Catalogue of U.S. Geological Survey 

Strong-Motion Records, 1988 
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Catalogue of U.S. Geological Survey 

Strong-Motion Records, 1988 

Compiled by JOSEPHINE C. SWITZER and 

RONALD L. PORCELLA 

U.S. GEOLOGICAL SURVEY CIRCULAR 1057 
U.S. DEPARTMENT OF THE INTERIOR 

MANUEL LUJAN, JR., Secretary 

U.S. GEOLOGICAL SURVEY 

Dallas L. Peck, Director 

Any use of trade, product, or firm names 

in this publication is for descriptive purposes only 

and does not imply endorsement by the U.S. Government 

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 1990 

For sale by the 

Books and Open-File Reports Section 

U.S. Geological Survey 

Federal Center, Box 25425 

Denver, CO 80225 

Library of Congress Cataloging Card No. 83-600616 
PREFACE 

The first seismic engineering program in the United States was administered by the 

Seismological Field Survey (SFS) of the Coast and Geodetic Survey. This program was 

begun in 1931 and essentially remained the responsibility of the SFS until1973, when the 

U.S. Geological Survey (USGS) assimilated the program into its National Earthquake 

Hazards Reduction Program. The current Federal seismic engineering program operates 

the National Cooperative Strong-Motion Network (NCSMN) with nearly 1,000 stations in 

40 States and Puerto Rico. This network is administered by the USGS in cooperation with 

both private industry and numerous Federal, State, and local agencies and organizations. 

Major contributors include the Army Corps of Engineers, the Veterans Administration, and 

the Metropolitan Water District of Southern California. Primary objectives of the program 

are to record strong ground motions and the response of representative engineered structures 

during moderate to large earthquakes, and to disseminate the resultant data and information 

about the records, sites, and structures to the earthquake engineering research and design 

community. 

This catalogue continues in a revised format the yearly publication "Strong-Motion 

Program Report, January-December [year]"; it is a continuation of the table 1 summary of 

accelerograms recovered at NCSMN stations that had been published in that format since 

1974. This report includes all accelerograms recovered during 1988. Unless otherwise 

noted, event data are from the ''Preliminary Detennination of Epicenters," published monthly 

by the USGS. 

Ill 

CONTENTS 

Preface m 

Introduction 1 

References 1 

TABLE 

1. Catalogue of National Cooperative Strong-Motion Network accelerograph 

records recovered during 1988 3 

v 

Catalogue of U.S. Geological Survey 

Strong-Motion Records, 1988 

Compiled by Josephine C. Switzer and Ronald L. Porcella 

INTRODUCTION 

The National Cooperative Strong-Motion Network (NCSMN), with stations in 40 

states and Puerto Rico, produced nearly 300 accelerograph records at recording sites in 

California, Alaska, and Hawaii during the period January-December 1988; more than 80 

percent were recorded in California. The network has produced an annual average of 250 

records for the years 1974 through 1987. Although there were no significant strongmotion events recorded during 1988, there were nine notable earthquakes in the magnitude 

range 4.6 to 5.6 that produced several interesting suites of records at a total of 87 NCSMN 

stations. Eight of these events occurred in California and one in southern Alaska. 

An ML=4.7 earthquake in the Imperial Valley of California triggered 11 stations on 

January 28 (G.m.t.); the event was located on the Superstition Hills fault with an epicenter 

very near the Parachute Test Site recording station, where the maximum horizontal ground 

acceleration reached 0.17 g. 

On February 11 an ML=4.7 aftershock of the October 1, 1987, Whittier Narrows 

earthquake triggered 19 accelerograph stations in the Los Angeles region. This aftershock 

was located approximately 3 km northeast of the main shock epicenter and produced 

strong-motion recordings at eight buildings, nine dam/reservoir facilities, one hospital, and 

one ground site (Acosta and others, 1988). Peak horizontal motion exceeded 0.2 g at three 

locations: the basement of a 10-story building in Whittier, the upstream station at Whittier 

Narrows Dam, and the abuttnent station at Garvey Reservoir. 

On February 20, an ML=5.3 earthquake in central California triggered three 

accelerographs in the Hollister region (Salsman and Forshee, 1988). Peak recorded ground 

motion reached 0.21 g on one of 13 horizontal components operating at the Hollister Differential Array. 

Two earthquakes along the Calaveras fault zone in northern California on June 13 

and November 10 each triggered seven strong-motion stations at epicentral distances in the 

range 8 to 28 km. The ML =5.4 June 13 event occurred at a depth of 7 km and produced a 

peak horizontal ground acceleration of 0.11 g in Fremont. The ML =4.8 November 10 event 

occurred at a 9-km depth and produced a peak horizontal ground acceleration of 0.17 gat the 

Interstate 280/101 Interchange abuttnent site in San Jose. The epicentral distances for 

these two peak recordings were 22 and 9 km, respectively (Salsman and Switzer, 1990). 

On June 26, a magnitude 4.6 (ML) earthquake near Upland in southern California 

produced significant ground motions at three of four stations triggered by this event. Peak 

motions and their locations were 0.12 gat Weymouth Filter Plant, 0.23 gat Live Oak Reservoir Abuttnent, and 0.31 g at San Antonio Dam Downstream. 

An ML=4.9 earthquake on December 3 near Pasadena triggered strong-motion instrumentation at 23 stations in the Los Angeles region; epicentral distances were in the range 8 

to 42 km (Acosta and Johnson, 1989). Acceleration records were recovered from 45 

instruments located at five ground sites, four dams, one reservoir, two filter plants, three 

hospitals, and eight buildings. Maximum horizontal ground acceleration was 0.12 g, recorded at two stations in the vicinity of Los Angeles. 

Manuscript approved for publication, September 21, 1990. 

1 
On December 16 an ML=4.8 earthquake in southern California triggered seven stations in the North Palm Springs region. Peak recorded ground acceleration was 0.15 g at the 

Whitewater Trout Farm station, located on rock approximately 5 km north of the San 

Andreas fault zone. 

REFERENCES 

Acosta, A.V., Nielson, J.D., and Switzer, J.C., 1988, Strong-motion data from the Whittier Narrows 

aftershock of February 11, 1988: U.S. Geological Survey Open-File Report 88-357, 27 p. 

Acosta, A.V., and Johnson, D.A., 1989, Strong-motion data from the Pasadena, California, earthquake of December 3, 1988: U.S. Geological Survey Open-File Report 89-203, 57 p. 

Salsman, M.J., and Forshee, R.D., 1988, Strong-motion data from the Hollister earthquake of February 

20, 1988: U.S. Geological Survey Open-File Report 88-565, 12 p. 

Salsman, M.J., and Switzer, J.C., in press, Strong-motion records from the Calaveras fault earthquakes of June 13, 1988, November 10, 1988, and April 3, 1989: U.S. Geological Survey 

Open-File Report 90-481,36 p. 

2 
Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988 

[Station owners: ACOE, U.S. Army Corps of Engineers; BECH, Bechtel Power Corporation; CLA, City of Los Angeles; GLDN, U.S. Geological Survey, Golden, Colorado; JCG, JCG Finance Corporation of 

America; MANC, Municipality of Anchorage, Alaska; MWD, Metropolitan Water District of Southern 

Calif.; OWNR, Owner of building; UCB, University of California at Berkeley; USGS, U.S. 

