U.S. GEOLOGICAL SURVEY CIRCULAR 1114 

Catalogue of U.S. Geological Survey 

Strong-Motion Records, 1992 
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Catalogue of U.S. Geological Survey 

Strong-Motion Records, 1992 

Compiled by JOSEPHINE C. SWITZER and RONALD L. PORCELLA 

U.S. GEOLOGICAL SURVEY CIRCULAR 1114 
U.S. DEPARTMENT OF THE INTERIOR 

BRUCE BABBITT, Secretary 

U.S. GEOLOGICAL SURVEY 

Gordon P. Eaton, Director 

For sale by 

U.S. Geological Survey, Map Distribution 

Box 25286, MS 306, Federal Center 

Denver, CO 80225 

Any use of trade, product, or finn names in this publication is for descriptive purposes only and does 

not imply endorsement by the U.S. Government. 

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 Earthquake Hazards Reduction 

Program. Currently, the National Strong-Motion Program (NSMP) 

operates a cooperative network containing nearly 1000 accelerographs in 39 

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 Department of Veterans Affairs, 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 NSMP 

stations that had been published in that format since 1974. This report 

includes all accelerograms recovered during 1992. Unless otherwise noted, 

event data are from the "Preliminary Determination of Epicenters," 

published weekly by the U.S. Geological Survey. 

III 

CONTENTS 

Preface III 

Introduction 1 

TABLE 

1. U.S. Geological Survey accelerograph records recovered during 1992 2 

Catalogue of U.S. Geological Survey 

Strong-Motion Records, 1992 

Compiled by Josephine C. Switzer and Ronald L. Porcella 

INTRODUCTION 

During January to December 1992 nearly 720 accelerograph records were recovered 

at stations operated by the U.S. Geological Survey's National Strong-Motion Program; 

approximately 50 percent of these records are from the main shocks of the June 28 

Landers and Big Bear earthquakes in southern California. Nine earthquakes of M=S.O or 

greater occurred in California during 1992, including Landers, Big Bear, and the Ms=7.1 

Petrolia earthquake in northern California on April 25 (see table 1). 

The Joshua Tree earthquake (ML=6.1) occurred in southern California on April23, 

near the community of Desert Hot Springs; 47 records were recovered from this event, 

including a maximum acceleration of 0.52 gat Fun Valley (epicentral distance= 6 km). 

Additionally, five stations within a 30-km epicentral distance recorded peak 

accelerations from 0.12 to 0.41 g. 

Within a 24-hour period on April 25-26, three earthquakes with magnitudes (Ms) 

of 7.1, 6.6, and 6.6 occurred near Eureka in northern California. Each earthquake was 

recorded at eight USGS ground stations; peak accelerations were greater than 0.10 g at 

all recording stations. A maximum horizontal acceleration of 0.48 g was recorded at 

Centerville during the first event (epicentral distance = 22 km). Maximum ground 

accelerations recorded at USGS stations during the second and third events, 

respectively, were 0.44 gat Centerville Beach and 0.35 gat Ferndale. 

USGS strong-motion instrumentation at 175 stations was triggered by two large 

earthquakes that occurred in the southern California county of San Bernardino on June 

28: the M=7.4 Landers earthquake occurred at 0458 PDT, approximately 10 km north of 

Yucca Valley; the M=6.5 Big Bear earthquake occurred at 0804 PDT, approximately 

10 km southeast of Big Bear Lake. Maximum recorded accelerations were 0.29 g at Indio 

during the Landers event, and 0.30 g at Forest Falls during the Big Bear event. Strong 

shaking during the Landers earthquake lasted 20 seconds or longer at several recording 

stations. USGS instrumentation triggered by the Landers event includes multiple- (9-24) 

channel systems located at 10 structures (one dam, one bridge, and eight large buildings) 

in the southern California region (see table 1). 

Additional strong-motion records were recovered at USGS accelerograph stations 

located in Hawaii and Nevada during this report period. 

Manuscript approved for publication, September 27,1994. 

1 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992 

[Station owners: ACOE, U.S. Army Corps of Engineers; BECH, Bechtel Power Corporation; MWD, Metropolitan WatE'r District of 

Southern Calif.; OWNR, Owner of building; TEMP, temporary station; USGS, U.S. Geological Survey; VA, U.S. Dept. o' Veterans 

Affairs. Instrument trigger time in seconds after the minute or the following minute listed in earthquake column. S-minu" trigger 

denotes .£-wave-arrival-minus-trigger-time (S.-t) or .S.-wave-minus-.f-wave-arrival time (.S.-.f, in brackets) interval. Dir~tion is of 

case acceleration for upward trace deflection on accelerogram; horizontal directions are listed as azimuth, and vertica 1 direction as 

"up" or "down." Maximum amplitude is peak acceleration recorded at ground level on one vertical and two orthogonal horizontal 

components unless otherwise noted. Duration is interval between first and last peaks of acceleration greater than 0.10 g. Numbers 

in parentheses refer to footnotes at end of table.] 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximwn Duration 

(Owner) (Lat. oN time triw (az) ~tud~ (s) 

Long. 0 W) 

23 March 1990- Irvine 33.656 (3) 0.2 

31 January 1991 19900 MacArthur Blvd. 117.859 

Southern Calif. (USGS) 

Epicenter and 

magnitude unknown Basement 060 .05 

Up .05 

330 .03 

Structure Array 

Ch. 1 -Roof NE comer 060 .07 

Ch. 2- Roof SW comer 060 .03 

Ch. 3 - 7th Floor NE 060 Inoperat~ve 

Ch. 4 - 7th Floor SW 060 Inoperat~ve 

Ch. 5 - 1st Floor South side 060 .08 

Ch. 6 - Roof, SW comer 330 .03 

Ch. 7-7th Floor, SW 330 Inoperat~ve 

Ch. 8 - 1st Floor West side 330 .04 

Ch. 9 - 1st Floor South side 330 .07 

Ch. 10 - 7th Floor SW comer Down Inoperat~ve 

Ch. 11 - 1st Floor West side Down Inoperat~ve 

Ch. 12 - 1st Floor South side Down .03 

25 June 1990- Cape Girardeau 37.31 (3) (2) (1) 

27 February 1991 (USGS) 89.52 

Missouri 

Epicenter and 

magnitude unknown 

16 March 1991 Bear Valley Array #10 36.532 29:20.2 0.9 310 .04 

xx29:20.1 G.m. t. Webb Residence 121.143 Up .03 

Central Calif. (USGS) 220 .06 

Epicenter and 

magnitude unknown 

24 March 1991 Hollister Airport 36.888 42:19.1 0.9 (1) 

0342:08.8 G.m.t. Differential Array 121.413 

Central Calif. (USGS) 

39.963N, 121.738W 

Magnitude 4.5 ML 

2 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time tri~er (az) am~ tude (s) 

Long. 0 W} 

13 April1991 McGee Creek 37.550 (4) (2) (1) 

2051:30.5 G.m.t. Crowley Lake 118.811 

Eastern Calif. (USGS) (Triaxial) 

37.563N, 118.888W 

Magnitude 3.3 ML McGee Creek 37.550 (4) (2) 

Crowley Lake 118.811 

(USGS) (Multichannel) 

166m Downhole (1) 

35m Downhole (1) 

1m Downhole (1) 

Surface (1) 

