Hawaiian Volcano Observatory

1961 Quarterly Administrative reports

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

Compiled By Jennifer S. Nakata

Summary 24

October, November, and December 1961

By Harold L. Krivoy, Robert Y. Koyanagi, 

and Arnold T. Okamura 

Open-File Report 2007-1321

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 2L~

Octob~r. November. and December. 1961

By

He L. Krivoy, R. Y. Koyanagi. and A~ T. Okamura

Observatory Staff

Geology:

J. Go Moore

Dc Ho Richter (Scientist-in-Charge)

Co K. Wentworth

Geochemistry:

We U~ Ault

GQ Kojima

R. To Okamura

October 1963

Geophysics:

R. Yo Koyanagi

He. LQ Krivoy

A~ T Q Okamura

Support:

JIa Cta Forbes

w. H. Francis

B. J .. Loucks

A. Yamamoto
Contents

Chronol,ogical summary----------------------:'"-------------------- 1

Tilt~ng of th~ ground around Kilauea caldera--~---------~-~---- 2

Seismic surnmary-------~~=~~~==~~~~~-~~~~-~-------~--~--~------- 2

Recent HoVcOo contributions-.-c=caD--aa-.----.,..,.----......---------------- 31

Illustrations~~short list

~igure 1. Tilting of the ground around Kilauea caldera~~------ 6

2 a East-west and north-south components of tilt

revealed by daily readings at the short-base,

liquid-level tiltmeter in Uwekahuna vault~--~----- 7

3 0 Map of the island of Hawaii showing seismograph

stations operated by the Geologica~ Survey

and localities mentioned in text------------------ -9

Tables--short list

Table Ie Tilt coordinates at -Uwekahuna vault.....- .......--*---------- 4

2 0 Tilt coordi~ates and changes at bases around Kilauea

caldera-~--------~----~-----~----------~--~-------- 5

3 0 Tilt coordinates and changes at 'the Uwekahuna field

tilt-base-----~---~-~-~~~~-~---=-~---~------------- 8

4 0 Numbers of earthquakes and minutes of tremor recorded

on seismographs around Kilauea caldera----~-------- 10

5e Local earthquakes recorded by seismographs of the UoSe

Geological Survey~-~~~~-~~-=~w--~~~-~~----_...------- 11

6, Distant earthquakes~-~-------~~~~~~~--~-------~------22
HAWAIIAN VOLCANO'OBSERVATORY SUMMARY 24

By H. Lo Krivoy, R. y~ Koyanagi, and Ao T. Okamura

Chronological summary

Coincident with the injection of magma into a"long section of

Kilauea's east rift zone during the brief 1961'eruption (Septo 21-25),

the summit of the volcano subsided rapidly. Although the total

subsidence during the 1961'eruption was only about one half as great

as that associated with the 1960 flank eruption at Kapoho, the rate

of subsidence in 1961 was far greater than in 1960. In contrast to

the 1960 subsidence, which continued slowly for months after the

eruption, the 1961 collapse terminated with the' eruption, and the

cycle of inflation at Kilauea which began late in 1960 resumed.

Slow swelling of the volcano continued through the rest of the year.

The tilting diagram (figo 1) showing the 1961 collapse is based

on changes between July 23 and October 8, and it obscures the high

rates of subsidence that occurred during the brief eruption. A more

detailed, qualitative picture of swelling and subsidence at Kilauea

is provided by a graph of the daily readings of the short-base

liquid-level tiltmeter in Uwekahuna vault (fig. 2), which summarizes

the history of tilting at that station from July 1956 to August

1962. For comparison, tilt coordinates and changes from December

1959 to October 1961 at the Uwekahuna field tilt-base are listed in

table 3.

During the later stages of the 1960 collapse, a great swarm of

shallow earthquakes originated in and around Kilauea caldera. During

February and March 1960. about 350 earthquakes were 'reported felt,

and thousands were recorded by the seismographs. No such swarm of

earthquakes at the summit of Kilauea accompanied the 1961 collapse,

although many earthquakes originated along the rift zone just before

and during the eruption 0 Apparently the collapse in 1961, like the

first week of collapse in 1960, did not strain rocks surrounding

the shrinking reservoir beyond the elastic limito The lower

pre-eruption level of the Kilauea summit, the smaller total subsidence, and the earlier cessation of subsidence in 1961, as compared

to 1960, might also have checked the development of a swarm of

collapse earthquake~ in 19610

Feeble shallow earthquakes at Kilauea caldera averaged about

20 per day throughout the quarter, A sequence of earthquakes from

Kilauea's southwest rift zone continued through the quarter; daily

counts of these earthquakes ranged from 1 to 31 and averaged about

10.

The most important seismic activity of the quarter originated in

a zone about 30 krn beneath Halemaumau (southwest edge of Kilauea

caldera) 0 Earthquakes from this source became prominent when Kilauea
began to reinflate in the fall of' 1960, following' the 1960 collapse.

During the last quarter of 1961 quakes of this family occurred in

groups of 40 or 50 over periods of 2 or 3 hours '0 About 'ISO of them

were large enough for study 0 Foci of these" earthquakes seemed to

follow no regular pattern of migration, but they showed a "normal"

scatter which indicated a source region that was 'broader than it was

high 0

Daily counts of these earthquakes -are shown in table 4. Only

one earthquake of this group had a magnitude larger than 20 4 during

October; but in November there were 34 such earthquakes, and in

December there were 17 0 The largest earthquakes from this deep

source occurred on November 21 (magnitude 3 Q 8).'November 23 (magnitude

3 0 8). November 2S (magnitude 30 7). December 2 (magnitude 3 0 9), and

December 31 (magnitude 3 0 9)0 Earthquakes of'magnitude 20 9 were at

the threshold of sensibility. and nearly all larger ones were

reported felto Ten were 'reported felt'during November and 5 during

December 0

Most of the other earthquakes felt in Hawaii during this quarter

originated in Konao They are listed in table 5.

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 ~.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 beguno Increasing tilt

coordinates correspond to northward and eastward tilting of the earth's

surface. that is, to a relative subsidence toward the north and easte

A l~unit change in coordinate corresponds to a'tilting of 1 microradian (1 mm per km) in the direction indicated o

Seismic summary

Events recorded by the U0 8 0 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 ope 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 Hawaii are listed in

table 40 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 0 5 or

2
greater are generally sufficiently well recorded 'to be located with

greater precision; they are listed individually in' table 5. - Data on

identifiable phases from distant earthquakes' are listed in'table- 6.

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

and essential data on the stations are given in Summary 21.

3
Table lo--Ti1t coordinates at Uwekahuna vault, October, November, and

December, 1961

N-S . ,

Date E-W Date N-S E-W

" .

Octo 1 410 588 Nove 19 412 562 ......

8 410 584 26 414 556

15 411 577 Dec. 3 415 554

22 412 572 10 415 556

29 414 568 17 415 555

Nov~ 5 408 569 24 415 554

12 409 566 31 416 552

4
Table coordinates and changes at bases around Kilauea- caldera (see figo 

Tilt base Date Tilt coordinates Rate (10=6 rad/mo) D

(location) (1961) and direction of 

tilting since r

-

..

N=>S Ec=W last reading 

:

Uwekahuna

(19°25 0 5' No, 155°17 0 4' Wo ) Octo 6 358 0 9 56502 54 0 8 So 32° Eo Sep

Tree Molds

(19°26.3' Not 155°17 0 3' WG) 7 389,5 52806 27.8 S!) 16° Eo Jul

Sand Spit

(19°24 0 1' No. 155°16 0 8' Wo) 11 696.2 54 0 0 So 15° Ec 

Kalihipaa

(19°21.4' Ne • 155°1503' W" ) 8 580 0 4 421 0 3 16 6 4 No 20° W. 

8 580.3> 421 0 3 34 0 3 N6 29° We Sep

Keamoku

(19°25.1' N6• 155°19 0 0' w. ) a 443.2 677.8 49.7 Sa sao E. Jul

Kamokukolau t

(19°22 0 7' N. , 155°16 0 6' We) 7 769/94 469.4 90 0 0 No lao We 

Kipuka Nene

(19°19.4' N., 155°16.7' Wo ) 9 516 0 3 495 t 4 3 41 0 No 34° w. 

Hilina Pa1i

(19°18.2' No. 155°18.6' W0) 9 511.0 497 0 8 2 tl 9 Ne 32° We 

Mehana

(19°26.2' N a • 1550 14 e 3' Wo) 10 524 0 5 527.6 10.8 S" 47° We 

Nov. 2 525.5 530ga 4 8 5 N. 72° Eo Oct 
\ Kal

o

• KN

1--1

2~ X 10-6 RADIANS I MONTH

I

5 KM

Figure l.--Tilting of the ground around Kilauea caldera. July 23. 1961.

to Oct. 8. 1961. The vector depciting tilting at a given tilt

base points in the direction of maximum relative subsidence and

has a length proportional to the rate of tilting dur~ng the

measurement interval. Closed circles represent fie¥d tilt bases;

open circles. short-base water-tube tiltmeters.

6
NORTH

TILT HISTORY AT UWEI<At«JNA VAULT 200-INCli. LIQUID-LEVEL "'ETER E-W AND N-S COMPONENTS

NORTH

I

Figure 2.--East-west and north-south components of tilt revealed by daily readings at the sh

level tiltmeter in Uwekahuna vault.

Data are plotted from July 17, 1956, when these readings began. The plots represent co

tilt based on 7-day and referred to an arbitrary base value of 500 parts per m

January 1, 1958. Departu from this base, therefore, represent changes of inclinatio

in parts per million, or microradians. The curves are further keyed (along the date-li

to important periods of both geological and instrumental change.

Tilt variations toward the north and the west represent inflation of Kilauea centered 

at Halemaumau. Important inflationary peaks were reached on January 12, 1960 and Septe

with a third cycle of swelling in progress on August 15, 1962--where the curve present

Conversely, deflation such as Kilauea experienced on January 13, 1960 and September 20

demonstrated by inclination of this tilt base toward the southeast.
Table 3o .--Tilt --.....-----~-...- ........~IJ!I!!.II~~~......M!I!~------

[In general. tilting toward the northwest at Uwekahuna indicates swelling

of Ki1aue~ and tiltin~" toward" the south~ast indicates subsidence]

..." ...........a

Dates Tilt coordinates Rate Azimuth

(u-rad/mo)

'.. ~:

N-S E-W ~~

12/28/59 to 3/28/60 518 480 i '.'" 118 So 34° E. -"

3/28/60 to 7/5/60 219 679 19 S., 32° E.

7/5/60 to 9/16/60 216 678 1 S. 21° W.

9/16/60 to 11/29/60 283 609 39 No 46° We

11/29/60 to 2/23/61 375 548 38 N. 34° W.

2/23/61 to 5/8/61 444 514 31 N. 26° We

5/8/61 to 6/26/61 A 468 503 16 N. 25° We

6/26/61 to 7/22/61 477 492 16 N e 51° w.

7/22/61 to 9/22/61 404 546 44 Se 37° Ee

9/22/61 to 10/6/61 360 565 55 Sf) 32° E.

8
Upolu Point

EXPLANATION

20·

Capt

Kumullohl

Kolopano

10 15 Mil..

10 20 25 Kllom,',,.

• SeismoQraph Station

• Town or locolity

Contour intervol 1,000 feet

Ootum i, m,on 110 1,.,1

Topoorophy by US G,oloOlcol Sur.'y

Apuo Point

Laupahoehoe -+- _

,-----------------------+-----------I'·

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

operated by the Geological Survey and localities mentioned in the

text. Epice'nters of local earthquakes are given in terms of

geographic coordinates, which are indicated at the edges of the map.

9
Table 4.--Numbers of earth uakes tremor recorded on

U, M, A, D, and N

Table 4

ra hs around 

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

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

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

Kilauea.

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

Pit seismograph.

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

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

adjacent portion of the Kaoiki fault system;

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

8. earthquakes from a source about 30 km beneath Halemauma

edge of Kilauea caldera);

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

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

(1961) slides caldera rift rift km

Deep Intermediate Shallow

1 2 3 4 5 6 7 8 

Oct. 1 -.._..

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

---

......

- 3 36 10 1 5

---

2 ..

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

......_-..- 1 35 14 1 1 1

3 ..__ .._- _-.._-.. 2 18 7 2 2

---

4 .. .._-...._.._...... ----..-- 1 25 1 -.-,-.. 2 2

5 ----

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

3

----------

21 19 ........ -- -.....

6 21

..

-------

----------

22 8 ---- 1

---

7 33 --------..-..- ------- -.......-----.. 28 12 5

---

8 _....- -_..--------- ------- 1 29 11 1 2 ---

9 ----

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

3 7 53 18 4 1 1

10 4

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

5 16 54 9 1 3 --..

11 ----

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

12

----------

13 13 1 3 2

12 ---- ..-.. .._-_.. 5 2 9 6 ----- 1 -_.. 

13 32 _.._--.. .. ------- 2 38 8 ---- 4 1 (
14 ..-.. .. -------

----------

33 8 5 ---

15 --..,-.... ......

-

------- 1 18 5 1 3 1 (

16 .. ..--- ..-.. -..__.. .._..- 12

2

2 6 .... 

17

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

-------

----------

23

7 1 2

_

... 

18

------------ --_.-... ..__..-.... 15 8 1 3 (

19

-

.. ....

--

.. .. ..

-- 17 6 1 3 

20

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

-------

----------

21

2

4 1 (

21

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

-_....

_

..- .. ....

- 24 7 5 1 (

22

2 -------

----------

7 6 1 5 ..--

23 -_.._..........__.. ------- ---------- 27

2 1 5 ---

24

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

-------

----------

19 5 5 ---

25

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

------- 1 22 1 1 1 ---

26

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

------- 1 20 10 1 ---

27

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

-------

----------

1E> 9 2 ---

28

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

.... .._-- ---------- 17 9 2 1 (

29

3 ------- 3 20 10 6 ---

30 3 -------

----------

12 8 3 3 _.._

31 40

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

------- 1 24 7 _...

Nov. 1 -.._--_.....--..... ---......- -_... 40 2 2 4 (

2

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

------- 1 30 5 1 4

_

.. 

3

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

-----...-- 1 40 9 2

2

4

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

-------

----------

40 11 1 25 1 (

5 --....

-

.._...... ------- ---------- 46 30 25 1

6 --------_..-- ------- ---------- 40 8 1 8 1

7 ...._-.... .. ------- ---------- 40 5 10 1 

8 ....