Geological Survey; VA, U.S. Veterans Administration. Instrument trigger time in minutes and 

seconds after the hour listed in earthquake column. Trigger time in brackets is a P-wave 

arrival time as event occurred while instrument was operating. S-minus trigger denotes 

i-wave-arrival-minus-1rigger-time (i-1) or i-wave-minus-f-wave-arrival-time (i-~, in brackets) 

interval. Direction is of case acceleration for upward trace deflection on accelerogram; horizontal components are listed as azimuth, and vertical components as "up" or "down." Maximum 

amplitude is peak acceleration recorded at ground level on one verticaltind two orthogonal horizontal components unless otherwise noted. Duration is interval between first and last peaks of acceleration greater than 0.10 ~-] 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger (az) amplitude ( s) 

(0) ( s) (~) 

7 November 1987 Bear Valley Station 14 36.569N 06:04.9 2.9 (1) 

1506:01.2 G.m.t. Upper Butts Ranch 121.043W 

Central Calif. (USGS) 

36.583N, 121.218W 

Magnitude 4.0 ML 

4 January 1988 Superstition Mountain 32.955N 09:42.6 (2) ( 1) 

1309 G.m.t. Camera Site 115.823W 

Southern Calif. (USGS) Epicenter and 

additional record magnitude 1 unknown Note: One recovered at Superstition Mountain Camera Site. 

12 January 1988 McGee Creek 37.550N 44:20.64 (2) (1) 

0444 G.m.t. Crowley Lake 118.811W 

Central Calif. (USGS) (Triaxial) 

Epicenter and 

44:20.6 magnitude 4 unknown McGee Creek 37.550N 

Crowley Lake 118.811W 

(USGS) (Multi-channel) 

166 m Downhole (2) (1) 

35 m Downhole (2) (1) 

1 m Downhole (2) (1) 

Surface (2) (1) 

2 October 1987- San Antonio Dam 34.157N (3) (2) 20 January 1988 Upland 117.676W 

Southern Calif. (ACOE) 

Epicenter and 

magnitude unknown Crest (1) 

Downstream (1) 

28 January 1988 Brawley Airport 32.991N (3) 3.0 315 .09 0.0 

0254:02.3 G.m.t. Hangar 115.512W Up .03 0.0 

Southern Calif. (USGS) 225 .07 0.0 

32.910N, 115.680W 

Magnitude 4.7 ML 

3 
Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger ( az) amplitude ( s) 

(0) ( s) (_gJ 

28 January 1988 El Centro 32.929N 54:04.1 1.7 315 .16 0.5 

0254:02.3 G.m.t. Parachute Test Site 115.699W Up .08 0.0 

Southern Calif. (USGS) 225 .17 0.3 

32.910N, 115.680W 

Magnitude 4.7 ML El Centro Array #5 32.855N 54:11.8 (2) ( 1) (Continued) Jam~ Road 115.466W 

(USGS) 

El Centro Array #9 32.794N (3) 3.3 (1) 

Commercial Avenue 115.549W 

(USGS) 

El Centro Array #10 32.780N (3) (2) (1) 

Community Hospital 115 .567W 

(USGS) 

El Centro Array #11 32.752N 54:07.7 4.1 (1) 

McCabe School 115.594W 

(USGS) 

El Centro 32.800N 54:07.2 3.7 230 .08 0.0 

Meadows Union School 115.473W Up • 01 0.0 

(USGS) 140 .05 0.0 

El Centro Array #8 32.811N 54:06.2 3.3 230 .15 0.1 

Cruickshank Road 115.532W Up .05 0.0 

(USGS) 140 .16 0.1 

El Centro Array #6 32.839N 54:06.9 3.2 230 .05 0.0 

Huston Road 115.487W Up .02 

(USGS) 140 .07 0.0 

El Centro 32.796N 54:06.7 3.3 360 .04 0.0 

Differentia 1 Array 115.535W Up .01 0.0 

(USGS) 270 .05 0.0 

Note: One additional record1 recovered at El Centro Differential Array. 

Calexico 32.669N 54:11.6 (2) (1) 

Fire Station 115.492W 

(USGS) 

1 February 1988 Honokaa, Hawaii 20.080N 42:26.44 (2) (1) 

1142 G.m.t. Police Station 155.465W 

Hawaii (USGS) 

Epicenter and 

magnitude unknown 

1 February 1988 Honokaa, Hawaii 20.080N . 4 18.00.2 (2) (1) 

1518 G.m.t. Police Station 155.465W 

Hawaii (USGS) 

Epicenter and 

magnitude unknown 

4 
Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger (az) amplitude ( s) 

(0) (s) (.gJ 

7 February 1988 Anchorage 61.182N (3) 18.6 (1) 

0846:58.6 G.m.t. Fire Station #4 149.848W 

Southern Alaska (MANC) 

60.296N, 152.972W 

Seven additional records Magnitude 1 5.6 MB Note: recovered at Anchorage Fire Station #4. 

Anchorage 61.186N (3) (2) (1) 

Fire Station #5 149.921W 

(MANC) 

Anchorage 61.216N (3) (2) (1} 

New Federal Building 149.883W 

(USGS) 

Anchorage 61. 209N 47:54.44 (2) (1) 

Lutheran Church 149.891W 

(USGS/GLDN) 

Homer 59.64 N (3) 14.2 (1) 

Airport Fire Station 151.50 w 

(USGS) 

Seward 60.101N (3) (2) 

Fire Station #1 149.434W 

(USGS) 

Basement ( 1} 

11 February 1988 Whittier Narrows Dam 34.020N (3) 2.2 

1525:55.6 G.m.t. Pica Rivera 118 .053W 

Southern Calif. (ACOE) 

34.080N, 118.050WL 

Magnitude 4.7 ML Crest 033 .11 1 peak 

Up .09 0.0 

303 .13 1 peak 

Upstream 152 .24 1.2 

Up .19 0.7 

062 .24 0.7 

Garvey Reservoir 34.050N (3) 2.5 

Monterey Park 118.114W 

(MWD) 

Abutment Bldg. 060 .22 0.3 

Up .11 1 peak 

330 .15 0.6 

Alhambra 34.085N (3) 1.1 

900 S. Fremont 118.149W 

(USGS) 

Basement 090 .07 0.0 

Up .03 0.0 

360 .06 0.0 

5 
Catalogue of National Cooperative Strong-"otion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger (az) amplitude ( s) 

(0) (s) (JI) 

11 February 1988 Alhambra, 900 s. Fremont (Continued) 

1525:55.6 G.m.t. 6th Floor 090 .06 0.0 

Southern Calif. Up .03 0.0 

34.080N, 118.050W 360 .06 0.0 

Magnitude 4.7 ML 

(Continued) 12th Floor 090 .03 0.0 

Up .05 0.0 

360 .03 0.0 

Whittier 33.976N (3) 2.1 

7215 Bright Ave. 118. 036W 

(USGS) 

Basement 180 .20 1 peak 

Up .06 0.0 

090 .12 1 peak 

5th Floor 180 .13 1 peak 

Up .13 1 peak 

090 .20 0.5 

lOth Floor 180 .09 0.0 

Up .12 1 peak 

090 .15 0.3 

Norwalk 33.916N (3) 

12400 Imperial Highway 118.067W 

( USGS/BECH) 

Basement (1) 

4th Floor 090 .03 0.0 

Up .05 0.0 

360 .08 0.0 

Roof 090 .03 0.0 

Up .06 0.0 

360 .09 0.0 

South Ground Site 090 .05 0.0 

Up .04 0.0 

360 .07 0.0 

Norwalk 33.916N 26:00.4 3.8 

12440 Imperial Highway 118.065W 

(USGS/BECH) 

Basement 090 .05 0.0 

Up .04 0.0 

360 .06 0.0 

North Ground Site 26:01.7 3.6 090 .07 0.0 

Up .05 0.0 

360 .09 0.0 

6 
Earthquake 

11 February 1988 

1525:55.6 G.m.t. 

Southern Calif. 