5 January 1990- Costa Mesa 33.658 (3) 1.2 360 .09 

16 April 1991 2300 Placentia 117.931 Up .07 

Southern Calif. (USGS) 270 .10 

Epicenter and 

magnitude unknown 

26 April1991 Bear Valley Array #10 36.352 xx:09.5 0.7 (1) 

01xxG.m.t. Webb Residence 121.143 

Central Calif. (USGS) 

Epicenter and 

magnitude unknown 

21 January 1992 Waimea, Hawaii 20.026 (4) (2) (1) 

1148:01.6 G.m.t. Fire Station 155.664 

Hawaii (USGS) 

19.842N, 155.616W 

Magnitude 4.0 ML Mauna Kea, Hawaii 19.752 (4) (2) (1) 

State Park 155.530 

(USGS) 

8March 1992 Eel River Valley Array 40.498 43:10.8 3.8 (1) 

0343:04.4 G.m.t. Bunker Hill 124.294 

Northern Calif. (USGS) 

40.228N, 124.290W 

Magnitude 5.3 ML Eel River Valley Array 40.563 (3) (2) (1) 

Centerville Beach 124.348 

(USGS) 

Eel River Valley Array 40.576 (4) 6.3 360 .09 

Ferndale Fire Station 124.262 Up .03 

(USGS) 270 .07 

Eel River Valley Array 40.599 (4) (2) (1) 

Fortuna Fire Station 124.154 

(USGS) 

3 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continuetf 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time triMer (az) am~ tude (s) 

Long. 0 W} 

8March 1992 Eel River Valley Array 40.699 (4) (2) (1) 

0343:04.4 G.m.t. College of the Redwoods 124.200 

(continued) (USGS) 

Eel River Valley Array 40.735 (3) (2) (1) 

South Bay Union School 124.207 

(USGS) 

6 April1992 University of Nevada, Reno 39.539 (4) (2) 

0401:29.0 G.m.t. (USGS) 119.813 

Nevada 

39.670N, 119.820W Basement (1) 

Magnitude 4.1 ML 

9 April1992 Bear Valley Station 10 36.532 58:40.2 0.8 310 .05 

1558G.m.t. Webb Residence 121.143 Up .02 

Central Calif. (USGS) 220 .04 

Epicenter and 

magnitude unknown 

10 April1992 Waimea, Hawaii 20.026 (4) (2) {1) 

0945 G.m.t. Fire Station 155.664 

Hawaii (USGS) 

Epicenter and 

magnitude unknown 

25 February 1992- Fun Valley 33.925 (3) (2) (1) 

23 April 1992 (0450) Reservoir 361 116.389 

Southern Calif. (USGS) 

Epicenter and 

magnitude unknown Whitewater Canyon 33.989 (3) 4.2 (1) 

Trout Farm 116.655 

(USGS) 

9 April 1992- North Palm Springs 33.924 (3) (2) (1) 

23 April1992 (0450) Fire Station 116.543 

Southern Calif. (USGS) 

Epicenter and 

magnitude unknown 

23 April1992 Fun Valley 33.925 (3) 0.5 135 .53 4.6 

0450:23.2 G.m.t. Reservoir 361 116.389 Up .37 5.8 

Southern Calif. (USGS) 045 .so 5.6 

33.961N, 116.318W 

Magnitude 6.1 ML Thousand Palms 33.82 (3) 3.5 135 .19 6.9 

(Joshua Tree Post Office 116.40 Up .24 6.1 

earthquake) (USGS) 045 .22 5.1 

Note: Three additional records1 recovered at Thousand Palms Post Office. 

4 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time triMer (az) ~tude (s) 

Long. 0 W} 

23 April1992 North Palm Springs 33.924 (3) 2.2 180 .15 3.7 

(Joshua Tree Fire Station 116.543 Up .10 1 peak 

earthquake, (USGS) 090 .17 3.8 

continued) 

Indio 33.747 50:28.8 4.1 180 .20 4.1 

Jackson Road 116.214 Up .11 4.6 

(USGS) 090 .41 5.3 

Morongo Valley 34.048 50:27.8 3.8 135 .07 

Fire Station 116.577 Up .10 1 peak 

(USGS) 045 .12 0.3 

Whitewater Canyon 33.989 (3) 0.4 270 .19 4.6 

Trout Farm 116.655 Up .17 8.2 

(USGS) 180 .22 3.6 

Note: Two additional records1 recovered at Whitewater CanyonTrout Farm. 

Anza Array 33.607 (3) 5.1 360 .09 

Pinyon Flat Observatory 116.453 Up .05 

(USGS) 270 .06 

Anza Array 33.707 (3) (2) (1) 

Keenwild Forest Station 116.716 

(USGS) 

Anza Array 33.676 (3) 5.4 135 .05 

Herkey Creek Park 116.680 Up .05 

(USGS) 045 .07 

Anza Array 33.568 50:31.3 (2) 360 .08 

Rarick Springs 116.510 Up .05 

(USGS) 270 .07 

Anza Array 33.616 50:31.2 6.1 360 .05 

Garner Valley Fire Station 116.627 Up .11 1 peak 

(USGS) 270 .05 

Anza Array 33.578 50:31.4 (2) 360 .05 

Pine Meadow Ranch 116.589 Up .08 

(USGS) 270 .06 

Mecca Fire Station 33.572 (3) 5.5 270 .09· 

(USGS) 116.076 Up .05 

180 .13 1 peak 

Anza Array 33.738 (3) 6.5 315 .06 

Cranston Forest Station 116.838 Up .06 

(USGS) 225 .07 

5 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continue~-1 

Earthquake Station Name Coordinates Trigger ~minus Direction Maximum Duration 

(Owner) (Lat. oN time trimer (az) ~tude (s) 

Long. 0 W} 

23 April1992 Anza Array 33.60 50:33.5 6.2 (1) 

(Joshua Tree Tripp Flats 116.74 

earthquake, (USGS) 

continued) 

Forest Falls Post Office 34.088 50:37.4 2.8 (1) 

(USGS) 116.919 

Anza Array 33.821 (3) 4.8 (1) 

San Jacinto Tunnel 116.967 

(USGS) 

Anza Array, Tule Canyon 33.47 50:34.1 7.8 (1) 

(USGS) 116.64 

Anza Array 33.512 50:35.8 6.7 360 .05 

Cahuilla Valley 116.798 Up .03 

(USGS) 270 .04 

Hinds Pumping Plant 33.71 (3) (2) (1) 

(MWD) 115.63 

Mentone Fire Station 34.067 50:38.5 6.8 (1) 

(USGS) 117.117 

Skinner Dam 33.58 (3) 6.2 

(MWD) 117.07 

Left Abutment 178 .05 

Up .02 

088 .04 

Lorna Linda VA Hospital 34.050 (3) 

(VA) 117.249 

North Ground Site 8.5 (1) 

South Ground Site 5.2 (1) 

Building 1 Structure Array 

Ch. 1- Ground Floor, Center Down .02 

Ch. 2- Ground Floor, Center 180 .03 

Ch. 3- Ground Floor, Center 270 .03 

Ch. 4- 4th Floor, Center 270 .08 

Ch. 5- Ground Floor, North 270 .03 

Ch. 6-4th Floor, Center 180 .05 

Ch. 7-4th Floor, North 270 .09 

Ch. 8- Ground Floor, South 180 .02 

Ch. 9- 4th Floor, South 270 .09 

6 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continuecl. 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time mmer (az) am~ tude (s) 

Long. 0 W} 

23 April1992 San Bernardino 34.106 (3) (2) 

(Joshua Tree County Government Center 117.287 

earthquake, (USGS) 

continued) 