_

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

2 17 12 1 5 1

9 2 -------

----------

25 10

2 6 1 

10 .._-_...._--_..- ..-_....-. .. ---------- 30 16 3 1 

11

_

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

----------

50 11

4

_

..._

12

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

---------

----------

30 8 16 ---

13

....- --_........ ---_.._.,----- 25

4 18 1 

14

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

-

..._.... 23 15 1 12 -_

15 ..-..-- -........

_

.. -

...--_.. ..- 30 7 6 .... 

16 ------------- ------- -----....-.... 24 13 1 19

2

17 ..--_.._---.. ..._.... ....._-.. ..- 35 37 42

2

18 ....

_

..

__

..

.._..- 2 30 23 3 --

19 .. ----....... ---------- 26 13 1 54 ---

20 ------------ -_.. ......_--_.-_.. 18 6 49 ---

21 ------------ ------- .... 56

6 150 1 

22 ........ .. .. ------- ---------- 20 11 61

2

23 .._-_...._----- 8 1 19 5 55 ---
24 ---- --..--_-._---_.--

_

.. ..- _.._....-.. ..- 17 11 ---- 30 2

25 -_..- ..-..-_....... ------- ...... 10 14 ---- 41 2

26 .._--...._------ ....--_.... ...............--- 32 12 ---- 32 -... 27 ---- .._---_.... ..- ..-.....- 29 11 2 28 .....

28 ......- ...........-_----- ..- .._- 32 21 ..---- 18 ....

29 .... ....-.-..-........_- --............ ......_-_..--- 16 12 ..-...- 5 1 

30 ---- ------------- ..---_.... ....

_

......_-- 11 16 19 2

Dec. 1 ---- .._..-........

_

..- 2 --_..--..----- 11 7 ---- 6 

2 -_..

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

....--_.... ..- 8 7 63 

3 ----

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

..........._- 1 10 6 ....._- 35

4 ----

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

----

..

-- ------

........ 26 11

_

....- IS 2 

5 ----

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

-------

----------

28 10 8 2 

6 ---..-- -----_.. .. 19 21 5 .._-- 13 1

7 ----

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

..- ........- 2 12 11 ---- 22 1

8 3 ...._--------- ..- ..---- .._---..-..-- 18 11 ...... -. 11 ... 

9 ----.-,......_--- .. .._-_....- 40 7 1 12 1 

10 ---..-- 2 _...... .. 4 17 7 .. 5 1 

11 ....-.- --_..._-------.. -.-._....- .... 2 14 12 ---- II 1 

12 ......... ----_......_-_.. --..---- ----.._..---- 22 6 1 9 1

13 ---- I ....... .. 2 28 5 .. 4 --

14 19 ------------ _-._---- 8 26 6 --.... 2 ---

15

_

....-

.. ....- ......_-.... 2 12 15 1 28 .._

16 ..--- ------------ ..-- -----.._---- 6 15 ---- 22 2

17 .._..- 5 ------- 5 14 10 ---- 13 2 

18 ......- .... ........ ------- 1 18 18 ........ 12 1 

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

_

..-----_.... 7 6 ....-- 18 ---

20 ----

------------ 2 18 16 1 4 1

21

_

..

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

.... 2 23 25 ----... 13 1 

22 --_...- 2 ....- .._-- .. ..--- 46 20 1 20 .. 

23 5 .._....

_

..

......

---

.. 32 23 ---- 10 .. -. 

24 ----- ------------- --..-.._- .._.. ..- 70 31 15 1 

25 -_...- 5 ........__.. 1 38 9 2 2 3

26

_

.. 5 ------_.. _-.--..---_.. 50 12 ---- 7 1 

27 .. -------_.._-- 2 _......._-_..--.. 50 10 .. 7 2

28 16 ..-.. .._..__..- ......--..... .. 59 3 -_...- 24 --

29 12

_

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

_

.. ..

..--_.. ..-..- 51 14 ---- 12 ---

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

_

.. . .. .. .. 63 10 1 7 3

31 2 --...._-...._--- -_....__... 6 34 12 1 55 1
Table 50 ==Loca1 earth uakes recorded.

October,

the UoS o Geolo ical Surv

er, -1961

[Except for smaller earthquakes of 'special interest j only earthquakes with magnitudes o

greater are listedo Origin time is Hawaiian standard o

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

These are all members of a continuing family of quakes noted in other reports as wel

were especially predominant in this quarter and thus are listed in this abbreviated 

The most accurately located mean epicenter for this group is under Halemaumau at a d

km (190 24 0 1 v 155°17 0 1' W)o 

Date Time Magnitude Epicenter 

(1961)

h m s Lato No Longo We) ,Des_cription - - -

19°1505' 155°30 0 3' of

... -.-

Octo 1 22 10 25 0 0 2 0 5 6 km NNW 0 Pahala-.c===---· At 

2 00 17 46 0 5 2 0 3 19°18.8' 155°0500' 45 km So of Hi10, Eo rift 3 km 

zone of Ki1aueac

4 06 01 25 0 7 2 0 3 19°22 8 7' 155°1908' 6 km Wo of Ahua 25 

metero

-5 02 25 37 0 5 3 0 3 19°29 0 8' 20 km ESEo of Kealakekua- 3 km 

6 12 46 2 0 7 19°09 0 1' 155°26,,7' 6 km SEa of Paha1a j SW o 8 km 

rift zone of Ki1auea o 

15 19 05 22 0 3 2 0 5 19°37.1' 155°16 0 2' 22 km SW o of 55 k

18 08 34 2905 2 0 6 19°47 0 7' 155°39$8' 7 0 5 km So of Waikii--c=--- 8 km 

18 17 15 3205 20 6 19°46 0 4' 155°49.9' Beneath PUll Waawaa o Felt At s

in No Kona and.Kamuelao
Table earth the UoSo. Geolo ical .Surve

.1_9.6!1116 1 =>'?ContJ.nue

Date Time Magnitude Epicenter 

(1961)

h m s ' -Lato No L.ongo Wo 'D.escript ion

==-

Oct: 22 09 49 4505 2 0 8 19°11 0 7 9 1550 35 0 3 i 14 km No of Naalehu====== 3 km 

23 05 04 49 0 0 2 0 6 KM 300

29 07 25 21 0 0 2 0 2 19° 2902 Ii 1550 51 0 2 w 10 km SE o of Kealakekuac 

Felt near Kealakekuao

29 11 39 09 0 7 20.5 19°4302 9 1550 13 0 6 Y 15 km Wo of Hilo========= 30, 

;

Novo 3 09 13 14 0 5 2 0 6 19°53 0 0' 155°34 0 9' 18 km SEo of Kamuela--=-==-= At 

'"

4 06 24 29 0 0 3 0 0 19°22 0 1' 155°29 0 4' 18 km NNW o of Pahala==-==- 8 km 

5 06 56 27 0 0 3 0 0 19°47 0 2' 155°34 0 8' 11 km SEo of Waikiio 12 0 

Felt near PUll Waawaao

-

5 07 20 52 0 3 205" KM 300

19°2105' 155°32 0 4' 20 km NW o of

-

.

5 14 14 37 0 5 2 0 6. 12 0 

8 11 51 00 0 5 2 0 4 190 26 Q 5' 155°1805' 11 km SEc of Mauna Loa 

seismometerQ

10 05 38 17 0 4 3 0 4 19°25 0 8 9 1550 18 Q 8' 11 km SEo of Mauna Loa 

seismometero. Felt in

Hilo and Kilauea.caldera

region.
recorded b

er, November-;

Surv

Date Time Magnitude Epicenter 

(1961)

h ID- S Lat. No Longo Wo .. De·scr.iptiJJn .'

- - -

..

Novo 12 15 45 22 0 0 2 0 7 19°2005' 155°09 0 8' 29 km 5Wo of Pahoa. Eo rift 

zone of Kilaueao

14 04 51 27.0 3.3 19°25$4' 11 krn 59 of 

Felt in Honaunau'.

16 06 17 12.4 205 KM 30.

16 15 10 1601 20 6 KM 300

16 16 50 41.9 2.7 KM 30.

16 19 03 51 0 2 2.5 19°12.9' 155°21.2-' 30 km NE. of Naalehu------- .35 

17 17 48 47.0 2.4 KM 30.

17 19 33 26.0 2.5 KM 30e

17 19 56 49 0 5 3.0 19°44 0 3' 155°57.6' 25 km NNW. of Kea1akekuao At 

Felt near Puu Waawaao

17 23 22 37 0 4 2 0 8, KM 300

18 03 44 OOet5 2.5 KM 300

18 08 09 14 0 5 3,0 19°26 0 3' 155°54 0 7' 9 krn S. of Kealakekua. At 

Felt throughout Kona6

18 09 41 01 0 5 2 e 7 KM 30 c
Table earth

Date Time Magnitude Epicenter 

(1961)

Description

.

-

h m s Lato No Longo Wo

- .- ....

Novo 20 01 40 24 0 0 2 0 9 KM 300

20 03 14 07 0 1 2$6 19°21 0 7' 155°06.4' 8 km Eo of Makaopuhi 5 km 

Crater, Eo rift zone

.-

of Kilaueao

20 19 40 27.2 2.5 KM 30.21 00 41 25.5 2.9 KM 30. Felt on Eo rim

of Kilauea caldera.

21 02 42 56 0 9 2.4 KM 30.

21 23 22 39.3 3.a KM 30. Felt in Hilo,

Kilauea caldera region,

and No Kana.

21 23 25 56.8 2.4 KM 30.

21 23 27 05.4 2.6 KM 30.

21 23 46 01 0 9 3 0 0 KM 30. Felt on Eo rim of

Kilauea caldera.

21 23 48 1809 3.0 KM 30.

22 00 Ct9 20.7 2.7 KM 3041

22 03 27 35.5 2.9 KM 30.
Table 50 :==Loca1 earthquakes recorded by seismographs of the UCl S0 .. SurveY

October, -- November," December:,

Date Time Magnitude Epicenter 

(1961)

h m s Lato No Longo WO Description"

- - -

..

Novo 22 05 44 48 0 1 3 0 1 KM 300

22 10 55 55 0 5 3 0 2 KM 30 6 Felt on No rim

of Kilauea calderat)

22 16 32 41 e B 2.6 KM 30 0

23 06 39 41 0 2 2,,4 KM 30e . - ....

23 07 24 54.5 2 11 7 KM 30.

23 16 29 36 0 6 3.0 KM 30. Felt on.NE. rim

of Kilauea caldera,

23 17 09 55.7 3 0 3 Do.

:,

23 i7 14 30 0 6 3 0 8 KM 30 41 Felt throughout

Kilauea caldera re'gion.

23 17 30 41.4 2.5 KM 30.

24 05 35 40.7 2.9 KM 30. Felt on NE o rim

of Kilauea c.a1dera•

.,

24 10 31 11.8 2.7 19°18 0 1' 155°07.7' 17 km SEe of Ahua seismo. .8 ki

meter.

24 20 46 55.5 2 ca 4 19°21.2' 155°47 05 ' 23 km SE.of Kea1akekua--- At 
Table earth

Date

..

Time Magnitude Epicenter 

(1961)0.

h m s Lat 0 No Longo Wo Desc.ription 

-

Novo 25 06 14 11 0 0 2 0 4 155°1106' 12 0 5 km SEo of Ahua 12 

seismometer 0

25 06 14 2105 2 G 7 19°17 0 9' 155°0805' 17 km SE o of Ahua 3 k

seismometer 0

25 13 26 03 0 0 3 0 7 KM 300 Felt in No Kona

and Kilauea caldera

area 0

25 20 22 5505 2 0 '3 19°44 0 0' 155°3101' 47 km Wo of Hilo--------- 8 

27 01 32 35 0 8 2.8 KM 30 0

27 04 51 23 0 5 3 0 4 KM 30. Felt from Kilauea

caldera region to Kona.

27 09 44 45 0 5 2.5 KM 30.

27 15 55 40.0 2.5 KM 30.

30 14 30 49 0 5 2.6 KM 30.

30 16 51 17 0 5 2.4 KM 30.

30 18 58 46 0 5 2 0 6 KM 30 0

30 20 14 26 0 1 2.5 KM 30.
Date Time M.agnitude Epicenter 

(1961) .-

-. h m -s Lata Nt) Longo Wo .- Descrip.tion

--

- -

Deco 1 06 37 43t)6 2 G 8 KM 300

1 07 33 58 0 0 2 0 9 19°22.2' 155°42 c O' 23 km E, of Hookena. SW o. At 

rift of Mauna Loao

1 09 09 38.1 2.6 KM 300

2 18 57 59 c 8 3G9 KM 300 Felt throughout

the island o

-

-

2 20 28 45.0 203 KM 30.

3 01 01 35 0 8 2.6 19°24.2' 155°25.3' 8 km NNW. of Desert 5 km 

seismometer.

3 11 33 37 0 6 2 0 4 KM 300

4 01 06 5003 2.3 KM 300

4 04 12 17 0 5 2.3 KM 300

4 14 08 03.5 3.1 KM 30.

4 23 27 50 0 0 2.6 19°19 0 8' 155°44 0 6' 20 km SEo of Hookena. SW o At 

rift of Mauna Loa.

-

5 01 54 19 0 0 2 0 5 19°18 0 7' 155°09.2' 30 km SWo of 3 

-

-
Table earthquakes recorded by seismographs of the UoSo Geological Survey

October, November, and December,

Date Time Magnitude Epicenter 

( 1961)

h

-

.

rn s Lat$ L'ongc Description

- - -

Deco 5 06 32 52 0 0 2 0 9 19°2102' 155°47.3' 13 km ESEo of At 

-.

5 13 19 31 0 8 2.9 KM 30 05 17 11 13 e 8 2 0 4 190 21e2' 155°47 0 3' 13 krn ESE, of Hookena--- At 5 20 41 28 e O 3 0 3 19°10.0' 155°38.3' 13 km NW& of Naalehu. 25 

Felt in Pahala.

6 03 08 05 0 5 2 9 6 19°13.6' 155°00.3' 21 km SSW. of Pahoa----- 35 

7 09 42 59 0 7 2 0 6 KM 30.

9 16 59 19 0 8 2.9 KM 30 6 Felt on Eo rim

of Kilauea caldera.

9 19 37 52 0 5 2.7 19°44.5' 155°57.4' 12 km NNE e of Kailua---- 8 kr

10 20 47 34.0 2 0 6 19°59.7' 155°31.0' 10 km SW. of Honokaa---- 

11 17 03 1803 3.0 19°24.3' 8' 17 krn Eo of Hookena----- At 

11 21 55 31 0 5 3 0 0 KM 30. Felt throughout

Kilauea caldera

region.