34.080N, 118.050W 

Magnitude 4.7 ML 

(Continued) 

Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Stat ion name 

(owner) 

Station 

location 

{0) 

Trigger S-minus Direction 

time trigger (az) 

( s) 

Norwa 1 k, 12440 Imperial Highway (Continued) 

South Ground Site 26:01.7 3.6 090 

Up 

360 

Structure Array 1: 

Ch. 1- 7th Floor, Center 090 

Ch. 2- 5th Floor, Center 090 

Ch. 3- 2nd Floor, Center 090 

Ch. 4- 1st Floor, Center 090 

Ch. 5- Basement, East 360 

Ch. 6- 5th Floor, West-Center 360 

Ch. 7- Basement, Center Up 

Ch. 8- Basement, Center 090 

Ch. 9- Basement, Center 360 

Ch. 10- 30 ft. Downhole, Bldg. Center Up 

Ch. 11- 30 ft. Downhole, Bldg. Center 090 

Ch. 12- 30 ft. Downhole, Bldg. Center 360 

Structure Array 2: (frequent hesitations of approx. 0.1 

Ch. 13- 7th Floor, East 360 

Ch. 14- 5th Floor, East 360 

Ch. 15- 2nd Floor, East 360 

Ch. 16- 1st Floor, East 360 

Ch. 17- 7th Floor, Center 360 

Ch. 18- 5th Floor, Center 360 

Ch. 19- 2nd Floor, Center 360 

Ch. 20- 1st Floor, Center 360 

Ch. 21- 7th Floor, West 360 

Ch. 22- 5th Floor, West 360 

Ch. 23- 2nd Floor, West 360 

Ch. 24- 1st Floor, West 360 

Los Angeles 34.081N (3) 0.3 130 . 

4407 Jasper Street 118.188W Up 

(USGS) 040 

Los Angeles 33.996N (3) 3.1 010 

Bulk Mail Facility 118.162W Up 

(USGS) 280 

Los Angeles 34.067N (3) (2) 

1111 Sunset Blvd. 118.248W 

(MWD) 

Basement 

4th Floor 

Roof 1 evel (8th) 

7 

Maximum Duration 

amplitude (s) 

(.gJ 

.05 0.0 

.07 0.0 

.08 0.0 

.03 0.0 

.03 0.0 

.05 0.0 

.08 0.0 

.08 0.0 

.11 ~ peak 

.05 0.0 

.05 0.0 

.08 0.0 . 04 0.0 

.03 0.0 

.05 0.0 

s on this film) 

.13 1 peak 

.08 0.0 

.09 0.0 

.09 0.0 

.15 2 peaks 

Inoperative 

.10 1 peak 

.11 1 peak 

.10 1 peak 

.06 0.0 

.08 0.0 

.09 0.0 

.06 0.0 

.03 0.0 

.07 0.0 

.14 0.1 

.08 0.0 

.11 2 peaks 

( 1) 

(1) 

( 1) 
Catalogue of National Cooperative Strong-"otion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger ( az) amplitude ( s) 

(0) (s) ~) 

11 February 1988 Los Angeles 34.052N 26:05.0 (2) 

1525:55.6 G.m.t. 1100 Wilshire Blvd. 118.263W 

Southern Calif. (JCG/USGS) 

34.080N, 118.050W 

Magnitude 4.7 ML Basement 3 NE (1) 

(Continued) 

Basement 3 SE (1) 

Basement 4 NW (1) 

Structure Array: 

Ch. 1- 12th Floor, North (1) 

Ch. 2- 12th Floor, North (1) 

Ch. 3- 12th Floor, South (1) 

Ch. 4- 13th Floor, North (1) 

Ch. 5- 13th Floor, North ( 1) 

Ch. 6- 13th Floor, South (1) 

Ch. 7- 32nd Floor, North (1) 

Ch. 8- 32nd Floor, North (1) 

Ch. 9- 32nd Floor, South (1) 

Ch. 10- Ground Floor, North (1) 

Ch. 11- Ground Floor, North ( 1) 

Ch. 12- Ground Floor, South ( 1) 

Orange County 33.936N (3) (2) 

Reservoir, Brea 117.884W 

(MWD) 

Abutment (1) 

Brea Dam 33.890N (3) 3.9 

Fullerton 117. 925W 

(ACOE) 

Crest 130 .07 0.0 

Up .05 0.0 

040 .18 0.7 

Left Abutment 130 .05 0.0 

Up .04 0.0 

040 .07 0.0 

Downstream 130 .05 0.0 

Up .04 0.0 

040 .09 0.0 

Carbon Canyon Dam 33.914N (3) 2.5 

Brea 117 .839W 

( ACOE) 

Crest 130 .05 0.0 

Up .02 0.0 

040 .05 0.0 

8 
Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger (az) amplitude ( s) 

(0) ( s) (.y) 

11 February 1988 Diemer Filter Plant 33.913N (3) 3.5 

1525:55.6 G.m.t. Yorba Linda 117.819W 

Southern Calif. (MWD) 

34.080N, 118.050W 

Magnitude 4.7 ML Admin. Bldg. Basement (1) 

(Continued) 

Reservoir Roof ( 1) 

Long Beach, CSULB 33.777N (3) 2.2 (1) 

Humanities Bldg. 118 .112W 

Basement (USGS) 

Long Beach 33.778N (3) 3.0 

VA Hospital 118.118W 

(VA) 

Basement (1) 

6th Floor (1) 

11th Floor ( 1) 

San Antonio Dam 34.157N (3) (2) Upland 117.676W 

(ACOE) 

Crest 090 .02 0.0 < 

Up .02 0.0 

360 .06 0.0 

Prado Dam 33.890N (3) (2) Corona 117. 641W 

(ACOE) 

Crest (1) 

Downstream 090 .07 0.0 

Up .02 0.0 

360 .08 0.0 

Jensen Filter Plant 34.312N (3) (2) Balboa Ave. 118.496W 

(MWD) 

Administration Bldg. (1) 

Generator Bldg. ( 1) 

Reservoir Roof (1) 

20 February 1988 Hawaii National Park 19.329N 47:05.74 1.4 (1) 

0447:04.7 G.m. t. Wahaula Maint. Center 155.031W 

Hawaii (USGS) 

19.354N, 155.026W 

Magnitude 4.1 ML 

9 
Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) 1 ocation time trigger (az) amplitude ( s) 

(0) ( s) (.gJ 

20 February 1988 Ho 11 i ster 36.807N (3) 1.6 360 .06 0.0 

0839:57.5 G.m.t. Damler Residence 121.408W Up .05 0.0 

Central Calif. (UCB) 270 .06 0.0 

36.803N, 121.302W 

Magnitude 5.3 ML Ho 11 i ster 36.765N 40:02.8 0.4 360 .06 0.0 

Sago Vault 121.446W Up .02 0.0 

(UCB) 270 .05 0.0 

Hollister Differential 36.888N (3) 2.9 255 .11 0.1 

Array, (Triaxial) 121.413W Up .07 0.0 

(USGS) 165 .17 1 peak 

2 March 1988 Kealakekua, Hawaii 19.523N 42:16.14 (2) ( 1) 

0841:56.5 G.m.t. Kana Hospital 155.879W 

Hawaii (USGS) 

19.329N, 155.213W 

Magnitude 4.9 MB Pahala, Hawaii 19.20 N (3) (2) ( 1) 

Kau Hospital 155.47 w 

(USGS) 

Hawaii National Park 19.423N 42:05.34 1.2 (1) 

Volcano Observatory 155.291W 

(USGS) 

6 March 1988 Bancas Point 59.953N 38:26.64 (2) (1) 

2235:38.1 G.m.t. (USGS) 139.635W 

Gulf of Alaska 

38:22.94 56.953N, 143.032W Sunshine Point 60.180N (2) (1) 