Structure Array 

Ch. 1- 2nd Floor Level, NW 360 .03 

Ch. 2- 2nd Floor Level, NE 090 .03 

Ch. 3- 2nd Floor Level, NE 360 .03 

Ch. 4- 2nd Floor Level, SW 090 .03 

Ch. 5-4th Floor Level, SW 090 .05 

Ch. 6- 4th Floor Level, NW 360 .03 

Ch. 7- 6th Floor Level, (Roof) NE 090 .06 

Ch. 8- 6th Floor Level, (Roof) NW 360 .09 

Ch. 9- 6th Floor Level, (Roof) SW 090 .06 

Ch. 10- 6th Floor Level, (Roof) NE 360 .06 

Ch. 11- 4th Floor Level, NE 090 .03 

Ch. 12- 4th Floor Level, NE 360 .04 

Basement, SW (1) 

Mills Filter Plant 33.920 (3) (2) (1) 

(MWD) 117.320 

San Bernardino Array, San 34.086 (3) 11.0 (1) 

Bernardino Valley College 117.309 

(USGS) 

San Bernardino Array 34.183 50:54.5 (2) (1) 

North "F" Street 117.295 

(USGS) 

Riverside 33.968 (3) (2) 

Santa Ana River Bridge 117.447 

(MWD) 

North Abutment (1) 

Structure Array 

Ch. 1- North Abutment 345 .03 

Ch. 2- North Abutment Down .02 

Ch. 3- North Abutment 075 .03 

Ch. 4- Mid Span, Pier 7-8 345 .12 1 peak 

Ch. 5- Mid Span, Pier 7-8 Down .11 0.3 

Ch. 6- Mid Span, Pier 7-8 075 .08 

Ch. 7- Pier 8, Below Isolator Bearing 345 .08 

Ch. 8- Pier 8, Below Isolator Bearing Down .02 

Ch. 9- Pier 8, Below Isolator Bearing 075 .04 

Ch. 10- Pier 8, Above Isolator Bearing 345 .13 1 peak 

Ch. 11- Pier 8, Above Isolator Bearing Down .03 

Ch. 12- Pier 8, Above Isolator Bearing 075 .08 

7 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continuec 

Earthquake Station Name Coordinates Trigger S.minus Direction Maximum Duration 

(Owner) (Lat. oN tiire triffler (az) am~ tude (s) 

Long. 0 W) 

23 April 1992 Lake Mathews 33.852 (3) (2) 

(Joshua Tree (MWD) 117.451 

earthquake, 

continued) Dike Toe (1) 

Prado Dam 33.890 (3) (2) 

Corona 117.641 

(ACOE) 

Crest (1) 

Downstream (1) 

San Antonio Dam 34.157 (3) (2) 

Upland 117.676 

(ACOE) 

Crest (1) 

Wrightwood Post Office 34.360 (3) (2) (1) 

(USGS) 117.629 

Carbon Canyon Dam 33.914 (3) (2) 

Brea 117.839 

(ACOE) 

Crest (1) 

Brea Dam 33.890 (3) (2) 

Fullerton 117.925 

(ACOE) 

Crest (1) 

Left Abutment (1) 

Mill Creek Ranger Station 34.390 (3) 5.5 (1) 

(USGS) 118.080 

Los Angeles 34.063 (3) (2) (1) 

600 S. Commonwealth 118.284 

(OWNR) 19th Floor 

Anza Array 33.38 (3) (2) (1) 

Chihuahua Valley 116.68 

(USGS) 

Lorna Linda Medical Center 34.050 (3) 9.8 (1) 

(USGS) 117.263 

8 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximum Duration 

(Owner) (Lat. oN time triMer (az) am~ tude (s) 

Long. 0 W} 

23 April1992 Anza Array 33.348 (3) 7.5 360 .11 0.5 

(Joshua Tree Rancho de Anza 116.400 Up .05 

earthquake, (USGS) 270 .09 

continued) 

Borrego Springs 33.21 50:51.1 (2) (1) 

Scripps Clinic 116.33 

(USGS) 

Los Angeles 34.053 (3) 16.8 (1) 

333 S. Hope Street 118.252 

(OWNR) 55th floor 

23 April, 0450 G.m.t.- Fun Valley 33.925 (3) (2) 135 .08 

24 April1992 Reservoir 361 116.389 Up .04 

Southern Calif. (USGS) 045 .07 

Epicenters and 

magnitudes unknown (3) 1.1 135 .13 1 peak 

Up .05 

045 .12 0.1 

(3) 1.4 135 .04 

Up .02 

045 .05 

(3) 1.4 135 .04 

Up .02 

045 .05 

Note: Five additional records1 recovered at Fun Valley Reservoir 361. 

25 April1992 Eel River Valley Array 40.498 06:10.4 3.0 360 .21 4.0 

1806:04.2 G.m.t. Bunker Hill 124.294 Up .08 

Northern Calif. (USGS) 270 .18 4.1 

40.368N, 124.316W 

Magnitude 7.1 Ms Eel River Valley Array 40.563 06:12.0 4.4 360 .48 11.3 

(Petrolia #1 Centerville Beach 124.348 Up .13 3.7 

earthquake) (USGS) 270 .32 10.8 

Eel River Valley Array 40.576 (4,) 2.9 360 .30 10.7 

Ferndale Fire Station 124.262 Up .07 

(USGS) 270 .37 11.5 

Eel River Valley Array 40.599 (4) 4.7 360 .28 12.3 

Fortuna Fire Station 124.154 Up .08 

(USGS) 270 .32 7.3 

Eel River Valley Array 40.644 (4) 5.6 360 .26 6.9 

Loleta Fire Station 124.219 Up .13 5.8 

(USGS) 270 .26 9.9 

9 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continue:" 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time triMer (az) am~ tude (s) 

Long. 0 W} 

25 April1992 Eel River Valley Array 40.699 {4) 6.6 360 .17 8.0 

(Petrolia #1 College of the Redwoods 124.200 Up .08 

earthquake, (USGS) 270 .15 8.2 

continued) 

Eel River Valley Array 40.735 {3) 6.1 360 .20 6.8 

South Bay Union School 124.207 Up .06 

(USGS) 270 .16 9.8 

Eel River Valley Array 40.78 06:18.0 7.3 060 .15 1.1 

Butler Valley Station 2 123.88 Up .07 

(USGS) 330 .15 4.2 

25 April 1992 Eel River Valley Array 40.576 {4) {2) {1) 

1808G.m.t. Ferndale Fire Station 124.262 

Northern Calif. (USGS) 

. Epicenter and 

magnitude unknown Eel River Valley Array 40.599 {4) 5.9 360 .07 

Fortuna Fire Station 124.154 Up .03 

(USGS) 270 .08 

Eel River Valley Array 40.699 {4) {2) {1) 

College of the Redwoods 124.200 

(USGS) 

Eel River Valley Array 40.78 08:35.3 {2) {1) 

Butler Valley Station 2 123.88 

(USGS) 

25 April1992 Eel River Valley Array 40.576 {4) {2) {1) 

1812G.m.t. Ferndale Fire Station 124.262 

Northern Calif. (USGS) 

Epicenter and 

magnitude unknown Eel River Valley Array 40.599 {4) {2) {1) 

Fortuna Fire Station 124.154 

(USGS) 