13 01 36 32$5 2.6 KM 300
Table earth

October,

ical..Surve

.

-

Date Time Magnitude Epicenter 

(1961)

h m s Lato No Wo Description - - -

DecG 15 10 37 20 0 9 21'5 190 31 e 4' 154°50 0 3' 35 km SEo of Hil0. Eo 8 km 

rift zone of Kilaueao

15 11 17 57 G 4 3,2 KM 30 0 Felt on E G rim

of Kilauea caldera G

16 20 48 58 0 8 2 0 3 19°37 0 1' 155°16.2' 21 km WSW. of Hi1o------ 1205 

17 05 46 15 0 0 2 0 2 KM 30e

17 07 19 44.4 2.3 KM 30.

17 07 50 52 0 5 304" 190 37 Q 7' 155°51 0 2' 10 km Eo of Ho1ua1oao 1205 

Felt near Kealakekua.

21 03 04 55 t 5 2.5 19°57 0 7' 155°19.6' 10 km SW o of Laupahoehoe 

22 05 57 43 0 1 2 0 8 19°22.8' 155°48.7' 10 km Eo of Hookena----- 3 km 

23 06 37 1305 2.6 19°20.7' 155°30.6' 16 km NNW. of Pahala---- 

23 08 18 32 0 8 2.5 KM 30.

24 10 54 40.6 3.0 KM 30.

"

24 22 29 3409 2e>S 19°26.2' 155°26.1' 9 km SW e of Mauna Loa 8 km 

seismometer.
Table earthquakes recorded by seismographs of the UcSo.Geological Surve

October, November,' and December', ,

Date Time Magnitude Epicenter 

(1961) :

h m s Lato No Longo Wo

.- - -

Deco 25 10 17 45 0 0 2 0 4 19°28 0 3' 155°28 0 3' 30 krn No of 5 km 

26 19 48 04 0 3 2Q9 1902g e 2' 155°50 0 9' 8 km ESEo of Kealakekua.. 3 km 

27 17 14 27 0 7 2 0 7 19014 c 2' 155°3500' 19 km N. of Naalehu----- 

28 00 28 46 0 0 2 0 7 19024 t 2' 155°06.1' 20 km SW o of Pahoa, Eo 

rift zone of Kilaueae

28 22 42 301 KM 306

28 22 43 33.6 2.5 KM 30.

30 12 09 30 0 0 2 0 6 19°46 0 7' 155°26 0 3' 37 km WNW 0 of Hilo------ 8 km 

30 13 08 22 0 0 2.5 KM 30 1t

31 06 03 23.2 3,00 15.5°31.8' 5 km No of Pohakuloa 0 8 km 

Felt in Pohakuloao

31 07 43 44 0 8 2 0 9 19°20 0 8' 155°26 0 3' 35 krn NW. of Naalehu---- 3 km 31 08 13 06.8 2 0 5 19°14" 5' 155°12 0 8' 40 krn SW o of Pahoa------- 5 km 31 08 52 09'09 3 0 9 KM 30e Felt on Eo rim

of Kilauea calderae

31 11 38 17.0 3.6 20°54' 154°46' 139 km NNE G of Hilo----- 124)5 

31 19 07 22 0 7 2e9 KM 30 0
Table 6 o -·Distant earthquakes

[Times are reported in Greenwich civil time which is 10 hours faster

than Hawaiian standard- -time 0 A "c'" following the time of P

indicates compressional' first-motion; a "'d'" indicates dilatatio'nal

first motion o Station"symbols, locations, and instrumentation are

presented in Summary'2l o ' Magnitudes calculated from the Hawaii

seismograms are followed "by' '(HVO) .' Locat ion of epicenter. origin

times', and focal depths. ,- and .magnitudes 'reported by other institutions are t'aken from-·t.tpreliminary· Determination of Epicen.ters"

published by the ,U~So 'Coast- and:'Geodetic Survey] -

Octo 2 Oct. 8--Continued

•

M z eP 07:12:34.2 c u z iP 23:52:22 0 7 d

A

D

u

Z iP

Z eP

PEZ eR

07:12:33 0 5 c

07:12:34 0 0 c

07:29:07

C&GS card 82-61:

1.60 N•• 127.30 E.

23:41:32.20'

Halrnahera.

h about 102 ~m.

From 'Octo 18 a southerly direction o

No preliminary C&GS'list~ngt

Octe! 4

u

u

PEZ ePP 17:l5:54

PEZ iPPP 17:17:58

u

u

u

PEN eS

PEZ eS

PEZ eR

02:39:11

02:46:47

u

u

M

PEZ is 17:23:28

PEZ eR 17:35:32

Z Tmax 18:51:05

C&GS card 81-61:

13 0 2° Sa, 166.50 Eo

02g23:23C)5.

New Hebrides regiono

h about 66 kmo'

Oct <) 5

Pa Z iP 18:17:52 0 8 c

'~agnitude 6.8 (HVO).

C&GS card 84-61:

36~7° S~. 72 0 6° W.

16:52:0002 Q

Near coast of southern Chileo

h about 67 km o

~agnitude 6.5 (Pas)o

Oct. 21

No preliminary C&GS list~ngo

Octo 8

M

A

D

z

Z

z

iP

iP

iF

23:52:22.3 d

23:52~2308 d

23:52:23 0 4 d

21

M

A

D

u

z

z

z

Z

z

iP

iP

eP

eP

iF

11:50:57.9 d

11:50:57.4 d

11 : 50 ': 57 e 6 d

11:50~5701 d

11:50:57 0 6 d
Start of pressure waves caused

by Russian nuclear explosion.

First waves had average period

of 105 seconds.

C&GS card 96-61:

3.50 N•• 126.6° E.

14:52:28.2.

Molucca Passage.

h about 32 km.

C&GS card 91-61:

3.50 N., 126.40 E.

14:39:33.5.

Mo1ucca Passage.

h about 25 km.

Magnitude 6.5 (Pas) 6.25 . (Berk).

Ocs· 23

M Z iP 15:04:27.4 d

A Z iP 15:04:28.5 d

D Z iP 15:04:27.3 d

U Z iP 15:04:27.8 d

15:14:27

15:14:15

15:14:19

16:49:00

05:34:36.7 d

05:34:37.8 d

05:34:37.3 d

iP

iP

iP

z

PEZ eR

z

PEN eR

PEE eR

z

PEN

u

M

A

u

u

D

u

Oct. 23

Oct. 24

Oct. 21--Continued .. Oct .23--Continued

Ka Z eP 11:50:58.3 c

Na Z iP 11:50:54.0 c

Pa Z iP 11:50:59.8 c

Hi Z iP 11:50:59.9 d

Ha Z iP 11:51:02.7 C

C&GS card 84-61:

18.0° S't 178.5° W.

11:43:41.3.

Fiji Islands.

h about 618 km.

Oct. 21

M Z iP 17:43:01.8 c

A Z eP 17:43:02.1 d

D Z iP 17:43:00.6 c

Pa Z iP 17:43:02.8 d

Hi Z eP 17:43:04.6 c

C&GS card 85-61:

10 .8° S., 166.0° E.

17:34:36.8.

Santa Cruz Islands.

h about 192 km.

Oct. 23

M Z iP 14:51:33.0 d

A Z iP 14:51:33.4 d

D Z iP 1l~:51:32.6 d

U Z iP 14:51:32.9 d

U PEE eS 15:02:20

22
Table 6.--Distant earthquakes--Continued

Oct. 24--Continued " "Oct~'29

u z iP 05:34:37.1 c u PEN eL 09:27:29

From a northerly direction.

No preliminary C&GS list~ng.

Oct. 26

Hi -z

Ha Z

Ha Z

eL 09:27:33

aL 09:28:02

Tmax 09:56:43

M

A

D

z

z

z

eP

eP

eP

00:48:35.6 c

00:48:35.8 c

00:48:35.2 c

M

A

D

z

z

z

Tmax 09:57:13

Tmax 09:57:26

Tmax 09:57:26

u PEZ eP 00:48:35 c u z Tmax 09:57:25

u PEZ eSS 01:00:42 Pa Z Tmax 09:57:27

u

u

u

u

PEZ iR

PEE is

PEE eG

PEN eG

01:05:40

00:56:45

01:03:20

01:03:25

C&GS card 86-61:

49.0° N•• 128.7° W.

09:12:15.7.

Vancouver Island region.

h about 16 km.

··Oet.'29

Magnitude 6.5 (HVO).

C&GS card 89-61:

3.10 S., 147.4° Eo

00:38:20.3.

Bismarck Sea.

h abou~ 14 km e

Magnitude 6.5 (Pas and":aerk,).

Oct., 28

Pa Z

Pa Z

Pa Z

Pa Z

Pa Z

Tmax 10:47:22

Tmax 11:55:19

Tmax 12:01:53

Tmax 14:45:07

Tmax 17:01:29

C&GS card 88-61:

13.90 S., 166,00 E.

22:44:33.6.

New Hebrides Islands.

h about 89 km.

These T-phases have no preliminary C&GS listing. They ·are

assumed to have originated off

the Vancouver Island-Oregon

coasts.

u

u

PEZ eS

PEZ eR

23:00:53

23:07:16

Pa Z

Pa Z

Pa Z

Tmax 19:12:18

Tmax 20:13:43

Tmax 23:09:51

23
Table 6. - ..Distant': eat'ths.ua.kes--Continued p : • • • • • • • • : " • • I • : • • , • I

Oct. 29 .. Oct .30--Continued I

U PEN eL 15:03:49 eGGS card 86-61:

42.3° N•• 126.7° w.

Ha Z Tmax 15:31:41 02:16:32.7.

Off coast of Oregon.

Pa Z Tmax 15:32:21 h about· 36 km.

M Z Tmax 15:32:14 Oct. 30

U Z Tmax 15:32:16 0 PEN 17 :01:00

C&GS card 90-61: Start of pressure waves caused

48.7° N. , 128.3° W. by Russian nuclear explosion.

14:47:18.3. First waves had average

Vancouver Island . ~egJ.on. period' of 140 seconds •

h about 73 km.

. 'Nov. 4

Oct. 30

M Z eP 03:47:18.7 d

Pa Z Tmax 02:25:50

A Z eP 03:47:19.4· d

Ha Z Tmax 02:25:55

C&GS card 89-61:

No C&GS listing. 50.0° N•• J.55.5° E.

03:38:30.1.

Oct. 30 Kurile Islands.

h about 32 km.

U PEN eL 02:31:01

Nov. 5

Ha Z Tmax 02:57:29

M Z iP 10:45:46.9 c

Ka Z Tmax 02:57:50

A Z iP 10:45:47.9 c

Pa Z Tmax 02:57:41

D Z iP 10:45:47.5 c

M Z Tmax 02:58:03

U Z iP 10:45:47.6 c

A Z Tmax 02:57:59

Pa Z iP 10:45:53.0 c

D Z Tmax 02:58:01

Hi Z eP 10:45:47.6 c

U Z Tmax 02:58:00

Na Z iP 10:45:47.8 c

24
Table 6.--Distant'earthquakes--Continued

Nov. 5--Continued ' 'Nov~ lS--Continueq.

C&GS card 89-61: Ha Z eP 07:26:33.1 d

45 0 7° No. 147.9° E.

10:36:39.5. M,agnitude' 7.0 (HVO) •

Kuri1e Islands.

h about 142 krn. C&GS card 91-61.

43.1° N•• 145.1° E.

Novo 10 07:17:12.4.

Felt near coast of Hokkaido.

M Z iP 18:08:06.7 c Japan.

h about 43 km.

A Z iF 18:08:06,0 c

Nov. 19

D Z iP 18:08:06.1 c

M Z iF 23:33:54.9 d

U Z iF 18:08:06.1 c

A Z iP 23:33:55.2 d

Hi Z iP 18:08:09.5 c

D Z iP 23:33:54~4 d

Pa Z iF 18:08:08.3 c

U Z iP 23:33:55.0 d

Na Z iP 18:08:03.0 c

Hi Z iP 23:33:55.8 d

Ka Z iF 18:08:09.3 d

C&GS card 96-61:

Ha Z iP 18:08:11.7 c o.8° N•• 124.3° E.

23:21:55.5.

C&GS card 91-61: Northern Celebes.

17 0 5° S •• 178.8° W. h about 157 krn.

18:00:49.6.

Fiji Islands. ' .No'1 '20

h about 586 km.

U PEZ is 12:01:19

Novo 15

U PEZ iSS 12:04:51

M Z eP 07:26:41.9 c

U PEZ iR 12:09:05

A Z eP 07:26:43.0 d

M,agnitude 6.0 (HVO).

D Z eP 07:26:42.4 c

C&GS card 97-61:

U Z eP 07:26:42.4 d 21.80 S•• 169.9° E.

11:44:19.4.

Hi Z iP 07:26:41.5 c Loyalty Islands r,egion.

h about 33 km.

Pa Z eP 07:26:44.1 c

Ka Z iP 07:26:37.0 d

25
Table 6.--Distant·earth1uakes~-Contin~ed

.. Dee~ 5

:.-D~e~ l--Continued

C&GS card 100-61:

26.5° N., 124.9° E.

21:13:04.1.

East China Sea.

h about 206 km.

M Z eP 13:11:16.2 c

A Z iP 13:11:16.6 c

D Z eP 13:11:15.8 c

U Z eP 13:.11:17.3 c

Pa Z iP 13:11:19.9 c

Ha Z iP 13:11:19.4 c

U PEN iPs 13:23:56

U PEZ iR 13:42:56

C&GS card 102-61:

50.8° S., 139.80 E.

13:01:04.7.

Southwest of Tasmania.

h about 64 km.

M Z eP 16:48:31 c

Dec. 6

C&GS card 104-61:

0.6° St. 127.1° E.

17:10:33.3.

Ha1mahera region.

h about 25 km.

Magnitude 6.25 to 6.5 (Pas).

Nov. 21

M Z iP 11:19:15.4 'c

U Z iP 11:19:15.2 c

N Z iP 11:19:15.6 c

C&GS card 94-61:

0.90 N•• 122.5° E.

11:06:38.1.

Northern Celebes.

h about 85 km.

Nov. 27

M Z iP 17:~~:39.2 d

A Z iP 17:22:38.8 c

U Z eP 17:22:39.5 d

U PEN eG 17:42:51

U PEZ eR 17:46:29

Magnitude 6.0 (HVO).

