.1 c

A Z eP 11:11:54.3 c

D Z eP 11:11:53.6 c

U Z eP 11:11:54.0 c

Hi Z eP 11:11:55.4 c

C&GS card 102-62:

11:00:16.0

2.1° N., 122.9° E.

Celebes Sea

h about 393 kIn.

Dec. 18

Decc 21

M Z eP 08:49:33 d

A Z eP 08:49:35 d

D Z eP 08:49:34 d

N Z eP 08:49:34 d

ePP 08:50:45

ePP 08:50:45

Pa Z eP 08: 1.~9: 35 d

Hi Z eP 08:49:34 c

U PEZ iP 08:49:30 d

PEZ iPP 08:50.54

PEZ is 08:55:06

PE'Z eG 08: 57: 54

PEZ eR 09: 00: 51~

C&GS card 104-62:

10:33:58.4

28.3° S., 178.2° w.

Kermadec Islands

h about 214 kIn.

M

A

Pa

z

z

z

eP

eP

iP

10:42:50.3 d

10:42:49.,8 d

10:42:51.5 d

C&GS card 102-62:

08:42:48.1

52.4° N., 168.5° w.

Fox Islands, Aleutian Islands

h about 33 ¥JD.

Magnitude 6.3 (Brk)

6. 5 (Pas)

6.8 (Pal)

6.8 (HVO).

Dec. 21

,~

Dec. 20 ----

M Z iP 08:55:27.2 d

A Z eP 08:55:26,.7 d

D Z eP 08:55:26.2 d

U Z eP 08: 55: 27.0 d

Pa Z eP 08:55:28.4 c

Hi Z eP 08:55:30.1 d

Ha Z iP 08: 55:31.8 d

C&GS card 105-62:

08:47:23.3

23.4° B., 179.3° E.

Fiji Islands region

h about 512 kIn.

M Z iP 09:07:26.3 c

A Z iP C~9:07:27 ·3 c

Z ePP 09:08:41

D Z eP 09:07:28 c

I~ Z iP 09:07:26.4 c

C&GS card 102-62:

09: 00: 41. t~

52.40N., 168.5° w.

Fox Islands, Aleutian Islands

h about 33 km.

Dec. 21

M Z eP 09:16:46 c

A Z eP 09:16:49 c

Z ePP 09: 17: 58

D ~. eP 09:16:49 c

Z ePP 09: 17: 58

N Z eP 09:16:48 c

47
Table 5.--Distant earthquakes--Continued

Dec. 21, 1962--Continued

C&GS card 102-62:

09:10:01.6

52.5° N., 168.5° w.

Fox Islands, Aleutian Islands

h about 33 kIn.

Dec. 21

M Z iP 09:42:58.7 d

A Z iP 09:42:59.9 c

D Z iP 09:42:59.1 d

N Z iP 09:42:59.5 c

Pa Z iP 09:43:00.2 d

Na Z eP 09:43:00.5 d

Hi Z . iP 09:43:00.0 d

C&GS card ]04-62:

09:33:15.5

42.4° N., 142.3° E.

Near south coast of

Hokkaido, Japan

h about 27 knl.

Dec. 22

M Z iP 01:01:40.4 c

D Z iP 01:01:40.5 c

U Z iP 01:01:40.6 c

Hi Z iP 01:01:44.5 c

U PEZ is 01: 09: 19

iSS 01:13:07

iR 01:17:09

C&GS card 106-62:

00:52:23.4

22.0° S., 170.1° E.

Loyalty Island region

h about 33 kIn

Magnitude 6.5-6.8 (Pas)

6.2 (liVO)

Dec. 26

Dec. 26

Dec. 22--Continued

C&GS card 102-62:

15:20:31.0

52.5° N., 168.8° w.

Fox Islands, Aleutian Islands

h about 47 kIn

Magnitude 6.3 (Pas)

6.4 (liVO).

23:54:21.0 c

23:54:22.2 c

23:54:21.7 c

23:54:21.5 d

23:54:13.9 c

23:54:15.2 c

23:54:21.5 c

23:54:22.7 c

22:33:22.3 c

22:33:23.6 c

22:33:23.5 c

22:33:23.0 c

22:33:23.1 c

22:33:24.3 c

22:33:22.1 c

22:33:17.9 c

22:33:11.5 c

22:33:22

22:45:18

22:40:06

22:43:22

Z eP

Z eP

Z eP

Z iP

Z eP

Z eP

Z eP

Z eP

Z iP

PEZ iP

PEZ iR

U PEN is

U PEE iG

C&GS card 104-62:

22:25:15·5

53.9° N., 168.7° E.

Komandorskie Islands

h about 33 kIn

Magnitude 6.5 (Pas)

6.4 (liVO)

M Z iP

A Z eP

D Z iP

U Z eP

Ha Z iP

Ka Z iP

Hi Z iP

Na Z eP

C&GS card 104-62:

23:46:14.7

54.0° N., 168.8° E.

Kormandorskie Islands

h about 33 kIn.

M

A

D

U

Pa

Na

Hi

Ka

Ha

U

iP 15:27:16.8 c

iP 15:27:17.6 c

iP 15:27:18.1 c

eP 15:27:16.9 c

iP 15:27:17.3 c

iPP 15:28:28.5

eP 15:27:19.0 d

eP 15:27:13.6 c

is 15:32;52

eR ' 15:35:40

Na Z

Hi Z

U PEZ

Dec. 22

M Z

A Z

D Z

U Z

Pa Z

48
Dec. 29, 1962

Table 5.--Distant earthquakes--Continued

Dec. 29--Continued

C&GS card 104-62:

04:12:09.0

2.4° N., 127.1° E.