25 April1992 Eel River Valley Array 40.498 13:31.7 {2) {1) 

1813G.m.t. Bunker Hill 124.294 

Northern Calif. (USGS) 

Epicenter and 

magnitude unknown Eel River Valley Array 40.563 13:28.9 3.8 {1) 

Centerville Beach 124.348 

(USGS) 

25 April1992 Eel River Valley Array 40.563 15:09.2 3.3 {1) 

1815G.m.t. Centerville Beach 124.348 

Northern Calif. (USGS) 

Epicenter and 

magnitude unknown Eel River Valley Array 40.644 {4) 4.8 (1) 

Loleta Fire Station 124.219 

(USGS) 

10 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S.minus Direction Maximum Duration 

(Owner) ~t. N time trimer (az) am~ tude (s) 

ng. oW) 

25 April1992 Eel River Valley Array 40.563 33:08.4 5.8 (1) 

1833G.m.t. Centerville Beach 124.348 

Northern Calif. (USGS) 

Epicenter and 

magnitude unknown 

26 April 1992 Eel River Valley Array 40.498 (3) 3.4 360 .12 1.9 

0741:39.7 G.m.t. Bunker Hill 124.294 Up .06 

Northern Calif. (USGS) 270 .17 4.7 

40.415N, 124.603W 

Magnitude 6.6 Ms Eel River Valley Array 40.563 41:46.4 4.9 360 .44 6.2 

(Petrolia #2 Centerville Beach 124.348 Up .09 

earthquake) (USGS) 270 .35 7.9 

Eel River Valley Array 40.576 (4) 5.8 360 .18 5.6 

Ferndale Fire Station 124.262 Up .07 

(USGS) 270 .26 5.6 

Eel River Valley Array 40.599 (4) 7.7 360 .28 9.2 

Fortuna Fire Station 124.154 Up .07 

(USGS) 270 .40 7.3 

Eel River Valley Array 40.644 (4) 6.5 360 .14 8.0 

Loleta Fire Station 124.219 Up .15 0.2 

(USGS) 270 .29 8.8 

Eel River Valley Array 40.699 (4) 7.1 360 .10 1 peak 

College of the Redwoods 124.200 Up .05 

(USGS) 270 .18 2.0 

Eel River Valley Array 40.735 (3) 6.5 360 .09 

South Bay Union School 124.207 Up .02 

(USGS) 270 .15 3.2 

Eel River Valley Array 40.78 42:07.3 (2) 060 .09 

Butler Valley Station 2 123.88 Up .03 

(USGS) 330 .08 

26 April1992 Eel River Valley Array 40.563 45:53.6 5.0 (1) 

0745G.m.t. Centerville Beach 124.348 

Northern Calif. (USGS) 

Epicenter and 

magnitude unknown 

26 April 1992 Eel River Valley Array 40.563 52:12.7 (2) (1) 

0752G.m.t. Centerville Beach 124.348 

Northern Calif. (USGS) 

Epicenter and 

magnitude unknown 

11 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time trimer (az) am~ tude (s) 

Long. 0 W) 

26 April1992 Eel River Valley Array 40.498 {3) 4.5 360 .13 1.1 

1118:25.7 G.m. t. Bunker Hill 124.294 Up .05 

Northern Calif. (USGS) 270 .25 2.4 

40.378N, 124.575W 

Magnitude 6.6 Ms Eel River Valley Array 40.563 18:33.4 2.2 360 .22 5.2 

(Petrolia #3 Centerville Beach 124.348 Up .12 5.0 

earthquake) (USGS) 270 .24 3.8 

Eel River Valley Array 40.576 {4) 3.2 360 .17 2.5 

Ferndale Fire Station 124.262 Up .08 

(USGS) 270 .35 3.2 

Eel River Valley Array 40.599 {4) 7.2 360 .22 3.6 

Fortuna Fire Station 124.154 Up .07 

(USGS) 270 .25 3.1 

Eel River Valley Array 40.644 {4) 6.8 360 .08 

Loleta Fire Station 124.219 Up .11 0.4 

(USGS) 270 .14 0.3 

Eel River Valley Array 40.699 {4) 6.6 360 .09 

College of the Redwoods 124.200 Up .03 

(USGS) 270 .16 0.3 

Eel River Valley Array 40.735 {3) 6.9 360 .12 1 peak 

South Bay Union School 124.207 Up .03 

(USGS) 270 .12 1.0 

Eel River Valley Array 40.78 18:49.2 {2) 060 .08 

Butler Valley Station 2 123.88 Up .03 

(USGS) 330 .07 

Black Butte Dam 39.82 {4) {2) 

(ACOE) 122.34 

Right Abutment {1) 

Downstream {1) 

Upper Tower (1) 

Lower Tower {1) 

Crest {1) 

6 February 1992- Eel River Valley Array 40.874 {3) {2) 360 .06 

27 April1992 Humboldt State University 124.075 Up .02 

Northern Calif. (USGS) 270 .05 

Epicenter and 

magnitude unknown 

12 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time triw (az) am~ tude (s) 

Long. 0 W} 

4May1992 Indio 33.747 19:57.4 1.5 180 .05 

1619:49.7 G.m.t. Jackson Road 116.214 Up .04 

Southern Calif. (USGS) 090 .08 

33.942N, 116.304W 

Magnitude 4.9 MD 

25 April 1992- Anza Array 33.676 {3) 5.5 {1) 

18May 1992 lierkeyCreekPark 116.680 

Southern Calif. (USGS) 

Epicenter and 

magnitude unknown 

18May 1992 Anza Array 33.676 44:31.1 {2) {1) 

1544:17.9 G.m.t. lierkey Creek Park 116.680 

Southern Calif. (USGS) 

33.951N, 116.338W 

Magnitude 4.9 MD Indio 33.747 44:23.7 3.7 180 .08 

Jackson Road 116.214 Up .02 

(USGS) 090 .07 

24 April1992- Fun Valley 33.925 {3) {2) 135 .07 

4June1992 Reservoir 361 116.389 Up .02 

Southern Calif. (USGS) 045 .03 

Epicenters and 

magnitudes unknown {3) 1.6 135 .11 

Up .07 

045 .12 

{3) 1.4 135 .12 1 peak 

Up .07 

045 .15 0.2 

{3) {2) 135 .23 0.3 

Up .10 0.7 

045 .17 1.0 

Note: Thirteen additional records1 recovered at Fun Valley Reservoir 361. 

Morongo Valley Fire Station 34.048 {3) 3.9 (1) 

(USGS) 116.577 

North Palm Springs 33.924 {3) 0.4 {1) 

Fire Station 116.543 

(USGS) 

Note: Three additional records1 recovered at North Palm Springs Fire Station. 

Thousand Palms 33.82 (3) 2.6 135 .10 0.1 

Post Office 116.40 Up .04 

(USGS) 045 .10 1 peak 

13 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time trimer (az) am~ tude (s) 

Long. 0 W} 

24 April 1992- (3) 2.6 135 .13 0.2 

4June1992 Up .09 

(continued) 045 .11 1 peak 

Note: Four additional records1 recovered at Thousand Palms Post Office. 

Whitewater Canyon 33.989 (3) (2) (1) 

Trout Farm 116.655 

(USGS) 

Note: Four additional records1 recovered at Whitewater Canyon Trout Farm. 