Magnitude 6.3 (HVO).

C&GS card 99-61:

49.4° N•• 155.2°E.

16:39-:31.5.

Kurile Islands.

h about 22 krn.

Magnitude 6 to 6.25 (Pas).

6 • 25 (BeI'k).

Dec. 1

M Z eP 21:24:12.1 d

A Z eP 21:24:12.7 d

D Z eP 21:24:12.4 d

U PEE eS 21:34:24

U PEZ eG 21:46:08

u

u

PEZ

PEZ

is

iR

16:55:40

17:02:04

26
Table 6.~-Distartt·earthquakes--Continued

Dec. 9 Dec. 9--Continued

U' PEN eL 02:31:02 D Z eP 19:57:27.4 c

Ha Z Tmax 02:59':'45'.0 Ha Z iP 19:-57:32.3 d

Hi Z Tmax 03:00:58.4 Ka Z eP 19:57:29.3 d

U Z Tmax 03:01:20.6 Hi Z iP 19:57:29.5 d

M Z Tmax 03:01i23.2 Pa Z iP 19:57:29.1 c

Pa Z Tmax 03:01:27.2 Na Z iP 19:57:23.4 c

C&GS card 99-61:

56.30 N•• 153.9° W.

02 : 1,5 :22 eO.

Kodiak Island. Alaska region,

h about 31 km. I

Magnitude 5.5 to 5.75 (Bark). . 5.5 (Pal).

U PEZ iR 12:02:48

~agnitude 6.5 (HVO).

C&GS card 99-61:

43.7° S$. 75~2° Wo

11:18:08.9.

Near coast of southern Chile.

Magnitude 6.75 (P~~)~'6~5

. (Berk). 5.75 to 6,0 (Pal).

h about' 34 km.

PEZ eSS

PEZ ePS

13:38:12.8 c

13:37:26.4 d

13:38:15.4 c

13:37:20.1 d

13:38:05.8 c

13:38:06.5 c

13:37:21.0 d

13:38:05.8 c

13:37:20.1 d

13:37:20.8 d

13:37:18.6 c

13:38:06.6 c

13:37:19.7 d

13:38:09.2 c

13:37:19.0 c

13:37:22.5 c

ipP

eP

eP

epP

eP

eP

iP

ipP

eP

eP

eP

ipP

ipP

z

z

z

z

z

D

A

D Z

A

Ha Z ipP

U PEZ iP

U PEZ ipP

M

l<a Z

Hi Z

Hi Z

Na Z

Ka Z

Ha Z

M

Pa Z

C&GS card 99-61:

21.70 S., 179.9° E.

19:49:41.3.

Fiji Islands.

h about 620 krn.

Dec. 20

19:57:27.1 d

19:57:26.9 d

19:57:26&8 d

11:44~20

11:49:40

eP

eP

iP

Tmax 03:01:41.5

Tmax 03:01:33.5

z

z

Z

z

Z

A

M

u

u

A

U

D

Dec. 9

Dec e 9

27
u PEZ aL

Table 6. --Distant·' earthquakes--Continued

00:27:49

28
Table 6.--Distant·ea~t~suakes--Continued

Dec. 27--Continued

Magnitude 6.5 (HVO).

C&GS card 105-61:

41.2° 5., 175.7° E.

23:48:01.3.

North Island, New Zealand.'

h about 57 km.

Magnitude 6.75 (Pas). 6 to

6.25 (Pal).

Dec. 29

.. DeC .30--Continued

~agnitude 6.8 (HVO).

C&GS card 105-61:

52.3° N., 177.7° E.

00:39:24.1.

Rat Islands.

habout;' 52 km.

Magnitude 6.75 (Pas). 6.5 , (Berk), 7 (Pal),

C&GS card 105-61:

12.4° S• , 166.3° E.

23:55:57.6 ( D~~c. 28).

Santa Cruz Islands.

h about 100 km.

Dec. 30

M Z eP 00:46:48.7 d

A Z eP 00:46:50.0 c

N Z eP 00:46:51.2 c

U Z eP 00:46:50.8 d

Pa Z iP 00:46:52.3 c

Hi Z eP 00:46:49.8 d:

Na Z iP 00:46:52.5 c

Ha Z eP 00:46:36.8 c

U PEZ iP 00:46:50.2 d

U PEZ is 00:52:52

U PEZ iR 00:57:02

Ha Z Tmax 01:27:35.0

29

u PEE eR 00:16:15 M Z eP 11:46:59.5 d

A Z eP 11:47:00.4 d

D Z eP 11:46:59.9 c

N Z eP 11:46:59.6 c

Hi Z eP 11:46:57.4 d

Ha Z Tmax 12:21:53.6

Off Oregon coast.

No preliminary C&GS listing.

Dec. 30

M Z eP 11:48:19.5 c

A Z eP 11:48:21.4 d

D Z eP 11:48:22.2 c

N Z eP 11:48:21.2 c

Hi Z eP 11:48:17.4 d

From northeast source.

No preliminary C&GS listing.



33

---ORIGIN TIME (HST)-- -LAT N-- --LON W-- DEPTH N RMS ERH ERZ LOC PREF AZ MIN 1YEAR MON DA HRMN SEC DEG MIN DEG MIN KM RD SEC KM KM REMKS MAG GAP DS 1961 JAN 2 2030 15.49 21 12.60 155 19.10 11.18 10 .16 9.310.5 DIS - 4.1X 287109 1961 JAN 4 0008 57.74 19 26.47 155 21.74 15.89 5 .06 1.8 8.7 DML 143 7 1961 JAN 4 0903 42.19 19 10.33 155 42.67 6.48 6 .09 5.612.3 LSW - 271 18 1961 JAN 4 1132 46.08 19 24.01 155 24.87 6.96 4 .01 3.2 9.9 KAO - 216 8 1961 JAN 4 1137 52.14 19 25.56 155 40.36 7.00 4 .1413.810.5 MLO - 327 31 1961 JAN 4 1802 6.58 19 29.49 155 22.89 6.99 4 .06 8.110.3 KAO - 180 1 1961 JAN 4 1839 29.01 19 27.01 155 29.26 5.16 5 .03 3.812.2 KAO - 283 12 1961 JAN 7 0357 47.51 19 43.32 156 23.76 7.41 8 .1710.711.8 DIS F- 3.9X 319109 1961 JAN 7 1550 22.63 18 48.80 155 10.90 7.18 6 .08 8.611.1 LOI - 3.3X 348 62 1961 JAN 7 1705 34.68 19 46.46 155 24.45 17.57 9 .13 2.713.4 KEA - 2.7X 266 31 1961 JAN 8 0930 37.16 19 24.15 155 14.56 30.53 10 .21 2.7 1.7 DEP 2.5X 146 4 1961 JAN 9 0042 32.73 19 21.53 154 53.39 4.54 6 .32 7.425.4 SLE - 2.6X 289 16 1961 JAN 11 1419 40.13 19 20.11 155 19.20 24.94 6 .07 2.3 2.0 DEP 171 7 1961 JAN 12 1218 44.70 19 25.58 155 17.06 30.57 7 .04 2.7 1.5 DEP 2.6X 128 1 1961 JAN 14 1539 0.17 20 2.46 155 20.96 14.92 6 .08 7.111.4 KEA - 3.1X 318 45 1961 JAN 15 0044 42.20 19 52.98 155 37.21 12.94 8 .09 1.5 4.1 KEA F 4.2X 169 59 1961 JAN 16 0554 34.43 19 11.18 156 3.32 9.83 6 .1610.614.6 KON F- 3.4X 343 72 1961 JAN 16 1021 17.83 19 20.69 155 10.89 41.22 5 .18 9.111.0 DEP - 2.9X 286 9 1961 JAN 19 0314 4.12 19 16.62 155 12.89 7.57 7 .08 1.0 4.2 SF2 2.6X 190 17 1961 JAN 21 0139 36.88 19 13.40 155 39.62 9.93 8 .07 3.0 1.1 LSW F 4.8X 247 19 1961 JAN 21 1930 0.91 19 20.96 155 31.78 13.33 5 .2410.8 1.7 DML 2.8X 307 15 1961 JAN 22 0547 7.23 19 20.41 155 17.35 30.92 6 .05 3.2 1.9 DEP 192 4 1961 JAN 22 2145 10.49 19 59.73 155 27.84 3.44 8 .19 3.3 4.4 KEA 2.4X 314 50 1961 JAN 23 2227 46.92 19 30.67 155 10.56 43.76 6 .04 4.1 3.8 DEP 2.3X 191 16 1961 JAN 24 1330 42.00 19 58.16 155 28.98 5.75 10 .16 1.2 1.5 KEA F 3.3X 165 50 1961 JAN 24 1727 22.55 19 37.21 156 12.81 6.87 8 .08 8.410.7 KON - 323 88 1961 JAN 26 0941 49.81 19 23.70 155 18.29 0.03 5 .14 1.2 3.3 SSC # 2.8X 115 3 1961 JAN 26 2016 1.02 20 0.96 155 23.82 6.91 6 .03 2.3 1.5 KEA 2.3X 316 46 1961 JAN 27 0643 34.57 19 26.16 155 24.66 5.08 6 .07 1.211.1 KAO - 2.6X 212 7 1961 JAN 28 1642 50.17 19 22.02 155 15.86 29.94 6 .07 3.2 1.7 DEP 231 1 1961 JAN 29 0917 20.40 19 19.04 155 14.44 2.73 5 .02 1.5 2.6 SSF # 2.9X 214 13 1961 JAN 31 2007 26.00 19 27.76 155 22.21 12.72 5 .07 1.6 2.0 KAO 146 4 1961 FEB 1 1951 30.21 19 20.25 155 21.10 26.83 6 .09 2.3 2.5 DEP 154 4 1961 FEB 4 0445 16.84 19 24.87 155 28.50 6.45 4 .10 5.812.8 KAO - 271 13 1961 FEB 8 1717 28.34 19 21.95 155 14.40 31.92 5 .01 3.6 1.6 DEP 300 3 1961 FEB 9 0946 26.67 19 22.20 155 28.64 7.55 5 .04 1.2 4.6 KAO 282 10 1961 FEB 12 2034 39.26 19 25.25 155 35.23 12.46 6 .10 3.0 1.9 MLO F 2.5X 238 23 1961 FEB 13 0522 53.19 19 28.51 154 55.50 0.59 6 .10 1.6 .6 SLE F 2.6X 285 3 1961 FEB 13 1832 0.91 19 29.18 154 44.91 13.41 6 .03 7.1 9.5 LER F- 2.2X 310 44 1961 FEB 14 0911 39.98 19 31.99 154 53.08 6.99 5 .21 4.517.9 HIL - 2.7X 292 30 1961 FEB 15 0427 32.32 19 26.92 155 22.15 29.78 7 .17 3.1 1.7 DML 3.0X 131 6 1961 FEB 15 0524 37.67 19 10.34 155 43.71 7.02 6 .03 1.910.4 KON - 3.0X 276 19 1961 FEB 18 1026 13.34 19 24.70 155 26.66 0.22 8 .16 1.4 .7 KAO 2.8X 190 10 1961 FEB 19 1157 9.72 19 31.62 155 44.70 7.15 4 .04 2.712.8 KON - 336 38 1961 FEB 20 1734 20.37 19 18.48 155 38.53 7.00 5 .04 3.010.1 LSW - 3.4X 244 27 

---ORIGIN TIME (HST)-- -LAT N-- --LON W-- DEPTH N RMS YEAR MON DA HRMN SEC DEG MIN DEG MIN KM RD SEC 1961 FEB 24 0640 7.88 20 3.65 156 8.52 6.73 5 .191961 FEB 26 0649 54.49 19 26.33 155 14.62 3.56 6 .08 1961 MAR 3 0431 26.79 19 55.11 155 44.52 8.33 8 .07 1961 MAR 4 0457 45.14 19 24.75 155 13.72 0.01 4 .19 1961 MAR 5 1109 40.18 19 25.75 155 15.36 6.75 4 .01 1961 MAR 8 1555 57.34 19 31.71 156 4.80 6.88 5 .141961 MAR 9 0116 55.71 19 22.91 155 14.37 28.86 4 .01 1961 MAR 9 1855 51.08 19 25.27 155 22.88 26.60 5 .06 1961 MAR 10 1158 3.49 19 20.40 155 0.16 52.74 7 .16 1961 MAR 11 2330 28.75 19 34.48 154 40.17 4.25 5 .20 1961 MAR 12 2208 56.40 19 25.69 155 25.52 7.34 4 .01 1961 MAR 13 0336 12.11 19 30.32 155 17.40 45.88 6 .09 1961 MAR 13 1706 0.90 19 21.54 155 15.53 34.15 7 .08 1961 MAR 13 2123 46.75 19 24.02 155 17.01 0.00 5 .09 1961 MAR 14 0502 9.34 19 13.94 155 11.99 20.47 5 .07 1961 MAR 15 0632 32.90 19 24.27 155 26.64 6.81 4 .07 1961 MAR 20 1258 27.83 19 22.54 155 34.63 6.53 6 .12 1961 MAR 20 2329 56.35 19 15.60 155 17.84 32.53 4 .00 1961 MAR 21 0904 25.45 19 27.43 155 14.66 14.18 4 .00 1961 MAR 21 0937 40.14 19 55.59 155 33.35 8.51 5 .04 1961 MAR 22 2141 54.96 19 23.29 155 31.11 7.19 7 .04 1961 MAR 23 0223 0.27 19 24.85 155 15.31 31.02 6 .05 1961 MAR 27 1324 30.67 19 25.25 155 24.31 7.03 4 .18 1961 MAR 29 0321 36.32 19 48.06 155 31.17 6.81 7 .09 1961 MAR 29 1007 9.56 19 23.35 155 26.43 7.66 6 .09 1961 MAR 29 1841 14.41 19 35.57 155 16.91 22.73 9 .10 1961 MAR 29 2159 45.25 19 54.97 155 41.68 14.22 10 .10 1961 MAR 31 0119 25.06 19 25.89 155 13.70 33.27 8 .11 1961 MAR 31 0159 7.06 19 49.03 155 29.88 9.19 8 .16 1961 APR 1 1006 36.39 19 24.37 155 17.89 1.03 5 .03 1961 APR 2 0604 16.38 19 59.20 155 24.26 8.90 9 .09 1961 APR 3 0035 46.37 19 26.42 155 42.94 2.22 4 .15 1961 APR 6 0505 42.37 19 45.96 155 42.19 10.52 7 .09 1961 APR 6 1428 51.22 19 19.26 155 25.78 5.37 9 .08 1961 APR 7 1735 39.06 19 24.05 155 11.68 32.58 6 .09 1961 APR 9 0813 53.56 19 9.81 155 35.61 7.02 5 .03 1961 APR 9 0916 13.48 19 25.42 155 29.30 8.94 8 .07 1961 APR 9 1810 23.37 19 23.74 155 16.12 31.53 9 .15 1961 APR 12 0101 44.68 19 22.91 155 16.08 27.27 8 .07 1961 APR 12 0404 6.90 19 23.01 155 23.46 10.10 4 .07 1961 APR 12 1352 30.96 18 54.56 155 14.96 9.44 8 .06 1961 APR 15 2211 35.52 19 16.68 155 11.84 1.31 9 .06 1961 APR 16 0026 53.69 19 21.11 155 15.19 35.21 7 .07 1961 APR 16 1531 13.28 19 18.40 155 11.91 0.02 10 .17 1961 APR 16 1631 18.33 19 13.90 155 16.76 14.38 8 .19 
34