Magnitude 7.4 ML (USGS) 142.838W 

Guyot Hi 11 s 60.146N 38:29.34 (2) (1) 

(USGS) 141.472W 

Yakutat 59.543N (3) (2) (1) 

USGS Building 139.726W 

(USGS) 

13 March 1988 Hawaii National Park 19. 329.N 28:48.54 1.5 (1) Time incomplete Wahaula Maint. Center 155.031W 

Hawaii (USGS) Epicenter and 

magnitude unknown 

21 March 1988 Bear Valley Station 10 36.532N (3) 1.4 (1) 

Time incomplete Webb Residence 121.143W 

Central Calif. (USGS) 

Epicenter and 

magnitude unknown 

26 March 1988 Malibu Canyon 34.08 N 54:23.2 1.8 (1) 

1454:20.4 G.m.t. Monte Nido Fire Stn. 118.69 w 

Southern Calif. (USGS) 

34.000N, 118.710W 

Magnitude 3.7 ML 

10 
Catalogue of National Cooperative Strong-"otion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger ( az) amplitude ( s) 

(0) ( s) (.g.) 

28 March 1988 Kealakekua, Hawaii 19.523N 33:57.54 (2) (1) 

0333:40.8 G.m.t. Kona Hospital 155.879W 

Hawaii (USGS) 

19.936N, 156.445W 

34:12.6 Magnitude 4 5.6 MB Waimea, Hawaii 20.026N (2) (1) 

Fire Station 155.664W 

(USGS) 

4 April 1988 Coalinga 36.229N 45:50.6 2.1 ( 1) 

2045:48.7 G.m.t. Oil City 120.360W 

Central Calif. (USGS) 

36.303N, 120.405W 

Magnitude 3.5 ML 

21 April 1988 Chalfant Valley Array 37.402N 46:09.44 0.5 (1) 

2346 G.m.t. Laws 118.346W 

Central Calif. (USGS) Epicenter and 

magnitude unknown 

11 Mry 1988 Honokaa, Hawaii 20.080N 14:37.44 (2) (1) 

2314:17.8 G.m.t. Police Station 155.465W 

Hawaii (USGS) 

19.797N, 155.518W 

14:38.5 Magnitude 4 4.2 ML Waimea, Hawaii 20.026N 360 .12 0.1 

Fire Station 155.664W Up .03 0.0 

(USGS) 270 .06 0.0 

16 May 1988 Middleton Island 59 •. 443N 39:18.84 (2) (1) 

1740:18.5 G.m.t. FAA TS Bldg. 146.332W 

Gulf of Alaska (USGS) 

59.378N, 146.338W 

Magnitude 3.6 ML 

17 May 1988 Borrego Springs 33.210N 38:42.1 (2) (1) 

1938:37.9 G.m.t. Scripps Clinic 116.330W 

Southern Calif. (USGS) 

33.240N, 116.250W 

Magnitude 3.8 ML 

28 May 1988 McGee Creek 37.550N 08:58.1 (2) 180 .06 0.0 

1808:55.5 G.m.t. Crowley Lake 118.811W Up .05 0.0 

Eastern Calif. (USGS) (Triaxial) 090 .06 0.0 

37.497N, 118.880W 

Magnitude 4.1 ML McGee Creek 37.550N 08:58.1 

Crowley Lake 118.811W 

(USGS) (Multi-channel) 

166 m Downhole (2) (1) 

35 m Downhole (2) (1) 

11 
Earthquake 

28 May 1988 

1808:55.5 G.m.t. 

Eastern Calif. 

37.497N, 118.880W 

Magnitude 4.1 ML 

(Continued) 

4 February 1987-

4 June 1988 

Hawaii 

Epicenters and 

Catalogue of National Cooperative Strong-"otion Network 

accelerograph records recovered during 1988--Continued 

Station name Station Trigger S-minus Direction 

(owner) location time trigger ( az) 

(0) ( s) 

McGee Creek (Continued) 

1 m Downhole (2) 

Surface (2) 360 

Up 

090 

Hilo, Hawaii 19.72 N (3) (2) Hilo Hospital 155.12 w 

(USGS) 

magnitudes unknown Honomalino, Hawaii 19.169N (3) (2) 

(USGS) 155.868W 

Note: One additional record1 recovered at Honomalino. 

Mauna Kea, Hawaii 19.752N (3) (2) State Park 155.530W 

(USGS) 

Maximum 

amplitude 

(.g) 

(1) 

.06 

.05 

.07 

(1) 

(1) 

(1) 

Note: Two additional records1 recovered at Mauna Kea State Park. 

Mauna Loa, Hawaii 19.539N (3) (2) (1) 

Weather Observatory 155.580W 

(USGS) 

10 June 1988 Jensen Filter Plant 34.312N (3) (2) 2306:43.0 G.m.t. Balboa Ave. 118.496W 

Southern Calif. (MWD) 34.940N, 118.740W 

Magnitude 5.4 ML Basement (1) 

Generator Room (1) 

Reservoir Roof (1) 

Leona Valley 34.62 N 07:00.2 (2) (1) 

Fire Station 118.29 w 

(USGS) 

11 September 1987- Whittier 60.778N (3) (2) (1) 12 June 1988 RR Dock Building 148.692W 

Alaska (USGS) Epicenters and 

Duration 

( s) 

0.0 

0.0 

0.0 

magnitudes unknown Note: One additional record1 recovered at Whittier RR Dock Building. 

13 June 1988 Anderson Dam 37.166N 45:43.5 3.1 

0145:36.8 G.m.t. Morgan Hill 121.626W 

Central Calif. (USGS) 

37.385N, 121.772W 

Magnitude 5.4 ML Downstream (1) 

12 
Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger ( az) amplitude ( s) 

(0) (s) (Jl) 

13 June 1988 Livermore VA Hospital 37.625N (3) 3.7 

0145:36.8 G.m.t. Building 62 121.762W 

Central Calif. (VA) 37.385N, 121.772W 

Magnitude 5.4 ML Basement ( 1) (Continued) 

Roof (7th Floor) 125 .03 0.0 

Up • 01 0.0 

035 .06 0.0 

Milpitas 37.437N (3) 2.9 360 .09 0.0 

Rivera Street 121.879W Up .02 0.0 

(USGS) 270 .07 0.0 

Calaveras Array 37.515N (3) 2.1 (1) 

Sunol Regional Park 121.830W 

(USGS) 

Calaveras Array 37.452N (3) 1.5 180 .07 0.0 

Calaveras Reserv. So. 121.807W Up .03 ' 0.0 

(USGS) 090 .08 0.0 

Calaveras Array 37.597N (3) (2) 180 .06 0.0 

Sunol Forest Fire Sta. 121.880W Up .03 0.0 

(USGS) 090 .06 0.0 

Fremont, Emerson Ct. 37.535N (3) 3.5 180 .06 0.0 

Mission San Jose 121.929W Up .05 0.0 

(USGS) 090 .10 1 peak 

21 June 1988 Pahala, Hawaii 19.20 N 50:25.74 (2) (1) 

0150:25.1 G.m.t. Kau Hospital 155.47 w 

Hawaii (USGS) 

19.314N, 155.490W 

Magnitude 4.0 MD 

26 June 1988 Live Oak Reservoir 34.137N (3) 0.9 

1504:58.4 G.m.t. LaVerne 117.753W 

Southern Calif. (MWD) 

34.140N, 117.710W 

Magnitude 4.6 ML Abutment 180 .23 0.6 

Up .08 0.0 

090 .12 0.2 

13 
Catalogue of National Cooperative Strong-"otion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger (az) amplitude ( s) 