5June1992 Eel River Valley Array 40.498 46:49.8 4.3 (1) 

2146:41.9 G.m.t. Bunker Hill 124.294 

Northern Calif. (USGS) 

40.273N, 124.552W 

Magnitude 4.8 ML Eel River Valley Array 40.563 46:50.3 5.6 360 .38 0.3 

Centerville Beach 124.348 Up .04 

(USGS) 270 .11 1 peak 

Eel River Valley Array 40.576 46:50.6 5.5 360 .09 

Ferndale Fire Station 124.262 Up .03 

(USGS) 270 .07 

Eel River Valley Array 40.599 46:52.0 3.9 360 .07 

Fortuna Fire Station 124.154 Up .01 

(USGS) 270 .07 

Eel River Valley Array 40.699 46:59.0 1.2 (1) 

College of the Redwoods 124.200 

(USGS) 

Eel River Valley Array 40.735 (3) (2) (1) 

South Bay Union School 124.207 

(USGS) 

10 December 1991- Bear Valley Station 12 36.658 (3) 2.2 (1) 

17June1992 Williams Residence 121.249 

Central Calif. (USGS) 

Epicenter and 

magnitude unknown 

24 April1992- Anza Array 33.616 (3) (2) (1) 

28June1992 Gamer Valley Fire Station 116.627 

Southern Calif. (USGS) 

Epicenter and 

magnitude unknown Note: One additional record1 recovered at Gamer Valley Fire Station. 

14 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time mmer (az) amfi)tude (s) 

Long. 0 W} 

28June 1992 Morongo Valley 34.048 57:39.6 3.4 135 .16 13.2 

1157:34.1 G.m.t. Fire Station 116.577 Up .18 26.2 

Southern Calif. (USGS) 045 .22 21.9 

34.201N, 116.436W 

Magnitude 7.6 Ms Morongo Valley 34.053 Up .16 

(Landers Hall (Geos #58) 116.572 360 .18 

earthquake) {TEMP) 090 .14 

Morongo Valley 34.049 Up .20 

Ballpark (Geos #62) 116.593 360 .18 

{TEMP) 090 .20 

Whitewater Canyon 33.989 {3) 2.8 270 .12 18.5 

Trout Farm 116.655 Up .12 17.9 

(USGS) 180 .12 17.8 

Fun Valley 33.925 {3) 2.5 135 .22 23.4 

Reservoir 361 116.389 Up .10 0.3 

(USGS) 045 .22 24.3 

North Palm Springs 33.924 {3) 3.5 180 .14 3.0 

Fire Station 116.543 Up .11 1 peak 

(USGS) 090 .14 7.3 

North Palm Springs 33.924 Up .11 

(Geos#80) 116.543 360 .13 

{TEMP) 090 .13 

Mission Creek Fault 33.924 Up .08 

Geos#57 116.420 360 .12 

{TEMP) 090 .13 

Thousand Palms 33.82 {3) 6.1 135 .12 0.1 

Post Office 116.40 Up .09 

(USGS) 045 .10 2 peaks 

Note: Three additional records1 recovered at Thousands Palms Post Office. 

Forest Falls 34.088 57:46.4 5.1 300 .10 1 peak 

Post Office 116.919 Up .09 

(USGS) 210 .12 1.8 

Indio 33.747 57:45.7 6.6 180 .13 32.0 

Jackson Road 116.214 Up .08 

(USGS) 090 .29 26.9 

Anza Array 33.707 {3) 4.0 360 .03 

Keenwild Forest Station 116.716 Up .05 

(USGS) 270 .03 

15 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN titre mffler (az) am~ tude (s) 

Long. 0 W} 

28June 1992 Anza Array 33.738 {3) 8.4 315 .05 

(Landers Cranston Forest Station 116.838 Up .08 

earthquake, (USGS) 225 .07 

continued) 

Note: Two additional records1 recovered at Cranston Forest Station. 

Anza Array 33.676 {3) 7.9 135 .04 

Herkey Creek Park 116.680 Up .03 

(USGS) 045 .06 

Mentone 34.067 57:49.8 8.5 315 .08 

Fire Station 117.117 Up .09 

(USGS) 225 .08 

San Bernardino Array 34.080 {3) 6.8 360 .13 11.2 

Mill Creek Ranger Station 117.114 Up .10 1 peak 

(USGS) 270 .14 13.0 

Anza Array 33.821 {3) 7.9 360 .07 

San Jacinto Tunnel, 116.967 Up .06 

West Portal (USGS) 270 .05 

Note: One additional record1 recovered at San Jacinto Tunnel, West Portal. 

Anza Array 33.607 {3) 8.3 360 .04 

Pinyon Flat Observatory 116.453 Up .04 

(USGS) 270 .05 

Note: Two additional records1 recovered at Pinyon Flat Observatory. 

San Bernardino Array 34.122 57:52.7 5.7 360 .06 

E. Highlands Plant #108 117.158 Up .03 

(USGS) 270 .06 

Anza Array 33.616 57:49.2 8.1 360 .08 

Garner Valley Fire Station 116.627 Up .09 

(USGS) 270 .09 

Anza Array 33.578 57:51.1 8.8 360 .05 

Pine Meadow Ranch 116.589 Up .05 

(USGS) 270 .05 

Anza Array 33.568 57:51.5 6.0 360 .04 

Rarick Springs 116.510 Up .03 

(USGS) 270 .05 

San Bernardino Array 34.136 57:51.5 7.9 315 .08 

Highland Fire Station 117.213 Up .07 

(USGS) 225 .09 

16 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximum Duration 

(Owner) (Lat. oN time trimer (az) am~ tude (s) 

Long. 0 W) 

28June1992 Anza Array 33.60 57:51.9 7.3 360 .05 

(Landers Tripp Flats 116.74 Up .04 

earthquake, (USGS) (Triaxial) 270 .04 

continued) 

Anza Array 33.602 360 .04 

Tripp Flats 116.755 Up .04 

(USGS) (Digital) 090 .05 

Anza Array 33.630 (3} 2.1 360 .06 

Red Mountain 116.847 Up .03 

(USGS) 270 .08 

Anza Array 33.555 57:52.0 8.3 (1} 

Anza Fire Station 116.661 

(USGS) 

Reche Canyon 34.004 (3} 7.2 330 .04 

Olive Dell Ranch 117.223 Up .03 

(USGS) 240 .05 

Note: One additional record 1 recovered at Reche Canyon, Olive Dell Ranch. 

Lorna Linda VA Hospital 34.050 (3} 8.3 

(VA) 117.249 

North Ground Site 360 .08 

Up .10 1 peak 

270 .09 

South Ground Site (3} 9.3 360 .08 

Up .05 

270 .08 

Structure Array 

Ch. 1 - Ground floor center Down .04 

Ch. 2 - Ground floor center 180 .08 

Ch. 3 - Ground floor center 270 .08 

Ch. 4 - 4th floor center 270 .22 24.2 

Ch. 5 - Ground floor north 270 .10 2 peaks 

Ch. 6 - 4th floor center 180 .15 16.8 

Ch. 7 - 4th floor north 270 .27 26.7 

Ch. 8 -Ground floor south 180 .07 

Ch. 9 - 4th floor south 270 .23 23.2 

Note: One each additional record 1 recovered at Lorna Linda VA north ground site and 

structural array. 