---ORIGIN TIME (HST)-- -LAT N-- --LON W-- DEPTH N RMS ERH ERZ LOC PREF AZ MIN 3YEAR MON DA HRMN SEC DEG MIN DEG MIN KM RD SEC KM KM REMKS MAG GAP DS 1961 APR 16 2053 30.40 19 27.47 155 2.53 21.90 5 .04 5.410.2 DEP - 2.0X 258 25 1961 APR 17 0641 12.09 19 22.67 155 17.94 19.06 4 .02 3.6 8.9 DEP - 148 4 1961 APR 17 0642 25.09 19 25.95 155 10.88 32.43 9 .18 4.6 1.9 DEP 2.6X 210 11 1961 APR 18 2304 45.03 19 54.23 155 17.69 11.24 5 .01 2.5 1.8 KEA 2.5X 300 30 1961 APR 20 1654 34.29 19 22.53 155 25.32 11.57 7 .03 1.6 .8 KAO 2.2X 234 6 1961 APR 21 1131 4.37 19 19.26 155 25.24 7.41 7 .05 1.1 1.4 KAO 3.7X 157 4 1961 APR 22 1048 57.94 19 25.84 155 16.72 17.83 10 .13 1.2 1.0 DEP 2.6X 89 2 1961 APR 22 1730 46.33 19 32.35 155 15.33 24.95 5 .07 2.410.3 DEP - 149 13 1961 APR 23 0930 12.10 19 27.53 155 27.14 1.47 8 .07 1.0 .7 KAO F 3.0X 214 8 1961 APR 23 1041 7.14 19 9.69 155 35.97 0.00 7 .28 6.3 1.3 LSW # 2.6X 218 11 1961 APR 25 1141 56.46 19 13.84 155 33.16 3.53 4 .07 2.313.6 LSW - 199 19 1961 APR 25 1346 29.68 19 26.43 155 22.28 0.58 5 .02 1.0 .7 KAO 2.4X 156 6 1961 APR 26 2244 48.83 19 23.74 155 29.59 8.65 8 .13 1.5 1.5 KAO 2.5X 284 13 1961 APR 27 0631 32.32 19 23.59 155 24.04 7.31 10 .10 .8 1.6 KAO 3.3X 157 6 1961 MAY 3 0025 46.38 19 25.21 155 25.06 8.37 4 .05 3.0 9.6 KAO - 218 9 1961 MAY 5 1806 13.14 19 42.37 155 20.16 21.79 8 .17 2.2 3.6 KEA 2.8X 252 24 1961 MAY 6 1057 39.69 19 23.74 155 18.71 16.81 5 .03 1.3 1.8 DEP 115 4 1961 MAY 7 0823 50.31 19 21.56 155 13.68 38.49 6 .05 3.7 2.9 DEP 2.8X 210 4 1961 MAY 9 1846 15.74 19 27.57 155 46.72 6.86 5 .19 9.818.4 KON - 289 41 1961 MAY 10 2340 15.16 19 25.35 155 16.57 30.81 8 .18 2.7 1.6 DEP 2.7X 91 2 1961 MAY 10 2343 21.49 19 22.19 155 15.45 33.05 6 .21 3.9 2.1 DEP 2.6X 160 1 1961 MAY 13 1721 47.96 19 34.03 155 15.04 28.34 7 .10 3.0 1.8 DEP 1.9X 163 16 1961 MAY 14 1301 30.05 19 22.91 155 17.56 32.82 8 .21 3.2 1.8 DEP 2.7X 114 3 1961 MAY 14 1355 40.56 19 23.94 155 25.87 5.51 6 .08 1.0 3.7 KAO 3.0X 178 8 1961 MAY 14 1829 11.78 19 22.02 155 5.10 3.90 4 .10 3.515.1 SSF - 220 19 1961 MAY 16 1627 31.65 19 27.53 155 19.25 31.27 8 .09 2.8 1.5 DML 2.9X 192 5 1961 MAY 16 1706 55.27 19 26.91 155 16.43 30.87 8 .08 2.4 1.4 DEP 2.2X 167 3 1961 MAY 16 1810 58.68 19 26.44 155 17.31 40.03 7 .08 2.5 4.0 DEP 3.1X 171 2 1961 MAY 16 2140 35.63 19 23.73 155 13.91 30.57 9 .09 1.8 2.3 DEP 3.0X 166 4 1961 MAY 17 0433 39.36 19 29.11 155 21.32 30.52 8 .11 2.3 1.4 DML 2.6X 116 4 1961 MAY 19 0031 51.00 19 5.05 155 16.78 16.19 7 .10 2.213.7 LOI - 4.1X 229 30 1961 MAY 20 0247 23.20 19 23.60 155 28.01 7.21 7 .12 1.4 3.8 KAO 2.5X 268 10 1961 MAY 20 0355 26.53 19 24.72 155 15.52 24.66 6 .06 1.3 3.0 DEP 115 4 1961 MAY 22 2221 43.34 19 6.59 156 12.47 12.29 7 .14 9.413.0 KON - 3.3X 325 66 1961 MAY 22 2232 18.63 19 25.01 155 23.37 13.96 9 .11 1.3 .5 DML 2.8X 152 9 1961 MAY 26 0512 54.40 19 27.15 155 24.74 11.88 9 .07 1.2 .7 KAO 3.0X 183 6 1961 MAY 26 1941 19.91 20 5.54 156 59.03 0.09 8 .4218.6 3.3 DIS # 3.2X 278107 1961 MAY 26 2212 45.42 19 27.11 155 27.03 6.77 9 .09 1.0 2.1 KAO F 4.0X 132 8 1961 MAY 26 2255 12.93 19 26.95 155 27.89 7.58 6 .05 1.5 2.3 KAO 2.2X 265 10 1961 MAY 28 1348 31.90 19 18.69 155 13.84 11.42 6 .06 1.8 1.3 SF2 2.2X 225 8 1961 MAY 30 0316 1.08 19 24.91 155 15.52 1.01 6 .13 1.0 .8 SNC F 3.0X 245 3 1961 JUN 1 0019 25.43 19 24.53 155 12.87 28.97 9 .09 1.7 1.0 DEP 2.7X 155 7 1961 JUN 2 1343 54.82 19 14.19 155 16.65 69.42 6 .11 4.6 5.6 DEP 2.5X 190 15 1961 JUN 4 1310 55.86 19 18.97 155 21.85 2.13 9 .19 1.0 1.3 SWR 2.4X 155 3 1961 JUN 7 0848 34.18 19 30.58 155 20.88 51.58 4 .08 5.410.5 DML - 257 4 

---ORIGIN TIME (HST)-- -LAT N-- --LON W-- DEPTH N RMS YEAR MON DA HRMN SEC DEG MIN DEG MIN KM RD SEC 1961 JUN 7 1434 6.86 19 21.39 155 14.78 29.58 7 .01961 JUN 8 1600 21.59 19 20.57 155 26.08 10.68 9 .13 1961 JUN 10 2252 24.23 19 22.12 155 16.76 29.55 7 .01961 JUN 10 2313 59.53 19 19.32 155 17.29 31.15 8 .01961 JUN 10 2327 26.00 19 27.91 155 13.29 16.22 6 .01961 JUN 11 1214 1.40 19 18.36 155 21.94 2.56 7 .01961 JUN 11 1748 19.64 19 27.92 155 29.14 7.12 10 .13 1961 JUN 12 0529 58.95 19 19.55 155 22.42 3.42 7 .01961 JUN 14 0114 37.08 19 18.48 155 22.16 3.17 8 .01961 JUN 14 1050 45.24 19 22.61 155 22.82 6.96 4 .01961 JUN 17 0628 29.61 19 18.88 155 20.64 4.80 6 .01961 JUN 17 1055 6.42 19 25.32 155 17.45 4.09 7 .11961 JUN 17 1102 58.50 19 17.18 155 23.44 2.03 7 .11961 JUN 17 1652 34.65 19 24.75 155 15.13 24.54 7 .04 1961 JUN 17 1741 44.29 19 20.97 155 16.96 23.68 6 .11961 JUN 18 0715 52.65 19 25.87 155 16.49 29.93 9 .14 1961 JUN 18 0717 13.26 19 30.46 155 13.18 8.29 6 .11961 JUN 18 0726 1.36 19 28.01 155 19.08 30.84 10 .13 1961 JUN 18 0729 9.19 19 24.18 155 12.46 37.63 8 .11961 JUN 18 1150 3.68 19 23.68 155 17.03 18.28 5 .01961 JUN 18 2043 20.26 19 21.23 155 18.28 38.56 8 .01961 JUN 19 0453 36.20 19 21.02 155 20.14 0.17 7 .01961 JUN 19 1701 31.65 19 18.45 155 22.28 0.03 9 .31961 JUN 20 0020 17.63 19 19.06 155 23.20 3.14 6 .12 1961 JUN 20 2207 47.90 19 20.82 155 0.24 6.93 4 .04 1961 JUN 20 2330 6.92 19 17.47 155 19.30 6.81 6 .11961 JUN 21 1320 36.45 19 10.91 155 32.85 2.05 9 .11961 JUN 21 2126 31.44 19 18.28 155 23.43 3.85 9 .14 1961 JUN 22 0435 0.72 19 17.39 155 22.74 1.07 7 .11961 JUN 22 0443 54.16 19 18.52 155 23.24 2.93 6 .14 1961 JUN 23 1416 20.55 19 23.44 155 18.35 0.55 6 .11961 JUN 23 1706 3.46 19 13.66 155 19.54 4.43 5 .01961 JUN 23 1706 58.33 19 14.95 155 19.16 9.96 8 .13 1961 JUN 24 0239 32.84 19 17.88 155 24.41 2.65 7 .01961 JUN 25 0446 38.08 19 24.89 155 16.87 32.44 8 .11961 JUN 25 0726 5.89 19 20.91 155 21.58 0.03 5 .01961 JUN 25 1944 57.39 19 16.78 155 24.12 4.60 7 .11961 JUN 26 0837 5.13 19 19.80 154 59.40 41.10 9 .11961 JUN 27 0111 1.35 19 22.41 155 18.90 28.22 8 .01961 JUN 27 1859 54.60 19 19.38 155 23.52 3.94 7 .13 1961 JUN 28 0028 19.77 19 21.51 155 16.65 29.58 9 .12 1961 JUN 28 0224 22.22 19 28.83 155 20.25 31.01 9 .11961 JUN 28 0607 32.22 19 19.59 155 17.91 34.85 8 .13 1961 JUN 29 0247 59.94 19 23.07 155 15.14 30.04 9 .01961 JUN 29 0409 29.77 19 20.84 155 17.58 32.02 9 .12 
35