(0) ( s) (g) 

26 June 1988 Live Oak Reservoir (Continued) 1504:58.4 G.m.t. Structure Array: Southern Calif. Channel 1 - Center Crest 155 .22 0.3 

34.140N, 117.710W Channel 2 - Center Crest Up .10 1 peak Magnitude 4.6 ML Channel 3 - Center Crest 245 .28 0.5 

(Continued) Channel 4 - Left Crest 155 • 21 0.9 

Channel 5 - Left Crest 245 .30 0.6 

Channel 6 - Left Slope 245 .20 0.3 

Channel 7 - Center Slope 155 .16 0.5 

Channel 8 - Center Slope Up .05 0.0 

Channel 9 - Center Slope 245 .19 0.4 

Channel 10 - Center Toe 155 .19 0.4 

Channel 11 - Center Toe Up .07 0.0 

Channel 12 - Center Toe 245 .16 0.1 

San Antonio Dam 34.157N (3) 0.3 

Upland 117.676W 

(ACOE) 

Right Abutment 090 .19 0.5 

Up .17 0.3 

360 .13 0.4 

Crest 090 .26 0.7 

Up .33 1.7 

360 .48 2.2 

Downstream 090 .18 0.7 

Up .17 1.5 

360 . 31 0.7 

Weymouth Filter Plant 34.115N (3) 1.5 

LaVerne 117.779W 

(MWD) 

Ground Site 015 .12 1 peak 

Up .08 0.0 

285 .06 0.0 

Reservoir Roof 015 .13 1.2 

Up .16 2.0 

285 .10 1 peak 

Diemer Filter Plant 33.913N (3) 3.7 

Yorba Linda 117.819W 

(MWD) 

Administration Bldg. 

Basement (1) 

Reservoir Roof (1) 

14 
Earthquake 

11 January 1988-

29 June 1988 

Central Calif. 

Epicenters and 

magnitudes unknown 

2 July 1988 

0026:58.1 G.m.t. 

Southern Calif. 

33.480N, 116.440W 

Magnitude 4.0 ML 

24 May 1987-

3 July 1988 

Alaska 

Epicenters and 

magnitudes unknown 

4 July 1988 

0538:09.3 G.m.t. 

Hawaii 

19.221N, 155.459W 

Magnitude 5.2 ML 

6 July 1988 

1055:05.5 G.m.t. 

Southern Calif. 

34.140N, 117.710W 

Magnitude 3.8 ML 

Catalogue of National Coop~rative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Station name Station Trigger S-minus Direction Maximum 

(owner) location time trigger ( az) amplitude (0) ( s) (Jl) 

Palo Alto 37.40 N (3) (2) VA Hospital, Bldg. 1 122.14 w 

(VA) 

Roof (7th Level) .04 

.03 

.07 

Note: One additional record1 recovered at Palo Alto VA Hospital, Building 1 Roof. 

Anza Array 33.47 N (3) 2.1 (1) Tule Canyon 116.64 w 

(USGS) 

Anza Array 33.578N 27:04.5 (2) (1) Pine Meadow Ranch 116.589W 

(USGS) 

Anza Array 33.568N (3) (2) (1) Rarick Springs 116.510W 

(USGS) 

Talkeetna 62.30 N (3) (2) (1) 

FAA-VOR 150.10 w 

(USGS) 

Note: Two additional records1 recovered at Talkeetna FAA-VOR. 

Hawaii National Park 19.423N 38:21.34 (2) (1) 

Volcano Observatory 155.291W 

(USGS) 

Pahala, Hawaii 19.20 N 38:02.84 0.7 360 .11 

Kau Hospital 155.47 w Up .09 

(USGS) 270 .15 

Waiohinu, Hawaii 19.070N (3) (2) 360 .06 

Kau Baseyard 155.615W Up .06 

(USGS) 270 .16 

Diemer Filter Plant 33.913N (3) 3.2 

Yorba Linda 117.819W 

(MWD) 

Administration Bldg. Basement (1) 

Reservoir Roof (1) 

15 

Duration 

( s) 

0.0 

0.0 

0.0 

0.2 

0.0 

0.6 

0.0 

0.0 

0.2 
Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger (az) amplitude ( s) 

(0) (s) (.gJ 

6 July 1988 San Antonio Dam 34.157N (3) (2) 

1055:05.5 G.m.t. Upland 117.676W 

Southern Calif. (ACOE) 

34.140N, 117.710W 

Magnitude 3.8 ML Right Abutment (1) 

(Continued) 

Crest 090 .09 0.0 

Up .02 0.0 

360 .08 0.0 

Downstream 090 .03 0.0 

Up .02 0.0 

360 .05 0.0 

Live Oak Reservoir 34.137N (3) (2) 

LaVerne 117.753W 

(MWD) 

Abutment 180 .07 0.0 

Up • 03 0.0 

090 .05 0.0 

Structure Array: 

Channel 1 - Center Crest 155 .06 0.0 

Channel 2 - Center Crest Up • 03 0.0 

Channel 3 - Center Crest 245 ~06 0.0 

Channel 4 - Left Crest 155 .09 0.0 

Channel 5 - Left Crest 245 .07 0.0 

Channel 6 - Left Slope 245 .05 0.0 

Channel 7 - Center Slope 155 .05 0.0 

Channel 8 - Center Slope Up • 02 0.0 

Channel 9 - Center Slope 245 .01 0.0 

Channel 10 - Center Toe 155 .05 0.0 

Channel 11 - Center Toe Up .02 0.0 

Channel 12 - Center Toe 245 .03 0.0 

Weymouth Filter Plant 34.115N (3) 1.3 

LaVerne 117.779W 

(MWD) 

Ground Site 015 .05 0.0 

Up .03 0.0 

285 .04 0.0 

Reservoir Roof 015 .06 0.0 

Up .08 0.0 

285 .05 0.0 

16 
Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger ( az) amplitude ( s) 

(0) ( s) (.g_) 

26 July 1988 Bear Valley Station 1 36.573N 26:56.6 0.9 310 .14 1.0 

0326:55.9 G.m.t. CDF Fire Station 121.184W Up .08 0.0 

Central Calif. (USGS) 220 .31 0.4 

36.558N, 121.175W 

Magnitude 4.7 ML Bear Valley Station 7 36.483N 26:58.7 (2) ( 1) 

Pinnacles National 121.184W 

Monument 

(USGS) 

Bear Valley Station 10 36.532N (3) 1.3 310 .14 0.2 

Webb Residence 121.143W Up .08 0.0 

(USGS) 220 .15 0.3 

Note: One additional record1 recovered at Webb Residence. 

Bear Valley Station 14 36.569N 27:01.9 (2) 310 .04 0.0 

Upper Butts Ranch 121.043W Up .03 0.0 

(USGS) 220 .06 0.0 

26 July 1988 Bear Valley Station 1 36.573N 48:36.9 0.8 (1) 

0348:36.0 G.m.t. CDF Fire Station 121.184W 

Central Calif. (USGS) 

36.573N, 121.182W 

Magnitude 3.5 ML Bear Valley Station 10 36.532N 48:37.8 0.9 310 .04 0.0 

Webb Residence 121.143W Up • 03 0.0 

(USGS) 220 .05 0.0 

Bear Valley Station 14 36.569N 48:41.5 (2) (1) 

Upper Butts Ranch 121.043W 

(USGS) 

27 July 1988 Pahala, Hawaii 19.20 N 00:41.24 (2) (1) 

0900 G.m.t. Kau Hospital 155.47 w 

Hawaii (USGS} Epicenter and 

magnitude unknown 

27 July 1988 Bear Valley Station 14 36.569N 57:45.8 (2) (1) 

1657:40.4 G.m.t. Upper Butts Ranch 121.043W 

Central Calif. (USGS} 36.568N, 121.180W 

Magnitude 3.6 ML Bear Valley Station 10 36.532N 57:42.1 1.0 (1) 

Webb Residence 121.143W 

(USGS) 

24 August 1987- Cape Yakataga 60.08 N (3) 10.5 360 .07 0.0 

21 August 1988 Airport 142.43 w Up .02 0.0 

Alaska (USGS) 270 .11 1 peak 

Epicenter and 

magnitude unknown Note: Partial record, film jammed after 27 seconds. 