Lorna Linda University 34.050 (3} 8.4 360 .10 1 peak 

Medical Center 117.263 Up .05 

(USGS) 270 .09 

17 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continue-f 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximurr Duration 

(Owner) (Lat. oN time triMer (az) am~tud€ (s) 

Long. OW) 

28June1992 Mecca 33.572 (3) 12.1 270 .09 

(Landers Fire Station 116.076 Up .03 

earthquake, (USGS) 180 .07 

continued) 

San Bernardino 34.106 57:52.1 8.6 

County Government Center 117.287 

(USGS) 

Basement, SW 090 .06 

Up .07 

360 .09 

Structure Array 

Ch. 1 - 2nd floor NW 360 .13 3.1 

Ch. 2 - 2nd floor NE 090 .10 2.3 

Ch. 3 - 2nd floor NE 360 .14 6.1 

Ch. 4 - 2nd floor SW 090 .09 

Ch. 5 - 4th floor SW 090 .21 19.3 

Ch. 6 - 4th floor NW 360 .17 16.6 

Ch. 7- Roof (6th) NE 090 .28 21.2 

Ch. 8- Roof (6th) NW 360 .34 31.3 

Ch. 9 - Roof (6th) SW 090 .26 21.8 

Ch. 10 - Roof (6th) NE 360 .36 29.1 

Ch. 11- 4th floor NE 090 .17 12.5 

Ch. 12 - 4th floor NE 360 .26 27.8 

Ground Site 57:51.9 9.0 360 .06 

Up .05 

270 .07 

San Bernardino Array 34.183 57:54.3 6.4 360 .12 3.6 

North "F" Street 117.295 Up .09 

(USGS) 270 '~12 0.5 

San Bernardino Array 34.086 (3) 9.5 360 .10 1 peak 

San Bernardino Valley 117.309 Up .08 

College (USGS) 270 .11 1 peak 

Anza Array 33.512 (3) 9.9 360 .05 

Cahuilla Valley 116.798 Up .04 

(USGS) 270 .08 

Anza Array 34.47 57:54.2 7.1 360 .05 

TuleCanyon 116.64 Up .03 

(USGS) 270 .03 

San Bernardino Array 34.134 (3) 7.0 360 .06 

Rialto Fire Station 117.368 Up .05 

(USGS) 270 .06 

18 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximum Duration 

(Owner) (Lat. oN time triMer (az) am~ tude (s) 

Long. 0 W} 

28June 1992 Mills Filter Plant 33.920 {3) 7.8 360 .04 

(Landers (MWD) 117.320 Up .03 

earthquake, 270 .05 

continued) 

Note: One additional record 1 recovered at Mills Filter Plant. 

San Bernardino Array 34.235 {3) 10.2 360 .06 

Devore Water Department 117.407 Up .07 

(USGS) 270 .06 

Skinner Dam 33.58 {3) {2) 

(MWD) 117.07 

Left Abutment 178 .04 

Up .03 

088 .05 

Structure Array 

Ch. 1 - Center crest 180 .16 2.4 

Ch. 2- Center crest Up .04 

Ch. 3 - Center crest 270 .11 1 peak 

Ch. 4 - Left crest 180 .09 

Ch. 5 - Left crest 270 .12 0.5 

Ch. 6 - Left slope 270 .08 

Ch. 7 - Center slope 180 .04 

Ch. 8 - Center slope Up .03 

Ch. 9 - Center slope 270 .06 

Ch. 10 - Center toe 180 .08 

Ch. 11 - Center toe Up .03 

Ch. 12 - Center toe 270 .06 

Hinds Pumping Plant 33.71 {3) {2) 270 .05 

(MWD) 115.63 Up .04 

180 .04 

Anza Array 33.38 57:55.8 9.5 {1) 

Chihuahua Valley 116.68 

(USGS) 

Anza Array 33.348 {3) {2) 360 .07 

Rancho de Anza 116.400 Up .03 

(USGS) 270 .05 

Lytle Creek 34.251 {3) 11.2 360 .08 

Mt. Lakes Resort 117.490 Up .04 

(USGS) 270 .08 

19 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time triMer (az) am~ tude (s) 

Long. 0 W} 

28June1992 Riverside 33.968 (3) (2) 

(Landers Santa Ana River Bridge 117.447 

earthquake, (USGS/MWD) 

continued) 

North Abutment 166 .05 

Up .04 

076 .03 

Structure Array 

Ch. 1 -North abutment 346 .06 

Ch. 2 -North abutment Down .02 

Ch. 3 - North abutment 076 .02 

Ch. 4 - Pier 7-8, mid-span 346 .12 16.7 

Ch. 5 - Pier 7-8, mid-span Down .11 18.7 

Ch. 6- Pier 7-8, mid-span 076 .10 0.5 

Ch. 7 - Pier 8, below bearing 346 .11 6.0 

Ch. 8 - Pier 8, below bearing Down .02 

Ch. 9 - Pier 8, below bearing 076 .02 

Ch. 10 - Pier 8 above bearing 346 .12 17.3 

Ch. 11 - Pier 8 above bearing Down .02 

Ch. 12 - Pier 8 above bearing 076 .02 

Lake Mathews Dam 33.852 (3) 8.5 

(MWD) 117.451 

Dike Toe 252 .05 

Up .04 

162 .08 

Note: One additional record1 recovered at Lake Mathews Dam, dike toe. 

Borrego Springs 33.21 57:59.0 10.4 (1) 

Scripps Clinic 116.33 

(USGS) 

San Antonio Dam 34.157 (3) 12.2 

Upland 117.676 

(ACOE) 

Crest 090 .07 

Up .04 

360 .14 0.6 

Downstream 090 .04 

Up .02 

360 .05 

20 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time triMer (az) am~ tude (s) 

Long. 0 W) 

28June1992 Prado Dam 33.890 (3) 7.6 

(Landers Corona 117.641 

earthquake, (ACOE) 

continued) 

Crest 090 .06 

Up .03 

360 .08 

Left Abutment 090 .04 

Up .04 

360 .05 

Downstream 090 .09 

Up .05 

360 .08 

Note: One additional record1 recovered at Prado Dam downstream. 

Iron Mountain 34.148 (3) 2.7 (1) 

Pumping Plant 115.122 

(MWD) 

Live Oak Reservoir 34.140 (3) (2) 

LaVerne 117.749 

(MWD) 

Abutment (1) 

Weymouth Filter Plant 34.114 (3) 13.5 

LaVerne 117.778 

(MWD) 

Ground Site 017 .07 

Up .03 

287 .05 

Tank Top 017 .16 13.9 

Up .15 13.1 

287 .18 7.4 

Paradise Springs Camp 34.40 58:14.0 5.0 (1) 

USGS) 117.80 

Diemer Filter Plant 33.913 (3) (2) 

Yorba Linda 117.819 

(MWD) 

Administration Building (1) 

21 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time mffler (az) am~ tude (s) 

Long. 0 W) 

28June 1992 Reservoir Roof 281 .07 

(Landers Up .04 

earthquake, 191 .06 

continued) 

Valyermo Forest Station 34.44 (3) 15.9 300 .08 

(USGS) 117.85 Up .05 

210 .08 

Carbon Canyon Dam 33.914 (3) 10.0 

Brea 117.839 

(ACOE) 

Crest 131 .07 

Up .03 

041 .05 

Left Abutment (1) 

Right Abutment 131 .05 

Up .03 

041 .05 

Orange County Reservoir 33.935 (3) (2) (1) 

Ground Level 117.883 

(MWD) 

Brea Dam 33.890 (3) 5.2 

Fullerton 117.924 

(ACOE) 