---ORIGIN TIME (HST)-- -LAT N-- --LON W-- DEPTH N RMS ERH ERZ LOC PREF AZ MIN 5YEAR MON DA HRMN SEC DEG MIN DEG MIN KM RD SEC KM KM REMKS MAG GAP DS 1961 JUN 29 0415 16.78 19 22.09 155 15.90 30.51 9 .10 1.9 2.3 DEP 3.4X 188 1 1961 JUN 29 0452 0.34 19 21.05 155 16.96 34.89 7 .08 1.9 2.5 DEP 2.8X 161 3 1961 JUN 29 0546 15.70 19 20.73 155 13.49 32.34 6 .06 2.5 1.9 DEP 2.7X 212 5 1961 JUN 29 0642 16.22 19 23.55 155 15.98 29.43 9 .07 1.6 1.1 DEP 2.6X 105 2 1961 JUN 29 0801 36.64 19 22.07 155 15.70 27.05 7 .02 2.5 1.1 DEP # 2.9X 202 1 1961 JUN 29 0935 45.67 19 20.86 155 16.83 28.36 5 .00 1.6 2.5 DEP 2.2X 161 3 1961 JUN 29 1123 21.96 19 25.31 155 16.47 32.31 6 .07 1.9 2.4 DEP 2.5X 158 5 1961 JUN 29 1534 23.03 19 21.59 155 18.18 36.66 7 .10 2.6 3.5 DEP 154 4 1961 JUN 29 2342 21.58 19 23.55 155 15.75 28.83 9 .12 2.9 1.7 DEP 2.4X 162 2 1961 JUN 30 0223 12.41 19 23.36 155 17.79 33.27 10 .16 2.3 1.7 DEP 2.8X 103 3 1961 JUN 30 0223 55.63 19 24.65 155 17.13 28.60 9 .09 1.7 2.2 DEP 3.0X 81 1 1961 JUN 30 0225 56.85 19 23.25 155 16.56 33.96 9 .12 1.7 2.4 DEP 3.1X 80 2 1961 JUN 30 0245 17.51 19 22.82 155 15.90 29.60 9 .05 1.6 2.0 DEP 2.7X 112 1 1961 JUN 30 0321 12.91 19 21.83 155 16.04 31.28 10 .06 1.8 1.1 DEP 2.7X 160 1 1961 JUL 1 0219 29.50 19 27.74 155 18.47 29.88 8 .09 2.0 1.6 DEP 3.3X 186 5 1961 JUL 2 0036 6.26 19 24.50 155 15.41 27.62 11 .11 1.3 2.0 DEP F 3.4X 76 3 1961 JUL 2 1200 8.28 19 16.49 155 10.77 1.37 6 .0912.3 6.5 SSF - 3.2X 309 14 1961 JUL 2 1326 52.07 19 21.36 155 16.94 29.96 7 .12 3.5 2.2 DEP 182 3 1961 JUL 3 0441 0.83 19 17.60 155 22.69 5.41 9 .11 1.0 2.3 SWR 2.7X 158 5 1961 JUL 3 1048 47.94 19 19.03 155 13.46 2.54 9 .10 1.2 1.3 SSF 2.7X 223 8 1961 JUL 5 0633 58.64 19 10.52 155 28.86 31.40 9 .11 2.5 2.3 DLS 2.9X 165 17 1961 JUL 5 1458 7.72 19 23.91 155 16.09 4.24 6 .08 .6 1.2 SEC 2.4X 83 3 1961 JUL 5 2152 12.07 19 20.87 155 6.01 43.03 8 .13 3.0 2.9 DEP 238 7 1961 JUL 5 2258 6.20 19 18.39 155 16.20 38.35 5 .00 3.4 6.4 DEP 228 7 1961 JUL 7 0232 33.26 19 25.36 155 17.45 1.82 8 .06 .6 .2 SNC 2.9X 83 0 1961 JUL 7 0251 16.52 19 24.06 155 17.26 1.65 6 .12 1.0 .7 SSC F 3.4X 95 2 1961 JUL 9 1118 54.70 19 18.01 155 15.56 14.56 6 .14 2.9 2.5 DEP 237 8 1961 JUL 9 1229 12.94 19 20.56 155 26.18 36.76 8 .19 4.2 2.4 DML 168 5 1961 JUL 10 0144 9.60 19 26.45 155 6.30 56.07 6 .09 8.5 5.0 DEP 273 18 1961 JUL 10 1943 14.05 19 25.34 155 16.74 1.49 4 .01 1.7 .8 SNC 3.1X 218 2 1961 JUL 11 1156 26.17 19 18.96 155 22.30 1.68 5 .12 1.2 1.4 SWR 2.8X 159 3 1961 JUL 12 0758 17.78 19 16.59 155 3.69 5.48 5 .06 1.7 2.1 SF5 3.2X 221 24 1961 JUL 12 1737 13.90 19 25.35 155 26.16 14.40 5 .10 1.5 1.7 DML F 2.8X 189 10 1961 JUL 13 0910 1.33 19 21.79 155 16.49 29.58 7 .05 1.2 1.0 DEP 3.0X 158 2 1961 JUL 13 1430 30.54 19 18.43 155 26.16 15.00 4 .03 2.031.6 DLS F- 3.8X 306 6 1961 JUL 14 0336 54.34 19 23.88 155 19.67 6.98 4 .00 1.912.3 KAO - 142 7 1961 JUL 14 0414 49.09 19 20.66 155 18.73 43.39 7 .10 1.4 3.0 DEP # 2.1X 157 6 1961 JUL 14 0415 38.14 19 20.64 155 14.82 28.74 8 .34 2.9 2.5 DEP 2.7X 168 4 1961 JUL 14 0418 43.23 19 17.49 155 11.86 49.10 6 .06 3.2 3.2 DEP 226 11 1961 JUL 14 0423 43.54 19 20.77 155 17.33 42.06 5 .13 4.8 4.1 DEP 2.1X 187 4 1961 JUL 19 1749 0.52 20 10.14 156 14.59 13.00 5 .0510.213.1 KOH - 2.9X 225 66 1961 JUL 22 1940 57.24 19 32.40 155 40.42 6.98 4 .1013.710.7 MLO - 333 30 1961 JUL 23 0524 15.49 19 22.58 155 16.82 26.13 8 .04 1.0 1.5 DEP F 4.1X 122 2 1961 JUL 23 0528 23.36 19 23.76 155 17.84 23.42 7 .13 1.4 2.3 DEP F 4.0X 147 12 1961 JUL 23 0536 50.43 19 21.10 155 17.10 31.77 5 .05 1.9 3.0 DEP F 3.2X 160 3 

---ORIGIN TIME (HST)-- -LAT N-- --LON W-- DEPTH N RMYEAR MON DA HRMN SEC DEG MIN DEG MIN KM RD SE1961 JUL 23 0605 25.81 19 23.13 155 15.12 36.46 9 .01961 JUL 23 0650 54.96 19 22.23 155 14.01 31.24 7 .11961 JUL 23 0757 5.65 19 20.29 155 16.71 26.37 6 .01961 JUL 23 0758 9.27 19 20.91 155 12.78 28.75 6 .01961 JUL 23 0816 10.03 19 21.64 155 13.74 30.43 7 .11961 JUL 23 0820 18.74 19 23.64 155 15.89 23.07 5 .01961 JUL 23 0930 30.65 19 23.31 155 15.99 29.43 10 .11961 JUL 23 0940 3.37 19 20.92 155 15.13 32.37 6 .01961 JUL 23 0958 10.96 19 23.36 155 14.54 37.00 7 .01961 JUL 23 1042 47.14 19 22.64 155 17.51 29.14 10 .01961 JUL 23 1048 11.39 19 24.46 155 14.55 27.73 10 .11961 JUL 23 1050 3.76 19 22.85 155 17.64 30.79 10 .01961 JUL 23 1419 11.01 19 20.73 155 16.58 28.67 6 .01961 JUL 23 1550 31.85 19 24.86 155 16.51 28.06 9 .11961 JUL 23 2029 12.58 19 22.64 155 17.37 34.78 9 .11961 JUL 23 2136 12.59 19 22.46 155 16.27 32.40 7 .11961 JUL 23 2329 56.65 19 10.15 155 15.16 5.28 6 .01961 JUL 24 0114 48.45 19 22.53 155 15.88 28.33 9 .21961 JUL 24 0238 54.01 19 22.32 155 17.02 28.64 8 .01961 JUL 24 0259 57.31 19 22.66 155 13.22 31.33 9 .11961 JUL 24 0322 42.23 19 23.82 155 16.58 30.42 10 .11961 JUL 24 0512 28.28 19 9.46 155 38.92 1.31 6 .01961 JUL 24 0750 18.41 19 21.52 155 15.58 27.18 7 .01961 JUL 24 1659 46.17 19 25.01 155 16.82 30.70 11 .21961 JUL 24 1903 9.37 19 19.40 155 17.10 31.11 9 .11961 JUL 25 1659 35.81 19 22.51 155 17.68 29.83 8 .01961 JUL 25 2010 8.73 19 18.41 155 15.77 33.14 8 .01961 JUL 25 2306 12.24 19 23.92 155 41.16 7.00 4 .31961 JUL 26 2318 22.82 19 20.75 155 14.08 35.24 7 .01961 JUL 27 0539 34.45 19 20.98 155 16.02 27.82 6 .11961 JUL 27 2121 3.60 19 25.71 155 17.14 31.21 9 .11961 JUL 27 2319 21.24 20 3.24 155 19.02 3.00 8 .11961 JUL 28 1251 9.47 19 19.36 155 14.37 41.36 6 .11961 JUL 29 0357 59.32 19 29.02 155 17.21 12.25 7 .01961 JUL 29 1621 28.79 19 24.46 155 18.06 0.55 7 .11961 AUG 2 0344 0.49 19 12.45 155 32.99 2.28 8 .01961 AUG 2 1608 25.25 19 21.70 155 42.75 33.63 5 .01961 AUG 3 1336 29.81 19 22.96 155 17.98 0.03 6 .01961 AUG 3 1336 37.34 19 23.88 155 14.52 8.34 6 .11961 AUG 4 0001 26.61 19 27.53 155 37.07 4.92 5 .01961 AUG 7 0141 32.42 19 56.42 155 47.68 18.05 8 .01961 AUG 9 1933 29.62 19 21.44 155 17.32 32.06 8 .11961 AUG 9 1950 13.71 19 25.57 155 16.48 31.82 9 .01961 AUG 9 2110 51.79 19 22.03 155 13.37 42.61 7 .01961 AUG 12 0217 38.54 19 48.84 155 37.12 11.40 8 .0
36

---ORIGIN TIME (HST)-- -LAT N-- --LON W-- DEPTH N RMS ERH ERZ LOC PREF AZ MIN 7YEAR MON DA HRMN SEC DEG MIN DEG MIN KM RD SEC KM KM REMKS MAG GAP DS 1961 AUG 12 1942 19.09 19 23.15 155 18.47 31.04 10 .13 1.3 .8 DEP F 3.1X 113 4 1961 AUG 14 1617 10.99 19 28.34 155 49.36 9.88 4 .0713.0 3.6 KON - 338 46 1961 AUG 15 1240 47.83 19 21.96 155 30.00 0.01 7 .09 6.7 2.4 KAO F# 2.9X 294 12 1961 AUG 15 1757 30.37 19 23.06 155 17.86 0.08 7 .15 .4 .3 SSC F 2.6X 133 4 1961 AUG 15 1814 30.12 19 28.65 155 41.49 7.01 4 .1514.911.8 MLO - 330 32 1961 AUG 16 1157 7.04 19 21.82 155 17.16 31.92 7 .10 2.3 2.9 DEP 157 2 1961 AUG 16 1733 15.28 20 6.97 155 31.10 10.59 6 .15 3.9 2.8 KEA 184 19 1961 AUG 17 1446 58.15 19 17.38 155 12.59 25.60 9 .18 1.6 1.8 DEP 2.7X 188 11 1961 AUG 20 1040 7.50 19 16.39 155 35.57 3.58 4 .0713.113.9 LSW - 2.7X 329 23 1961 AUG 20 1943 19.76 19 23.12 155 13.11 28.37 9 .11 1.2 1.0 DEP 2.7X 188 8 1961 AUG 20 2344 45.62 19 22.00 155 14.76 31.28 10 .12 1.3 1.5 DEP 3.1X 162 7 1961 AUG 21 0648 19.95 19 25.00 155 17.08 3.80 4 .0914.4 .7 SNC - 3.1X 192 0 1961 AUG 21 0655 11.36 19 24.54 155 14.64 0.23 6 .21 1.3 4.9 SNC F# 2.7X 152 5 1961 AUG 21 0943 31.05 19 23.44 155 17.87 0.46 7 .06 .4 .3 SSC 2.4X 119 3 1961 AUG 22 0756 53.41 19 23.20 155 17.26 0.02 6 .17 .7 1.1 SSC F# 2.4X 122 3 1961 AUG 22 1239 57.73 19 24.69 155 17.32 1.46 6 .08 1.8 .8 SNC F 2.9X 93 1 1961 AUG 22 1503 15.20 19 23.15 155 16.44 3.68 6 .05 2.5 1.7 SEC F 3.1X 162 2 1961 AUG 22 1609 50.78 19 23.07 155 18.07 0.91 5 .08 1.4 3.4 SSC F 2.7X 132 4 1961 AUG 25 0631 55.69 19 23.58 155 17.06 2.33 9 .15 .6 .6 SSC 2.4X 86 2 1961 AUG 25 0845 34.93 19 49.79 155 5.28 43.60 9 .15 2.6 1.3 KEA F 4.5X 228 12 1961 AUG 25 1231 3.63 19 53.18 155 32.50 0.26 7 .06 1.7 .8 KEA 2.5X 153 20 1961 AUG 26 2209 46.86 19 22.51 155 4.50 43.08 10 .11 2.1 2.0 DEP 2.6X 193 19 1961 AUG 28 0305 28.12 19 26.11 156 17.68 1.30 9 .11 3.6 1.8 KON 2.7X 243 85 1961 AUG 28 2211 24.98 19 28.38 155 14.76 20.11 7 .08 .9 1.5 DEP 2.4X 127 7 1961 AUG 31 0107 28.34 18 58.22 155 46.40 35.66 7 .18 3.8 8.9 DIS 309 57 1961 SEP 1 0954 52.92 19 22.60 155 16.11 24.88 4 .01 2.1 4.2 DEP 117 1 1961 SEP 1 1734 48.69 19 27.05 155 13.53 18.64 6 .11 1.5 2.1 DEP 126 8 1961 SEP 2 0605 51.50 19 23.65 155 17.08 3.09 5 .04 1.9 1.5 SSC 3.1X 153 3 1961 SEP 3 0424 29.82 19 49.53 155 20.67 31.23 10 .13 1.3 3.5 KEA F 3.6X 155 29 1961 SEP 3 1914 14.20 19 37.43 155 40.89 3.54 9 .18 1.6 3.5 KEA 2.5X 200 34 1961 SEP 5 2257 45.58 19 22.68 155 16.11 26.08 7 .06 1.8 2.0 DEP 88 1 1961 SEP 8 0335 17.48 19 23.12 155 4.67 6.70 7 .07 1.8 7.8 SF5 2.3X 213 18 1961 SEP 8 2234 11.58 19 23.53 155 15.98 2.49 8 .17 .7 .6 SEC F 2.6X 105 2 1961 SEP 9 0825 54.26 19 27.63 155 28.41 28.06 6 .14 3.2 3.6 DML 3.3X 279 10 1961 SEP 9 1331 20.99 19 24.34 155 27.44 6.10 10 .14 2.5 5.8 KAO 2.9X 142 11 1961 SEP 9 2004 45.91 19 25.76 155 15.72 0.43 8 .06 .5 .6 SNC F 2.3X 154 3 1961 SEP 12 1347 12.74 19 23.00 155 17.73 1.29 7 .04 .5 1.0 SSC F 3.1X 134 3 1961 SEP 13 1910 59.16 19 18.07 156 16.33 6.78 7 .1911.515.8 KON F- 311 93 1961 SEP 13 2200 2.30 19 12.25 155 33.04 2.76 7 .02 1.1 2.4 LSW 2.6X 159 16 1961 SEP 15 1506 14.42 19 26.40 155 8.24 39.49 8 .05 1.8 1.6 DEP 2.7X 169 15 1961 SEP 15 2024 29.96 20 1.34 156 19.97 5.73 10 .11 2.3 5.6 KOH F 3.7X 222 69 1961 SEP 16 0638 58.15 19 22.64 155 24.25 0.02 11 .19 .9 .5 KAO # 3.1X 130 5 1961 SEP 17 0249 22.76 19 32.72 155 48.60 20.98 6 .12 5.714.1 KON - 339 45 1961 SEP 17 2214 57.87 19 23.07 155 16.56 30.85 7 .05 2.3 2.0 DEP 2.8X 109 2 1961 SEP 17 2320 21.53 19 22.74 155 16.04 28.90 7 .08 2.3 2.0 DEP 93 1 