17 

• 
Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger (az) amplitude ( s) 

(0) ( s) (.gJ 

24 August 1988 Bear Valley Station 1 36.573N 01:47.0 0.6 310 .03 0.0 

1601:46.1 G.m.t. CDF Fire Station 121.184W Up .02 0.0 

Central Calif. (USGS) 220 .06 0.0 

36.553N, 121.180W 

Magnitude 3.0 ~L Bear Valley Station 10 36.532N 01:47.2 1.0 310 .08 0.0 

Webb Residence 121.143W Up .03 0.0 

(USGS) 220 .07 0.0 

Note: One additional record1 recovered at Bear Valley Station 10. 

Bear Valley Station 14 36.569N 01:52.1 (2) (1) 

Upper Butts-Ranch 121.043W 

(USGS) 

30 August 1988 Chalfant Valley Array 37.53 N 28:27.64 1.7 360 .09 0.0 

1228:25.1 G.m.t. Fire Station 118.37 w Up .03 0.0 

Eastern Calif. (USGS) 270 .06 0.0 

37.512N, 118.407W 

Magnitude 3.5 MD 

12 September 1988 Lawndale 33.895N (3) 2.3 (1) 

1324:34.2 G.m.t. 15000 Aviation Blvd. 118.377W 

Southern Calif. (USGS) 

33.870N, 118.460W 

Magnitude 3.9 ML 

14 .September 1988 Chalfant Valley Array 37.53 N (3) (2) (1) 

2121 G.m.t. Fire Station 118.37 w 

Eastern Calif. (USGS) Epicenter and 

magnitude unknown 

22 July 1987- Thompson Pass 61.138N (3) (2) 360 .11 0.5 

21 September 1988 Hiway Maint. Station 145.741W Up .03 0.0 

Southern Alaska (USGS) 270 .06 0.0 

Epicenter and 

magnitude unknown 

3 October 1988 Honokaa, Hawaii 20.080N 06:49.34 5.1 110 .07 0.0 

0406:42.8 G.m.t. Police Station 155.465W Up .06 0.0 

Hawaii (USGS) 020 .06 0.0 

19.777N, 155.329W 

06:38.7 Magnitude 4 4.1 MD Laupahoehoe, Hawaii 19.987N 4.4 360 .05 0.0 

Post Office 155.236W Up .02 0.0 

(USGS) 270 .03 0.0 

Mauna Kea, Hawaii 19.826N 07:26.34 (2) (1) 

Summit Observatory 155.473W 

(USGS) 

Waimea, Hawaii 20.026N 05:59.24 (2) (1) 

Fire Station 155.664W 

(USGS) 

18 
Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner} location time trigger ( az} amplitude ( s} 

(0} ( s} (.gJ 

6 May 1988- Chalfant Valley Array 37.62 N (3) 1.5 (1} 

13 October 1988 South Hammil Valley 118.39 w 

Eastern Calif. (USGS} 

Epicenter and 

magnitude unknown 

15 October 1988 Salton Sea 33.18 N 52:06.1 0.4 ( 1} 

1952 G.m.t. Wildlife Refuge 115.62 w 

Southern Calif. (USGS) 

Epicenter and 

magnitude unknown 

19 October 1988 Chalfant Valley Array 37.402N 08:28.14 3.4 360 .05 0.0 

1608:23.8 G.m.t. Laws, Calif. 118.346W Up .03 0.0 

Eastern Calif. (USGS} 270 .02 0.0 

37.203N, 118.452W 

Magnitude 4.1 ML 

19 October 1988 Salton Sea 33.18 N 47:54.8 0.9 315 .30 0.8 

2247:54.4 G.m.t. Wildlife Refuge 115.62 w Up .28 1.0 

Southern Calif. (USGS} 225 .23 0.7 

33.180N, 115.600W 

Magnitude 3.7 ML [48:42.3] [1.1] (1} 

Imperial Wildlife 33.097N (3) 1.3 (1) Liquefaction Array 115.53 0W 

(USGS} 

19 October 1988 Salton Sea 33.18 N 51:15.35 0.9 315 .07 0.0 

2251 G.m.t. Wildlife Refuge 115.62 w Up .03 0.0 

Southern Calif. (USGS} 225 .07 0.0 

Epicenter and 

magnitude unknown 

19 October 1988 Sal ton Sea 33.18 N 55:47.7 0.9 315 .05 0.0 

2255:47.5 G.m.t. Wildlife Refuge 115.62 w Up .15 1 peak 

Southern Calif. (USGS} 225 .07 0.0 

33.190Nn 115.610W 

One additional record1 Magnitude 3.4 ML Note: recorded at Salton Sea Wildlife Refuge. 

22 October 1988 Chalfant Valley Array 37.53 N 38:22.34 2.9 (1) 

0238:18.6 G.m.t. Fire Station 118.37 w 

Eastern Calif. (USGS} 37.398N, 118.411W 

Magnitude 3.7 MD 

15 December 1986- Bear Valley Station 2 36.636N (3) (2) (1) 31 October 1988 Stone Canyon West 121.234W 

Central Calif. (USGS) Epicenter and 

magnitude unknown 

19 
Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger ( az) amplitude ( s) 

(0) ( s) (_gJ 

1 November 1988 Bear Valley Station 10 36.532N 18:28.3 1.0 310 .04 0.0 

0218:27.2 G.m.t. Webb Residence 121.143W Up .02 0.0 

Central Calif. (USGS) 220 .07 0.0 

36.555N, 121.177W 

Magnitude 2.6 ML 

10 November 1988 Calaveras Array 37.452N (3) 2.1 180 .06 0.0 

0508:03.0 G.m.t. Calaveras Reserv. So. 121.807W Up .03 0.0 

Central Calif. (USGS) 090 .07 0.0 

37.373N, 121.757W 

Magnitude 4.8 ML Milpitas 37. 437N (3) 3.4 (1) 

Rivera Street 121.879W 

(USGS) 

San Jose Interchange 37.340N (3) (2) 322 .17 0.1 

101/280/680 121.851W Up .02 0.0 

(USGS) 232 .09 0.0 

Calaveras Array 37.515N (3) 2.6 360 .02 0.0 

Sunol Regional Park 121.830W Up .02 0.0 

(USGS) 270 .02 0.0 

Sunnyvale, Moffett Fld 37.418N (3) 3.8 090 .03 0.0 

Lockheed Way 122.031W Up .02 0.0 

(USGS) 360 .03 0.0 

Sunnyvale 37.402N 08:08.2 4.0 360 .07 0.0 

Colton Ave. 122.024W Up .03 0.0 

(USGS} 270 .03 0.0 

Fremont, Emerson Ct. 37.535N (3) 3.9 180 .02 0.0 

Mission San Jose 121. 929W Up .02 0.0 

(USGS} 090 .02 0.0 

1 March 1988- Prado Dam 33.890N (3) 3.9 

11 November 1988 Corona 117.641W 

Southern Calif. ( ACOE) 

Epicenter and 

magnitude unknown Downstream 090 .05 0.0 

Up .03 0.0 

360 .05 0.0 

Brea Dam 33.890N (3) (2) Fullerton 117.925W 

(ACOE) 

Crest (1) 

20 
Earthquake 

20 November 1988 

0539:28.6 G.m.t. 