Crest 132 .06 

Up .04 

042 .07 

Downstream 132 .05 

Up .03 

042 .03 

Left Abutment 132 .05 

Up .03 

042 .07 

Santa Ana 33.751 (3) (2) 360 .05 

400 Civic Center Dr. 117.870 Up .03 

(USGS) 270 .04 

22 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time trimer (az) am~ tude (s) 

Long. 0 W} 

28June 1992 Chantry Flat Forest Station 34.196 

(Landers (USGS) 118.021 

earthquake, 

continued) Site 1 290 .07 

Up .06 

020 .04 

Site 2 290 .06 

Up .02 

020 .07 

Site 3 290 .09 

Up .04 

020 .07 

Costa Mesa 33.677 (3) 2.7 360 06 

John Wayne Airport 117.869 Up 02 

(USGS) 270 05 

Irvine 33.656 {3) 16.8 

19900 MacArthur Blvd. 117.859 

(USGS) 

Basement (1) 

Structure Array 

Ch. 1 -Roof NE comer 060 .18 13.7 

Ch. 2- Roof SW comer 060 .15 11.7 

Ch. 3 - 7th Floor NE 060 .11 8.9 

Ch. 4 - 7th Floor SW 060 .10 2.2 

Ch. 5 - 1st Floor South side 060 .05 

Ch. 6 - Roof, SW comer 330 .16 14.2 

Ch. 7-7th Floor, SW 330 .10 1 peak 

Ch. 8 - 1st Floor West side 330 .05 

Ch. 9 - 1st Floor South side 330 .04 

Ch. 10 - 7th Floor SW comer Down .08 

Ch. 11-1st Floor West side Down .04 

Ch. 12 -1st Floor South side Down .03 

San Joaquin Reservoir 33.620 (3) (2) 

(MWD) 117.842 

Crest 087 .06 

Up .06 

357 .10 1 peak 

Left Abutment (1) 

Littlerock 34.521 (3) 9.8 300 .06 

Post Office 117.991 Up .05 

(USGS) 210 .08 

23 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximum Duration 

(Owner) (Lat. oN time triMer (az) am~ tude (s) 

Long. 0 W) 

28June 1992 Newport Beach 33.600 {3) 16.1 360 .07 

(Landers 800 Marguerite 117.866 Up .02 

earthquake, (USGS) 270 .06 

continued) 

Newport Beach 33.618 {3) 16.3 

800-840 Newport Center Dr. 117.878 

(USGS) 

Structure Array 

Ch. 1 - Tower 2 Levell Center 360 .04 

Ch. 2- Tower 2 Levell Center Up .02 

Ch. 3 - Tower 2 Levell Center 090 .05 

Ch. 4 - Tower 2 Level2 West 360 Inoperatiue 

Ch. 5 - Middle Building Level 2 360 .04 

Ch. 6 - Middle Building Level 2 090 .08 

Ch. 7- Tower 2, Level9 South 090 .15 0.9 

Ch. 8-12 Inoperati~.Te 

Whittier 33.977 {3) 16.3 

7215 Bright Ave. 118.036 

(OWNR/USGS) 

Basement {1) 

5th Floor 180 .06 

Up .03 

090 .07 

lOth Floor 180 .08 

Up .03 

090 .10 1.0 

Whittier Narrows Dam 34.020 {3) 10.1 

Pico Rivera 118.053 

(ACOE) 

Crest 118 .06 

Up .03 

028 .05 

Upstream (Baseyard) 118 .05 

Up .02 

028 .05 

Costa Mesa Fire Station #4 33.658 (3) 3.5 360 .06 

2300 Placentia Ave. 117.931 Up .03 

(USGS) 270 .03 

24 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S.minus Direction Maximum Duration 

(Owner) (Lat. oN time trimer (az) am~tudr~ (s) 

Long. 0 W) 

28June1992 Norwalk 33.915 (3) 12.3 

(Landers 12400 Imperial Highway 118.067 

earthquake, (USGS/BECH) 

continued) 

South Ground Site 090 .06 

Up .05 

360 .05 

Norwalk 33.917 58:13.3 9.9 

12440 Imperial Highway 118.066 

(USGS/BECH) 

Basement 090 .05 

Up .03 

360 .04 

Structure Array 1 

Ch. 1 - 9th Level(Roof) Center 090 .12 29.6 

Ch. 2 - 6th Level Center 090 .08 

Ch. 3 - 3rd Level Center 090 .04 

Ch. 4 - 2nd Level Center 090 .06 

Ch. 5 - 1st Level(Bsmt) East end 180 .06 

Ch. 6 - 6th Level West-center 180 .22 28.3 

Ch. 7 - 1st Level(Bsmt) Center Up .02 

Ch. 8 - 1st Level(Bsmt) Center 090 Inoperative 

Ch. 9 - 1st Level(Bsmt) Center 180 .06 

Ch. 10 - Downhole (30') Center Up .02 

Ch. 11 - Downhole (30') Center 090 .05 

Ch. 12 - Downhole (30') Center 180 .04 

Structure Array 2 

Ch. 13 - 9th Level Roof East end 180 .22 28.3 

Ch. 14 - 6th Level East end 180 .16 6.4 

Ch. 15 - 3rd Level East end 180 .10 1 peak 

Ch. 16 - 2nd Level East end 180 .07 

Ch. 17- 9th Level Roof Bldg ctr 180 .24 32.4 

Ch. 18 - 6th Level Bldg Ctr 180 .21 27.8 

Ch. 19- 3rd Level Bldg Ctr 180 .12 2 peaks 

Ch. 20 - 2nd Level Bldg Ctr 180 .06 

Ch. 21- 9th Level Roof West end 180 .20 32.0 

Ch. 22 - 6th Level West end 180 .14 22.4 

Ch. 23 - 3rd Level West end 180 .08 

Ch. 24 -2nd Level West end 180 .06 

North Ground Site 33.917 58:14.5 8.5 090 .07 

118.065 Up .08 

360 .07 

25 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time tri~er (az) am~ tude (s) 

Long. 0 W) 

28June1992 Garvey Reservoir 34.048 (3) 6.0 

(Landers Monterey Park 118.111 

earthquake, (MWD) 

continued) 

Crest 114 .04 

Up .02 

024 .05 

Abutment Building (1) 

Alhambra 34.085 58:21.3 4.0 

900 South Fremont Ave. 118.149 

(USGS) 

Structure Array 

Ch. 1 - 12th Floor Center 360 .09 

Ch. 2 - 12th Floor Center 090 .13 41.9 

Ch. 3 - 12th Floor North end 090 .12 41.1 

Ch. 4 - 6th Floor center 090 .07 

Ch. 5 - 6th Floor center 360 .06 

Ch. 6 - 6th Floor North end 090 .06 

Ch. 7- 2nd Floor Center 090 .05 

Ch. 8 - 2nd Floor Center 360 .07 

Ch. 9 - 2nd Floor North end 090 .03 

Ch. 10 - Basement Center 360 .03 

Ch. 11- Basement Center Up .03 

Ch. 12 - Basement Center 090 .04 

Palmdale 34.58 (3) 15.8 120 0.07 

Fire Station 118.10 Up 0.03 

(USGS) 030 0.06 

Pasadena 34.149 (3) 8.4 (1) 

535 S. Wilson Ave. 118.172 

(USGS) 

Los Angeles 33.996 (3) 11.5 360 .06 

Bulk Mail Facility (Bell) 118.162 Up .02 

(USGS) 270 .05 

Long Beach VA Hospital 33.778 (3) 7.6 

(VA) 118.118 

Basement (1) 