---ORIGIN TIME (HST)-- -LAT N-- --LON W-- DEPTH N RMYEAR MON DA HRMN SEC DEG MIN DEG MIN KM RD SE1961 SEP 18 0020 38.19 19 16.29 155 27.08 27.93 7 .01961 SEP 21 1317 3.31 19 21.33 155 12.24 0.71 6 .01961 SEP 21 1353 55.48 19 18.68 155 13.07 4.90 5 .01961 SEP 21 1419 38.04 19 17.63 155 12.62 3.94 4 .11961 SEP 21 1433 8.03 19 17.90 155 13.37 1.86 4 .01961 SEP 21 1441 56.99 19 30.50 155 26.76 7.14 4 .11961 SEP 21 1454 21.61 19 18.76 155 13.70 4.86 5 .01961 SEP 22 1701 33.91 19 23.32 155 9.42 7.75 6 .01961 SEP 23 1919 53.57 19 27.29 155 5.80 4.64 7 .11961 SEP 24 0108 18.24 19 20.86 154 58.93 12.06 8 .01961 SEP 24 0349 51.49 19 20.55 155 8.31 17.51 4 .21961 SEP 24 1841 0.95 19 20.93 154 54.28 13.65 8 .11961 SEP 24 1909 39.88 19 23.09 155 15.39 29.97 12 .11961 SEP 24 1925 7.01 19 12.87 154 58.64 38.76 4 .01961 SEP 24 1928 53.40 19 17.64 154 59.75 7.69 8 .11961 SEP 24 1935 39.81 19 21.06 155 0.52 1.95 6 .01961 SEP 24 1938 34.05 19 13.07 154 45.53 17.39 7 .01961 SEP 24 1944 59.03 19 18.68 154 59.51 16.97 6 .21961 SEP 24 1948 42.10 19 8.34 154 56.92 19.45 6 .01961 SEP 24 1950 14.57 19 23.57 155 3.76 11.24 7 .01961 SEP 24 2001 24.14 19 14.44 154 54.34 7.00 5 .01961 SEP 24 2029 22.26 19 18.45 155 1.46 9.17 7 .01961 SEP 24 2038 27.39 19 18.21 154 57.24 9.89 8 .11961 SEP 24 2050 33.76 19 25.24 154 54.62 13.10 7 .11961 SEP 24 2114 6.86 19 23.77 155 6.85 12.42 6 .01961 SEP 24 2116 38.23 19 18.86 154 56.49 14.79 8 .01961 SEP 24 2136 37.75 19 14.92 154 55.94 7.03 5 .01961 SEP 24 2139 25.88 19 16.13 154 59.48 1.69 8 .11961 SEP 24 2253 13.48 19 16.41 154 57.01 5.26 7 .11961 SEP 25 0119 13.70 19 21.27 155 16.77 32.26 8 .11961 SEP 25 1302 30.73 19 19.13 154 58.51 12.39 8 .01961 SEP 26 1712 19.11 19 16.90 154 59.10 7.06 7 .11961 SEP 26 2208 46.54 19 23.55 155 3.14 9.76 6 .01961 SEP 27 0250 10.58 19 13.04 155 2.01 5.76 7 .11961 SEP 27 2124 38.52 19 15.65 154 57.14 10.41 10 .11961 SEP 27 2129 41.49 19 16.24 154 57.42 12.54 10 .11961 SEP 28 1807 27.15 20 1.93 157 34.52 16.43 9 .01961 OCT 1 2210 23.81 19 10.76 155 36.88 0.70 10 .11961 OCT 2 0017 47.71 19 19.28 155 4.22 8.72 10 .11961 OCT 2 0706 58.18 19 24.74 155 14.97 22.87 6 .01961 OCT 4 0601 25.42 19 23.12 155 16.22 28.80 11 .11961 OCT 4 1357 39.63 19 28.78 155 22.10 34.47 8 .11961 OCT 5 0825 41.88 19 24.60 155 35.94 8.87 8 .11961 OCT 6 0147 13.28 19 18.93 155 17.74 0.44 7 .11961 OCT 6 1246 23.18 19 12.16 155 31.33 0.50 9 .1
37

---ORIGIN TIME (HST)-- -LAT N-- --LON W-- DEPTH N RMS ERH ERZ LOC PREF AZ MIN 9YEAR MON DA HRMN SEC DEG MIN DEG MIN KM RD SEC KM KM REMKS MAG GAP DS 1961 OCT 15 1905 22.46 19 40.53 155 17.10 50.95 10 .09 3.1 1.5 KEA 2.4X 227 21 1961 OCT 18 0834 28.72 19 50.32 155 40.93 1.67 8 .05 2.2 1.5 KEA 2.7X 288 61 1961 OCT 18 1715 32.09 19 49.23 156 2.14 6.44 7 .1310.311.9 HUA F- 3.1X 291 44 1961 OCT 20 0501 45.39 19 22.46 155 19.75 2.17 6 .11 .9 3.4 KAO 2.0X 129 7 1961 OCT 21 2051 56.26 19 21.58 155 15.61 27.53 8 .07 2.2 1.4 DEP # 162 2 1961 OCT 22 0949 46.13 19 8.47 155 38.62 10.02 6 .05 2.8 6.7 LSW 3.0X 249 10 1961 OCT 23 0504 49.31 19 25.68 155 14.77 29.01 9 .16 2.2 1.4 DEP 2.5X 123 5 1961 OCT 29 0725 21.53 19 31.40 155 58.93 7.06 6 .08 8.910.9 KON F- 344 62 1961 OCT 29 1139 10.40 19 41.94 155 12.67 20.96 8 .13 3.5 4.8 KEA 2.5X 219 13 1961 NOV 1 1148 19.45 19 24.25 155 14.58 30.67 8 .08 2.1 1.6 DEP 2.0X 142 4 1961 NOV 3 0913 14.50 20 4.43 155 39.88 29.06 9 .13 2.0 2.1 KOH 2.8X 160 6 1961 NOV 4 0624 29.60 19 23.44 155 30.06 8.37 10 .18 1.2 1.5 KAO 3.1X 152 13 1961 NOV 5 0656 27.39 19 49.01 155 31.16 12.82 10 .12 1.4 1.7 KEA 2.6X 140 28 1961 NOV 5 0720 52.73 19 24.29 155 15.37 29.79 10 .19 1.6 1.4 DEP 2.6X 123 3 1961 NOV 5 1337 25.42 19 23.97 155 18.28 14.75 5 .00 2.5 6.8 DEP 108 3 1961 NOV 5 1414 37.95 19 22.71 155 32.39 14.61 8 .12 1.3 1.2 DML 2.1X 161 17 1961 NOV 5 1602 22.10 19 23.45 155 19.01 8.37 5 .06 1.6 4.7 INT 123 4 1961 NOV 5 1651 19.39 19 23.17 155 16.91 23.73 5 .03 4.310.2 DEP - 130 2 1961 NOV 5 1702 45.43 19 21.91 155 16.86 35.13 9 .13 1.8 2.4 DEP # 2.0X 157 2 1961 NOV 8 1151 0.89 19 26.86 155 18.38 15.06 9 .10 1.0 .3 DEP 2.6X 109 3 1961 NOV 10 0538 17.64 19 26.49 155 16.94 17.58 9 .11 1.1 1.4 DEP F 3.3X 133 2 1961 NOV 10 0928 13.28 19 28.71 155 14.82 25.07 7 .06 1.5 1.6 DEP 2.5X 113 8 1961 NOV 12 1545 23.11 19 20.75 155 9.82 9.22 8 .07 1.3 1.8 SF3 2.9X 181 11 1961 NOV 14 0451 27.53 19 27.36 156 0.81 10.55 10 .12 5.6 7.5 KON F 3.3X 299 62 1961 NOV 16 0617 12.54 19 24.15 155 15.82 28.14 9 .14 1.8 2.5 DEP 2.7X 111 2 1961 NOV 16 0659 16.47 19 22.80 155 15.40 27.68 8 .08 2.2 1.3 DEP 157 1 1961 NOV 16 1510 16.26 19 25.59 155 17.62 28.08 8 .06 1.2 .8 DEP 3.0X 108 0 1961 NOV 16 1650 40.00 19 18.81 155 11.38 41.63 6 .07 6.0 7.9 DEP - 2.6X 278 10 1961 NOV 16 1903 50.18 19 17.23 155 26.31 45.60 9 .15 4.8 2.0 DLS 2.4X 184 8 1961 NOV 17 1719 42.94 19 22.68 155 16.65 31.61 7 .10 1.5 1.0 DEP 2.6X 113 1 1961 NOV 17 1748 46.98 19 24.05 155 14.84 30.76 8 .10 2.0 1.2 DEP 2.7X 141 4 1961 NOV 17 1933 26.24 19 25.16 155 15.91 28.99 9 .10 1.7 1.2 DEP 2.7X 104 2 1961 NOV 17 1956 49.09 19 45.63 156 9.94 6.72 8 .08 8.310.3 HUA F- 3.1X 301 59 1961 NOV 17 2247 39.32 19 21.15 155 17.17 26.45 7 .06 2.5 1.5 DEP 181 3 1961 NOV 17 2322 38.30 19 25.51 155 14.44 26.66 10 .17 1.3 1.5 DEP 2.6X 130 5 1961 NOV 17 2327 53.00 19 21.05 155 16.08 28.98 8 .07 2.2 1.5 DEP 163 3 1961 NOV 18 0344 1.00 19 24.25 155 15.07 29.09 11 .16 1.6 1.3 DEP 3.2X 131 4 1961 NOV 18 0809 14.08 19 22.10 156 7.10 6.91 8 .13 8.612.0 KON F- 3.3X 300 77 1961 NOV 18 0941 1.63 19 25.55 155 17.96 30.75 9 .10 2.3 1.2 DEP # 2.7X 170 1 1961 NOV 20 0140 24.48 19 25.59 155 18.08 27.89 9 .09 2.4 1.2 DEP 2.5X 171 1 1961 NOV 20 0313 17.12 19 21.59 155 16.24 26.05 7 .12 2.8 1.5 DEP 193 2 1961 NOV 20 0314 6.27 19 21.61 155 6.54 0.02 9 .06 1.2 .6 SSF # 2.7X 189 16 1961 NOV 20 0338 26.81 19 21.91 155 16.96 26.66 7 .07 2.5 1.3 DEP 188 2 1961 NOV 20 1325 23.39 19 24.22 155 14.52 28.50 6 .07 3.5 1.7 DEP 2.5X 272 4 1961 NOV 20 1400 57.83 19 23.53 155 16.14 28.96 7 .03 2.5 1.3 DEP 2.6X 101 2 

---ORIGIN TIME (HST)-- -LAT N-- --LON W-- DEPTH N RMYEAR MON DA HRMN SEC DEG MIN DEG MIN KM RD SE1961 NOV 20 1611 1.91 19 22.65 155 15.39 28.54 7 .01961 NOV 20 1940 27.75 19 25.26 155 15.23 28.90 10 .11961 NOV 21 0041 26.00 19 18.05 155 14.41 26.56 8 .01961 NOV 21 0242 57.08 19 20.82 155 15.67 29.21 9 .01961 NOV 21 0342 23.13 19 23.59 155 15.97 29.62 7 .01961 NOV 21 2322 39.78 19 23.18 155 13.24 23.67 8 .11961 NOV 21 2325 56.89 19 19.94 155 14.13 27.26 9 .01961 NOV 21 2327 6.05 19 17.95 155 11.82 21.40 8 .01961 NOV 21 2346 2.06 19 22.84 155 15.39 28.36 9 .01961 NOV 21 2348 19.26 19 24.32 155 16.58 28.36 9 .11961 NOV 22 0009 21.03 19 17.49 155 13.34 21.32 8 .11961 NOV 22 0327 30.06 19 22.11 155 14.19 28.29 9 .01961 NOV 22 0434 39.44 19 18.82 155 13.50 22.59 8 .21961 NOV 22 0536 36.58 19 25.88 155 14.30 19.26 6 .01961 NOV 22 0544 48.43 19 23.95 155 15.66 29.95 9 .01961 NOV 22 0735 58.57 19 23.14 155 15.65 30.59 6 .01961 NOV 22 0816 17.02 19 23.46 155 12.06 29.77 8 .11961 NOV 22 1055 55.86 19 23.39 155 16.03 27.07 9 .01961 NOV 22 1128 59.33 19 23.18 155 15.42 27.82 5 .01961 NOV 22 1631 57.70 19 21.97 155 15.11 29.00 8 .01961 NOV 22 1632 41.91 19 19.94 155 14.81 27.35 9 .11961 NOV 22 1932 17.67 19 21.30 155 16.24 29.35 8 .01961 NOV 23 0205 45.27 19 22.35 155 16.01 28.70 8 .11961 NOV 23 0447 32.81 19 21.71 155 16.19 26.45 8 .01961 NOV 23 0451 14.15 19 22.01 155 16.69 26.10 8 .01961 NOV 23 0639 41.16 19 22.49 155 16.70 28.71 8 .11961 NOV 23 0724 54.87 19 20.79 155 15.74 26.70 8 .11961 NOV 23 1042 36.94 19 28.21 155 13.86 14.69 6 .01961 NOV 23 1629 36.40 19 22.75 155 15.74 29.62 8 .11961 NOV 23 1709 55.93 19 25.48 155 18.89 29.68 8 .11961 NOV 23 1714 31.01 19 23.80 155 15.48 26.81 10 .11961 NOV 23 1730 42.08 19 21.84 155 17.75 26.13 7 .01961 NOV 24 0535 41.23 19 21.67 155 15.05 27.96 10 .11961 NOV 24 0806 16.18 19 22.64 155 14.19 27.95 6 .01961 NOV 24 1031 11.01 19 17.74 154 58.98 7.05 8 .21961 NOV 24 1557 46.86 19 21.88 155 15.60 28.19 6 .01961 NOV 24 1715 42.97 19 23.58 155 15.56 27.48 7 .01961 NOV 24 2046 58.64 19 17.56 155 40.69 1.05 7 .11961 NOV 25 0614 6.70 19 5.94 154 55.65 6.98 6 .11961 NOV 25 0614 22.04 19 16.64 155 7.64 12.90 9 .21961 NOV 25 1326 3.22 19 23.92 155 16.57 28.30 9 .01961 NOV 25 1914 58.98 19 21.53 155 16.85 29.37 8 .01961 NOV 25 2022 55.05 19 47.28 155 34.22 6.95 7 .01961 NOV 26 0910 40.99 19 20.85 155 15.15 25.93 8 .01961 NOV 26 2043 25.74 19 21.72 155 15.99 28.98 8 .0
38