Southern Calif. 

33.510N, 118.070W 

Magnitude 4.5 ML 

1 March 1988-

29 November 1988 

Southern Calif. 

Epicenter and 

magnitude unknown 

11 September 1985-

2 December 1988 

Southern Calif. 

Epicenters and 

magnitudes unknown 

Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Station name 

(owner) 

Station 

location 

(0) 

Trigger S-minus Direction Maximum Duration 

time trigger (az) amplitude (s) 

( s) (J!) 

Newport Beach 33.618N (3) 3.3 

840 Newport Center Or. 117.878W 

{USGS) 

Structure Array Ch. 1- Tower 2, Level 1' Center (1) 

Ch. 2- Tower 2, Level 1' Center (1) Ch. 3- Tower 2, Level 1' Center (1) Ch. 4- Tower 2, Level 2, West Inoperative 

Ch. 5- Tower 2, Level 2, Center (1) Ch. 6- Tower 2, Level 2, Center (1) 

Ch. 7- Tower 2, Level 9, South {1) 

Ch. 8- Tower 2, Level 10, Center Inoperative Ch. 9- Tower 2, Level 10, Center Inoperative Ch. 10- Tower 1, Level 9, East (1) 

Ch. 11- Tower 1, Level 10, Center {1) 

Ch. 12- Tower 1, Level 10, Center (1) 

Carbon Canyon Dam 33.914N (3) (2) 

Brea 117.839W 

{ACOE) 

Crest (1) 

Los Angeles 34.098N (3) (2) 

1526 N. Edgemont St. 118.294W 

{OWNR) 

Roof (8th Level) 090 .42 6.6 

Up • 21 6.1 

360 .27 8.1 

090 .11 1 peak 

Up .05 0.0 

360 .06 0.0 

090 .28 0.3 

Up .09 0.0 

360 .06 0.0 

090 .07 0.0 

Up .04 0.0 

360 • 03 0.0 

090 .38 3.7 

Up .19 0.6 

360 .15 0.3 

Note: Three additional records1 recovered at 1526 N. Edgemont Street, Roof. 

21 
Earthquake 

19 February 1987-

3 December 1988 

Southern Calif. 

Epicenters and 

magnitudes unknown 

3 December 1988 

1138:26.4 G.m.t. 

Southern Calif. 

34.150N, 118.130W 

Magnitude 4.9 ML 

Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Station name Station Trigger S-minus Direction 

(owner) location time trigger ( az) (0) ( s) 

Los Angeles, 2055 34.056N (3) (2) 

Avenue of the Stars 118.413W 

( OWNR) 

Roof (31st level) 320 

Up 

230 

320 

Up 

230 

Maximum Duration 

amplitude ( s) 

(.gJ 

.07 0.0 

.13 1 peak 

.08 0.0 

.06 0.0 

.03 0.0 

.06 0.0 

Note: Eight additional records1 recovered at 2055 Avenue of the Stars, 

31st Level. 

Brea Dam 

Fullerton 

(ACOE) 

Crest 

Left Abutment 

Los Angeles Bulk Mail Facility 

(USGS) 

Garvey Reservoir 

Monterey Park 

(MWD) 

Abutment Building 

Jensen Filter Plant 

Balboa Ave. 

(MWD) 

Administration Bldg. 

Basement 

Generator Building 

Reservoir Roof 

33.890N 

117. 925W 

33.996N 

118.162W 

34.050N 

118.114W 

34.312N 

118.496W 

(3) (2) 

(3) 3.3 

(3) 1.0 

(3) (2) 

130 

Up 

040 

010 

Up 

280 

060 

Up 

330 

.06 

.03 

.05 

(1) 

.09 

.05 

.10 

.10 

.04 

.06 

(1) 

(1) 

(1) 

Note: One each additional record1 recovered at the Administration 

Building Basement, Generator Building and Reservoir Roof. 

22 

0.0 

0.0 

0.0 

0.0 

0.0 

1 peak 

1 peak 

0.0 

0.0 
Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger (az) amplitude ( s) 

(0) ( s) (JI) 

3 December 1988 Long Beach 33.778N (3) (2) 1138:26.4 G.m.t. VA Hospital 118.118W 

Southern Ca 1 if. (VA) 34.150N, 118.130W 

Magnitude 4.9 ML Basement (1) (Continued} 

6th Floor (1) 

11th Floor (1) 

Los Angeles, 2055 34.056N (3) (2) Avenue of the Stars 118.413W 

(OWNR) 

31st level (1) 

Los Angeles 34.118N (3) 2.4 360 .04 0.0 

Griffith Park Observ. 118.299W Up .05 0.0 

(USGS) 270 .08 0.0 

Los Angeles 34.098N (3) (2) 1526 N. Edgemont St. 118.294W 

(OWNR) 

8th Level (1) 

Los Angeles, 2005 34.106N (3) (2) 

N. Highland Blvd. 118.336W 

( OWNR) 

8th Level (1) 

Los Angeles 34.081N (3) 1.4 130 .11 0.8 

4407 Jasper Street 118.188W Up .06 0.0 

(USGS) 040 .12 0.2 

Los Angeles 34.067N (3) 1.3 

1111 Sunset Blvd. 118.248W 

(MWD) 

Basement 348 .08 0.0 

Up .04 0.0 

258 .12 1 peak 

4th Floor 348 .08 0.0 

Up .04 0.0 

258 .09 0.0 

Roof Leve 1 (8th) 348 .04 0.0 

Up .19 0.9 

258 .03 0.0 

23 
Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger ( az) amplitude ( s) 

(0) ( s) (.g.) 

3 December 1988 Los Angeles 34.054N 38:38.7 (2) 

1138:26.4 G.m.t. Wadsworth VA Hospital 118.453W 

Southern Calif. (USGS) 

34.150N, 118.130W 

Magnitude 4.9 ML North ground Site (1) (Continued) 

Los Angeles 34.052N 38:32.9 1.5 

1100 Wilshire Blvd. 118.263W 

(JCG/USGS) 

Basement 3 NE 298 .09 0.0 

Up .05 0.0 

208 .05 0.0 

Basement 4 NW 298 .08 0.0 

Up .03 0.0 

208 .06 0.0 

Basement 3 SE 298 .08 0.0 

Up .04 0.0 

208 .07 0.0 

Structure Array: 

Ch. 1- 12th Floor, North 298 .04 0.0 

Ch. 2- 12th Floor, North 208 .06 0.0 

Ch. 3- 12th Floor, South 208 .07 0.0 

Ch. 4- 13th Floor, North 298 .06 0.0 

Ch. 5- 13th Floor, North 208 .11 1 peak 

Ch. 6- 13th Floor, South 208 .07 0.0 

Ch. 7- 32nd Floor, North 298 .04 0.0 

Ch. 8- 32nd Floor, North 208 .09 0.0 

Ch. 9- 32nd Floor, South 208 .03 0.0 

Ch. 10- Ground Floor, North 298 .06 0.0 

Ch. 11- Ground Floor, North 208 .09 0.0 

Ch. 12- Ground Floor, South 208 .07 0.0 

Lytle Creek 34.26 N 38:54.3 (2) (1) 

Mann Residence 117.50 w 

(USGS) 

Norwalk 33.916N (3) 0.9 

12400 Imperial Highway 118.067W 

(USGS/BECH) 

Basement (1) 

4th Floor ( 1) 

North Ground Site (1) 

South Ground Site (1) 

24 
Earthquake 

3 December 1988 

1138:26.4 G.m.t. 