Halmahera region

h about 33 kIn.

M

A

D

U

H~

Dec. 29

z

z

z

z

z

iP

eP

eP

iP

iP

04:24:04.7 d

04:24:04.6 c

04:24:04.1 c

04:24:04.6 c

04:24:06.0 d

C&GS card 106-62:

14:47:41.4

31.2° S., 177.9° w.

Kermadec Island region

h ~bout 43 kIn

Magnitude 6-6.3 (Pas) ·

u

M

A

D

U

Pa

Na

Hi

Ha

PEZ eS

PEZ eR

Z TInax

Z TInax

Z TInax

Z Tmax

Z TInax

Z TInax

Z Troax

Z TInax

11:06:25

11:23:13

12:36:38

12:36:25

12:36:28

12:36:39

12:36:03

12:36:41

12:36:22

12:38:02

C&GS card 104-62:

10:41:04.1

20.0° B., 69.9° w.

northern Chile

Felt: Arequipa, Peru

h about 46 kIn

Magnitude 6.8 (Pas)

6.5 (Brk)

6 (Pal).

Dec. 29

, l~ Z eP 14:57:11_5 c

A Z eP 14:57:11.7 c

N Z eP 14:57:11.7 c

U PEN eS 15:04:57

U PEZ eR 15:14:57
During this last quarter of 1962 ttfelt" reports were received from

the following people to whom we express our continued mahalo:

,.

North Hawaii

Dr. Tabrah

Mr. Godfrey

Kilauea Summit Region

Miss English

Mr. Cruz

Mrs. Hansen

Mrs. Mist

Mrs. Fraser

Mr. Ferry

Mr. Soriano

Mr. English

Mr. Moriwaki

Mr. Walter

Mr. Yamamoto

Mr. Ayres

Mr. Lake

Mrs. Yong

Mr. Moore

Mr. Loucks

Central Hawaii

Mr. Greenwell

Mrs. Lindsey

Mr. Eklund

Hawaii Prep. Academy students

Kulani Honor Camp

Kau District

Mrs. Billings

Mrs. Schattauer

Naalehu Police

Mr. Thompson

Hilo Region

Mrs. Bryan

Mr. Paiva

Mr. Ho

Mrs. Baldwin

Mrs. Brayton

Mrs. Schaffer

Mrs. Pacheco

Mr. Okamura

Mrs·. Ingledue

Puna

Mr. Isbell

Mr. Warner

Mr. Williamson

Mrs. Kimura

Mr. R. Ho

Mr. Thompson

Mr. Green

Mrs.~ Hoopai

Mr. Schattauer

Mr. Edwards

Mr. Albright

Kona Coast

Miss Greenwell

Mrs. Conley

Miss WalJace

Mr~ McKinkle

Mr. Johnson

Mrs. Hahn

Mr. Glass

Northwest Coast

Mr. McKay

50
Publications of special interest and

HVO numbered contributions, 1962

Decker, R. W., 1962, Magnetic studies o~ Kilauea Iki lava lake, Hawaii

[absQ]: Internat. Symposium on Volcanology, May 1962, Science

Council of Japan.

:1963, Volcanoes and geophysical lineaments [abs.]: Am. Geophys.

---U-n-i-on Trans., v. 44, no. 1, p. 114.

Doell, R. R., and Cox, A., 1963, The accura~y of the Paleomagnetic method

as evaluated from historic Hawaiian lava flows~ Jo~o Geophys.

Research, v. 68, no. 7, p. 1997-2009.

Eaton, J. P., 1962, Crustal structure and volcanism in Hawaii, in Crust

of the Pacific Basin: Geophys. Mon. 6, p. 13-290 (HVO Contr~ 179.)

Eaton, J. P., and Wentworth, C. K., 1962, The Hawaiian Volcano Observatory,

in Thrum's Annual l'All about Hawaii" (196~ ed.): p. 35-44.

Moore, J. G., and Richter, D. H., 1962, Lava tree molds of September

1961 eruption, Kilauea Volcano, Hawaii~ Geol. Soc. America Bull.,

v. 73, no. 9, p. 1153-1158. (HVO Contr. 178.)

1962, The 1961 flank eruption of Kilauea Volcano, Hawaii [abs.]:

---Am-.-Geophys. Union Trans., v. 43, no.. 4, p. 446 0

Pollard, D. D., and Eaton, J. P., 1963, Crustal structure of the Island

of Hawaii [abs.]: Seismol. SOCo America 59th Ann. Mtg., Berkeley,

April 8-10, 1963, program.

Richter, D. H., Moore, J. G., and Haugen, R. T., 1962, Recent growth

of Halemaumau, Kilaue~ Volcano, Hawaii, in Short papers in geology,

hydrology', and topography: U«;S v Geol Survey Prof. Paper 450-B,

po B53-B5f.). (H\?{} Cantr. 17~·.) :

u.S. Coast and Geodeti.c Survey, 1962, Hawaiian Islands, in United States

earthquakes, 1960: Washington, p. 32-34.

51