---ORIGIN TIME (HST)-- -LAT N-- --LON W-- DEPTH N RMS ERH ERZ LOC PREF AZ MIN 11YEAR MON DA HRMN SEC DEG MIN DEG MIN KM RD SEC KM KM REMKS MAG GAP DS 1961 NOV 27 0035 5.58 19 19.65 155 15.55 30.02 8 .12 3.5 2.5 DEP # 2.6X 170 5 1961 NOV 27 0132 34.78 19 27.01 155 19.84 37.70 7 .08 2.7 1.9 DML 3.0X 187 5 1961 NOV 27 0215 53.97 19 19.47 155 26.69 13.72 6 .03 1.5 2.3 DML 300 6 1961 NOV 27 0451 22.88 19 21.64 155 13.83 33.68 10 .13 2.1 1.2 DEP F 3.4X 209 4 1961 NOV 27 0943 56.40 19 21.18 155 15.31 29.90 8 .06 2.2 1.5 DEP 2.8X 164 2 1961 NOV 27 1555 40.25 19 19.27 155 15.96 27.11 7 .07 1.9 1.6 DEP 2.8X 170 6 1961 NOV 28 0449 16.59 19 20.58 155 13.22 39.09 6 .05 4.2 1.7 DEP 307 6 1961 NOV 29 2105 8.37 19 21.84 155 58.80 6.85 6 .1510.312.7 KON - 344 62 1961 NOV 30 0646 10.03 19 21.98 155 16.71 25.63 6 .06 2.7 1.4 DEP 194 2 1961 NOV 30 1430 49.81 19 22.88 155 11.71 27.47 9 .10 1.3 1.8 DEP 2.8X 193 7 1961 NOV 30 1651 17.65 19 22.49 155 14.43 27.89 9 .07 2.0 1.1 DEP 2.7X 233 3 1961 NOV 30 1858 46.81 19 20.87 155 16.71 27.27 8 .12 2.4 1.6 DEP 3.0X 162 3 1961 NOV 30 1932 17.36 18 59.28 155 28.60 7.25 5 .09 3.713.8 LSW - 283 14 1961 NOV 30 2014 26.41 19 21.67 155 15.78 28.01 8 .09 2.3 1.5 DEP 2.8X 161 1 1961 DEC 1 0637 43.97 19 23.64 155 15.01 28.16 9 .07 1.9 1.0 DEP 2.5X 190 3 1961 DEC 1 0733 59.17 19 23.76 155 40.12 0.86 8 .09 1.111.2 MLO - 2.9X 194 30 1961 DEC 1 0909 38.28 19 21.98 155 14.43 29.95 8 .07 3.0 .9 DEP 3.0X 259 3 1961 DEC 2 0441 36.51 19 22.47 155 15.41 28.57 7 .04 2.8 1.6 DEP 2.8X 257 1 1961 DEC 2 1857 59.39 19 21.68 155 16.84 35.69 10 .08 1.1 1.8 DEP F 4.2X 158 2 1961 DEC 2 1940 2.86 19 21.65 155 16.24 31.20 8 .02 2.2 1.3 DEP 160 2 1961 DEC 2 2028 45.08 19 21.97 155 15.29 29.98 10 .07 1.2 1.0 DEP 2.4X 161 1 1961 DEC 3 0101 35.96 19 23.67 155 25.53 6.41 9 .11 1.0 2.5 KAO 2.4X 174 7 1961 DEC 3 1016 40.77 19 20.29 155 15.64 27.01 8 .12 2.4 1.9 DEP 167 4 1961 DEC 3 1021 16.02 19 22.77 155 16.22 27.55 8 .07 2.1 1.2 DEP 88 1 1961 DEC 3 1049 53.54 19 25.11 155 24.70 0.02 7 .11 1.6 .8 KAO # 2.2X 211 9 1961 DEC 3 1133 38.02 19 22.24 155 13.42 29.28 8 .06 2.7 2.2 DEP 2.6X 238 4 1961 DEC 3 1658 33.77 19 13.85 155 26.09 8.26 5 .02 2.6 1.3 LSW 2.2X 173 13 1961 DEC 4 0106 49.77 19 22.60 155 16.62 32.24 8 .09 1.1 1.7 DEP 2.7X 118 1 1961 DEC 4 0412 17.44 19 24.72 155 16.43 30.48 10 .14 1.3 1.2 DEP 2.3X 93 1 1961 DEC 4 0821 56.46 19 4.35 155 23.23 30.82 7 .07 4.2 3.1 LOI 247 21 1961 DEC 4 1408 3.29 19 24.16 155 17.31 31.10 10 .18 1.6 1.3 DEP 2.7X 79 1 1961 DEC 4 2008 58.04 19 21.06 155 16.81 30.98 8 .12 2.7 1.7 DEP 2.6X 161 3 1961 DEC 4 2327 50.25 19 20.66 155 52.30 3.63 7 .15 7.210.6 KON - 2.8X 295 43 1961 DEC 5 0154 20.38 19 20.41 155 9.98 11.23 9 .12 1.4 .9 SF3 2.7X 183 11 1961 DEC 5 0632 49.23 19 6.20 156 5.38 6.28 7 .13 8.812.6 KON - 3.6X 313 78 1961 DEC 5 1319 31.01 19 19.75 155 12.92 37.29 8 .06 3.3 2.5 DEP 3.1X 217 7 1961 DEC 5 1711 15.20 19 20.81 155 51.92 6.87 7 .09 2.2 1.4 KON 295 43 1961 DEC 5 2041 26.46 19 2.00 155 35.54 41.51 8 .14 5.5 7.1 DLS F 3.3X 318 3 1961 DEC 6 0308 5.91 19 20.47 155 1.30 39.90 8 .11 1.8 3.0 DEP 2.6X 246 19 1961 DEC 6 1857 41.85 19 22.79 155 15.09 30.69 7 .08 2.8 2.5 DEP 176 2 1961 DEC 6 2121 24.62 19 24.43 155 23.16 0.41 8 .12 .9 .6 KAO 2.2X 177 8 1961 DEC 7 0942 59.76 19 25.43 155 18.13 29.36 6 .06 3.2 1.2 DEP 3.0X 123 1 1961 DEC 7 1956 38.94 19 21.83 155 15.92 27.74 7 .04 2.3 2.0 DEP 2.5X 191 1 1961 DEC 7 2004 6.48 19 20.63 155 16.22 26.91 6 .06 2.8 1.4 DEP 258 3 1961 DEC 7 2040 55.78 19 21.22 155 16.28 28.26 6 .03 2.6 2.5 DEP 209 2 

---ORIGIN TIME (HST)-- -LAT N-- --LON W-- DEPTH N RMS YEAR MON DA HRMN SEC DEG MIN DEG MIN KM RD SEC 1961 DEC 7 2048 11.26 19 22.30 155 15.77 29.47 8 .01961 DEC 8 0444 47.71 19 22.34 155 16.88 30.02 7 .01961 DEC 9 1659 19.78 19 24.26 155 15.21 31.13 9 .12 1961 DEC 9 1937 52.97 19 37.75 156 0.72 7.15 8 .13 1961 DEC 10 2047 34.24 20 2.27 155 33.23 27.29 11 .13 1961 DEC 11 1703 17.12 19 18.58 155 54.02 0.25 9 .14 1961 DEC 11 2155 31.96 19 25.80 155 14.40 26.85 10 .12 1961 DEC 12 1919 10.97 19 18.75 155 17.42 26.79 8 .11961 DEC 13 0136 32.39 19 29.49 155 24.78 28.55 8 .11961 DEC 14 0328 42.31 19 18.41 155 16.54 34.72 7 .04 1961 DEC 14 1756 10.06 19 6.31 155 26.44 34.24 5 .01961 DEC 15 1037 21.36 19 30.15 154 48.37 9.68 6 .01961 DEC 15 1117 58.95 19 23.59 155 16.96 19.64 8 .01961 DEC 16 2048 59.82 19 36.01 155 18.36 0.52 9 .11961 DEC 17 0522 18.83 19 16.54 155 18.31 28.66 7 .13 1961 DEC 17 0546 15.53 19 21.16 155 16.74 25.70 8 .04 1961 DEC 17 0719 44.37 19 26.60 155 18.90 32.25 8 .01961 DEC 17 0750 52.44 19 40.95 155 52.45 19.37 9 .11961 DEC 20 0659 41.44 19 27.32 155 14.64 23.80 7 .21961 DEC 21 0030 6.95 19 21.19 155 15.28 31.80 7 .11961 DEC 21 0304 55.65 19 57.36 155 18.52 12.48 11 .11961 DEC 22 0557 46.21 19 18.43 155 38.26 0.52 7 .01961 DEC 23 0140 31.92 19 22.87 155 15.50 26.58 7 .01961 DEC 23 0501 11.80 19 21.92 155 15.92 28.87 7 .01961 DEC 23 0637 14.10 19 20.76 155 31.90 6.89 7 .01961 DEC 23 0818 32.88 19 22.56 155 16.74 29.39 8 .01961 DEC 23 1129 0.06 19 23.05 155 16.23 30.43 8 .01961 DEC 24 0741 21.23 19 18.49 155 15.44 3.03 7 .01961 DEC 24 1053 11.68 19 20.10 155 17.55 32.71 8 .01961 DEC 24 1054 41.25 19 25.03 155 15.48 27.37 9 .01961 DEC 24 2134 25.65 19 24.19 155 25.90 5.36 7 .12 1961 DEC 24 2229 35.51 19 26.56 155 25.61 3.69 9 .13 1961 DEC 25 1017 45.61 19 27.11 155 24.80 1.29 8 .12 1961 DEC 25 1959 24.24 19 19.19 155 5.97 12.48 6 .14 1961 DEC 26 1948 4.19 19 31.01 156 3.22 7.00 6 .11961 DEC 27 1714 28.23 19 13.74 155 38.45 5.90 9 .11961 DEC 28 0028 44.22 19 16.80 154 58.01 5.28 7 .01961 DEC 28 2242 57.42 19 23.67 155 13.28 30.91 9 .01961 DEC 28 2243 33.96 19 23.22 155 15.71 28.08 9 .11961 DEC 28 2251 2.05 19 22.03 155 16.68 27.62 7 .04 1961 DEC 28 2339 25.14 19 20.05 155 12.62 10.88 4 .01961 DEC 28 2344 7.13 19 22.35 155 15.67 29.63 7 .03 1961 DEC 28 2346 9.48 19 5.40 155 27.85 44.27 9 .01961 DEC 28 2350 0.53 19 1.88 155 25.55 53.52 6 .12 1961 DEC 29 0001 16.36 19 22.15 155 16.90 27.36 7 .0
39

---ORIGIN TIME (HST)-- -LAT N-- --LON W-- DEPTH N RMS ERH ERZ LOC PREF AZ MIN 13YEAR MON DA HRMN SEC DEG MIN DEG MIN KM RD SEC KM KM REMKS MAG GAP DS 1961 DEC 29 0100 13.95 19 23.08 155 16.16 29.34 6 .01 3.0 1.5 DEP 183 1 1961 DEC 29 0223 41.95 19 23.78 155 17.77 28.48 7 .07 2.6 1.3 DEP 109 2 1961 DEC 29 0245 14.24 19 22.17 155 14.52 30.12 6 .03 3.2 1.6 DEP 297 2 1961 DEC 29 1114 53.95 19 23.15 155 15.97 25.94 7 .09 2.6 1.5 DEP 2.6X 105 1 1961 DEC 29 1122 3.87 19 23.03 155 15.19 27.45 7 .08 2.7 1.5 DEP 159 2 1961 DEC 29 1356 11.95 19 23.69 155 14.63 28.65 7 .03 2.5 1.4 DEP 154 3 1961 DEC 29 1609 7.85 18 59.24 155 15.77 11.38 7 .22 2.0 1.7 LOI 284 35 1961 DEC 29 2014 13.47 19 23.53 155 15.43 25.23 7 .07 2.4 1.4 DEP 132 2 1961 DEC 29 2307 50.99 19 22.11 155 15.43 29.28 7 .05 2.6 1.4 DEP 190 1 1961 DEC 30 0334 56.83 19 24.75 155 16.98 30.83 9 .11 1.9 1.4 DEP 2.0X 81 0 1961 DEC 30 1209 30.16 19 48.43 155 27.20 6.95 7 .08 1.311.8 KEA - 2.5X 292 39 1961 DEC 30 1308 22.38 19 22.72 155 16.64 27.28 7 .04 1.7 1.6 DEP 2.9X 135 1 1961 DEC 31 0603 23.85 19 47.70 155 32.69 13.26 9 .10 1.4 1.7 KEA F 2.8X 171 28 1961 DEC 31 0743 45.15 19 22.89 155 27.36 2.20 9 .10 1.0 1.4 KAO 3.1X 187 9 1961 DEC 31 0813 6.95 19 15.77 155 13.07 10.97 9 .13 1.3 .9 SF2 2.3X 248 13 1961 DEC 31 0852 10.16 19 21.49 155 14.65 28.34 10 .15 1.8 2.3 DEP F 4.1X 198 3 1961 DEC 31 0901 39.43 19 22.79 155 15.27 27.68 7 .04 2.5 1.4 DEP 169 1 1961 DEC 31 0914 7.93 19 24.67 155 14.24 29.96 7 .08 3.0 1.7 DEP 142 5 1961 DEC 31 0937 42.90 19 22.67 155 15.42 30.70 7 .13 3.5 1.8 DEP 172 1 1961 DEC 31 0954 35.42 19 22.45 155 13.88 30.32 7 .07 2.9 1.6 DEP 191 4 1961 DEC 31 1103 55.55 19 21.81 155 13.86 29.75 9 .12 1.9 1.5 DEP 2.6X 166 4 1961 DEC 31 1136 27.98 19 23.77 155 14.62 25.96 9 .13 1.6 1.5 DEP 1.9X 152 3 1961 DEC 31 1138 19.14 20 47.30 154 49.31 15.09 11 .11 3.8 7.4 DIS 3.5X 276121 1961 DEC 31 1342 40.21 19 23.38 155 13.42 26.49 8 .08 1.2 1.5 DEP 2.3X 180 5 1961 DEC 31 1907 23.08 19 23.09 155 16.62 28.07 11 .12 1.5 1.3 DEP 2.7X 111 2 1961 DEC 31 2320 36.37 19 24.43 155 17.08 29.85 8 .04 1.7 1.2 DEP 2.7X 161 1