Southern Calif. 

34.150N, 118.130W 

Magnitude 4.9 ML 

(Continued) 

Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Station name 

(owner) 

Station 

location 

(0) 

Trigger S-minus Direction Maximum Duration 

time trigger (az) amplitude (s) 

Norwalk 33.917N 38:37.4 

12440 Imperial Highway 118.066W 

(USGS/BECH) 

Basement 

North Ground Site 

South Ground Site 

Structure Array 1: 

Ch. 1- 7th Floor, Center 

Ch. 2- 5th Floor, Center 

Ch. 3- 2nd Floor, Center 

Ch. 5- Basement, East 

Ch. 6- 5th Floor, West-Center 

Ch. 7- Basement, Center 

Ch. 8- Basement, Center 

Ch. 9- Basement, Center 

Ch. 10- 30 ft. Downhole, Bldg. Center 

Ch. 11- 30 ft. Downhole, Bldg. Center 

Ch. 12- 30 ft. Downhole, Bldg. Center 

Structure Array 2: 

Ch. 13- 7th Floor, East 

Ch. 14- 5th Floor, East 

Ch. 15- 2nd Floor, East 

Ch. 16- 1st Floor, East 

Ch. 17- 7th Floor, Center 

Ch. 18- 5th Floor, Center 

Ch. 19- 2nd Floor, Center 

Ch. 20- 1st Floor, Center 

Ch. 21- 7th Floor, West 

Ch. 22- 5th Floor, West 

Ch. 23- 2nd Floor, West 

Ch. 24- 1st Floor, West 

San Antonio Dam 

Upland 

(ACOE) 

Crest 

Downstream 

Right Abutment 

34.157N 

117.676W 

(3) 

( s) (.g) 

(2) 

(2) 

090 

Up 

360 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

(I) 

.06 

.05 

.10 

(I) 

(I) 

0.0 

0.0 

2 peaks 

Note: One additional record1 recovered at San Antonio Dam, Right Abutment. 

25 
Catalogue of National Cooperative Strong-"otion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger (az) amplitude ( s) 

(0) ( s) (.gJ 

3 December 1988 Weymouth Filter Plant 34.115N (3) (2) 1138:26.4 G.m.t. LaVerne 117.779W 

Southern Calif. (MWD) 

34.150N, 118.130W 

Magnitude 4.9 ML 

(Continued) 

Tank Top (1) 

Ground Site (1) 

Whittier 33.976N (3) 0.2 

7215 Bright Avenue 118.036W 

(USGS/CLA) 

Basement 180 .08 0.0 

Up .04 0.0 

090 .06 0.0 

5th Floor 180 .10 1 peak 

Up .05 0.0 

090 .06 0.0 

lOth Floor 180 .06 0.0 

Up .06 0.0 

090 .08 0.0 

Whittier Narrows Dam (3) (2) Pica Rivera 

(ACOE) 

Crest 34.020N 033 .07 0.0 

118.053W Up .03 0.0 

303 .06 0.0 

Upstream (Baseyard) 34.031N 152 .07 0.0 

118.054W Up .03 0.0 

062 .06 0.0 

Sepulveda Canyon 34.097N (3) 4.0 166 .02 0.0 

Control Facility 118.478W Up .02 0.0 

(MWD) 076 .08 0.0 

Sepulveda Dam 34.167N (3) 4.1 

San Fernando Valley 118.469W 

(ACOE) 

Crest (1) 

Downstream (1) 

Sepulveda VA Hospital 34.249N (3) 5.2 360 .07 0.0 

Building 1140 118.475W Up .04 0.0 

(VA) 270 .04 0.0 

26 
Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Earthquake Station name Station Trigger S-minus Direction Maximum Duration 

(owner) location time trigger ( az) amplitude ( s) 

(0) ( s) ~) 

14 December 1988 McGee Creek 37.550N . 4 16.19.8 (2) (1) 

0016:17.3 G.m.t. Crowley Lake 118.811W 

Eastern Calif. {USGS) {Triaxial) 

37.589N, 118.847W 

16:19.8 Magnitude 4 2.9 MD McGee Creek 37.550N (2) Crowley Lake 118.811W 

(USGS) (Multi-channel) 

166 m Downhole (1) 

35 m Downhole (1) 

1 m Downhole (1) 

Surface ( 1) 

16 December 1988 San Bernardino Array 34.183N 53:23.7 (2) (1) 

0553:04.9 G.m.t. 5931 N. F Street 117.295W 

Southern Calif. (USGS) 

33.980N, 116.680W 

Magnitude 4.8 ML Forest Falls 34.088N 53:13.6 (2) (1) 

Post Office 116. 919W 

(USGS) 

Morongo Va 11 ey 34.048N (3) 2.1 135 .05 0.0 

Fire Station 116.577W Up .07 0.0 

(USGS) 045 .11 1 peak 

Cabazon 33.918N 53:08.0 1.2 270 .06 0.0 

Post Office 116.782W Up .11 0.2 

(USGS) 180 .09 0.0 

Whitewater Canyon 33.989N (3) (2) 270 .15 1.0 

Trout Fdrm 116.655W Up .14 1.7 

(USGS) 180 .12 0.1 

Anza Array, Garner 33.616N 53:12.3 5.1 (1) 

Valley Fire Station 116.627W 

(USGS) 

Anza Array 33.578N 53:13.1 5.5 (1) 

Pine Meadow Ranch 116.589W 

(USGS) 

4 October 1987- Valyermo 34.44 N (3) 5.1 (1) 

21 December 1988 Forest Station 117.85 w 

Southern Calif. (USGS) Epicenter and 

magnitude unknown Note: Probably southern California event of 3 December 1988. 

27 
Earthquake 

29 April 1988-

21 December 1988 

Southern Calif. 

Epicenter and 

magnitude unknown 

22 December 1988 

0203:59.5 G.m.t. 

Southern Calif. 

33.190N, 115.590W 

Magnitude 3.1 ML 

22 December 1988 

0206:55.4 G.m.t. 

Southern Calif. 

32.988N, 115.687W 

Magnitude unknown 

29 December 1988 

0333:24.9 G.m.t. 

Southern Calif. 

33.180N, 115.590W 

Magnitude 3.0 ML 

Catalogue of National Cooperative Strong-Motion Network 

accelerograph records recovered during 1988--Continued 

Station name 

(owner) 

Littlerock 

Post Office 

(USGS) 

Station 

location 

(0) 

34.52 N 

117.99 w 

Trigger S-minus Direction Maximum Duration 

time trigger (az) amplitude (s) 

(s) (g.) 

(3) 5.3 (1) 

Note: Probably southern California event of 3 December 1988. 

Salton Sea 

Wildlife Refuge (USGS) . 

Salton Sea 

Wildlife Refuge 

(USGS) 

Salton Sea 

Wildlife Refuge (USGS) 

33.18 N 04:00.3 

115.62 w 

33.18 N 06:58.0 

115.62 w 

1.1 

1.2 

33.18 N 33:25.7 1.0 

115.62 w 

(1) 

(1) 

(1) 

Note: One additional record3 recovered at Salton Sea Wildlife Refuge. 

1 Less than 0.05 ~ at ground-level or less than 0.10 ~at non-ground-level stations. 

2 Questionable or indeterminable. 

3 World Wide Voice Broadcast (WWVB) time code illegible, or instrument not equipped with 

a radio receiver; correlation of accelerogram with event may be questionable or identity of event unknown. 

4 Internal clock time; accuracy is variable. 

28 


SELECTED SERIES OF U.S. GEOLOGICAL SURVEY PUBLICATIONS 

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Professional Papers are mainly comprehensive scientific reports of 

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