6th Floor 360 .08 

Up .02 

270 .07 

26 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximun1 Duration 

(Owner) (Lat. oN time tri~er (az) am~tudf~ (s) 

Long. 0 W} 

28June1992 11th Floor 360 .12 1 peak 

(Landers Up .03 

earthquake, 270 .12 1.8 

continued) 

Ground Site (1) 

Los Angeles 34.088 (4} 14.0 360 .06 

981 Montecito Dr. 118.201 Up .03 

(USGS) 270 .05 

San Diego VA Hospital 32.87 (3} (2) 

Building 1 117.23 

(VA) 

Basement (1} 

Structure Array 

Ch. 1 - 7th Level West end 360 .05 

Ch. 2-7th Level West central 360 .05 

Ch. 3 - 7th Level Center 360 .06 

Ch. 4 - 7th Level Center 090 .07 

Ch. 5 - 7th Level East central 360 .06 

Ch. 6 - 7th Level East end 090 .06 

Ch. 7 - 7th Level East end 360 .06 

Ch. 8 - 3rd Level East end 090 .03 

Ch. 9 - 3rd Level East end 360 .03 

Ch. 10 - Basement Center Up .02 

Ch. 11 - Basement Center 360 .02 

Ch. 12 - Basement Center 090 .02 

Los Angeles 34.052 (3} 17.5 120 .08 

255 E. Temple St. 118.237 Up .05 

(OWNR) 21st level 030 .10 0.1 

Los Angeles 34.067 (3} (2) 

1111 Sunset Blvd. 118.248 

(MWD) 

Basement (1) 

4th floor 348 .04 

Up .02 

258 .05 

Roof (8) 348 .09 

Up .03 

258 .09 

27 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN tiire mmer (az) am~ tude (s) 

Long. 0 W} 

28June1992 Los Angeles 34.053 (3) 19.0 083 .08 

(Landers 333 S. Hope St. 118.252 Up .07 

earthquake, (OWNR) 55th floor 353 .08 

continued) 

Note: One additional record1 recovered at 333 S. Hope, 55th floor. 

Los Angeles 34.052 (3) (2) 

1100 Wilshire Blvd. 118.263 

(USGS) 

Basement 3 NE (1) 

Basement 3 SE (1) 

Basement 4 NW (1) 

Structure Array 

Ch. 1 .. 12th Floor North 298 .08 

Ch. 2- 12th Floor North 208 .05 

Ch. 3 - 12th Floor South 208 .05 

Ch. 4 -13th Floor North 298 .08 

Ch. 5- 13th Floor North 208 .06 

Ch. 6 -13th Floor South 208 .05 

Ch. 7 - 32nd Floor North 298 .08 

Ch. 8 - 32nd Floor North 208 .14 2.0 

Ch. 9 - 32nd Floor South 208 .06 

Ch. 10 - Ground Floor North 298 .02 

Ch. 11 - Ground Floor North 208 .03 

Ch. 12 - Ground Floor South 208 .02 

Los Angeles 34.063 (3) 17.3 028 .06 

600 S. Commonwealth Ave. 118.284 Up .04 

(OWNR) 19th floor 298 .04 

Los Angeles 34.058 (3) 9.2 090 .13 3 peaks 

3000 Leeward Ave. 118.288 Up .02 

(OWNR) Roof (13) 360 .10 1 peak 

Los Angeles 34.118 (3) (2) (1) 

Griffith Park Observatory 118.299 

(USGS) 

Los Angeles 34.098 (3) 11.3 090 .09 

1526 N. Edgemont St. 118.249 Up .03 

(OWNR) Roof (8) 360 .13 1 peak 

Los Angeles 34.060 (3) 19.5 (1) 

695 S. Vermont Ave 118.290 

(OWNR) 18th floor 

28 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximum Duration 

(Owner) (Lat. oN time trimer (az) ~tud~ (s) 

Long. 0 W} 

28June 1992 Leona Valley 34.62 58:15.2 17.2 120 .04 

(Landers Fire Station 118.29 Up .03 

earthquake, (USGS) 030 .06 

continued) 

Los Angeles 34.106 {3) (2) {1) 

2005 N. Highland Ave. 118.336 

(OWNR) Roof (8) 

Los Angeles 34.063 {3) 6.3 180 .10 2 peaks 

4929 Wilshire Blvd. 118.337 Up .05 

(OWNR) Roof (11) 090 .16 34.5 

Note: One additional record1 recovered at 4929 Wilshire Blvd., roof. 

Los Angeles 33.855 {3) 6.5 360 .10 1 peak 

19191 S. Vermont Ave. 118.291 Up .02 

(OWNR) Roof (11) 270 .11 1.2 

Los Angeles 34.071 {3) 12.7 335 .09 

444 S. San Vicente Up .04 

(OWNR) Roof (12) 245 .15 6.8 

Los Angeles 33.945 {3) 16.2 090 .10 0.3 

5250 Century Blvd. 118.372 Up .03 

(OWNR) Roof (8) 360 .05 

Palos Verdes Reservoir 33.772 {3) {2) 

(MWD) 118.319 

Abutment {1) 

Crest {1) 

Los Angeles 34.057 {3) 21.5 300 .09 

2121 Ave. of the Stars 118.414 Up .06 

(OWNR) 36th level 210 .13 3.4 

Note: One additional record1 recovered at 2121 Ave. of the Stars, 36th level. 

Los Angeles 33.946 {3) 14.0 270 .07 

6101 Century Blvd. 118.391 Up .02 

(OWNR) 15th level 180 .12 0.2 

Los Angeles 34.059 {3) 11.8 320 .07 

2029 Century Park East 118.413 Up .04 

(OWNR) 43rd Floor 230 .08 

Los Angeles 34.058 {3) 21.5 320 .06 

2049 Century Park East 118.412 Up .04 

(OWNR) 43rd Floor 230 .09 

29 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximum Duration 

(Owner) (Lat. oN time trimer (az) am~ tude (s) 

Long. 0 W) 

28June1992 Los Angeles 34.063 (3} (2) 287 .05 

(Landers 10550 Wilshire Blvd. 118.431 Up .02 

earthquake, (OWNR) Roof (14) 197 .08 

continued) 

Los Angeles 34.062 (3} 4.5 250 .08 

10601 Wilshire Blvd. 118.433 Up .02 

(OWNR) Roof (21) 160 .07 

Los Angeles 34.061 (3} (2} 160 .11 1.6 

10660 Wilshire Blvd. 118.434 Up .02 

(OWNR) Roof (19) 070 .11 7.6 

Los Angeles 34.040 (3} 5.3 

19551/2PurdueAve. 118.445 

(USGS) 

Basement 235 .05 

Up .02 

145 .03 

1st level 235 .05 

Up .03 

145 .04 

3rd level 235 .05 

Up .03 

145 .07 

Los Angeles 34.060 (3} 17.5 252 .09 

10751 Wilshire Blvd. 118.438 Up .02 

(OWNR) Roof (12) 162 .09 

Los Angeles 34.044 (3} 8.1 226 .06 

12121 Wilshire Blvd. 118.467 Up .03 

(OWNR) Roof (15) 136 .05 

Sepulveda VA Hospital 34.249 (3} 15.0 (1} 

Building #40 118.475 

(VA) 

Jensen Filter Plant 34.312 (3} 14.2 

Balboa Park 118.496 

(MWD) 

Administration Building 022 .07 

Basement Up .02 

292 .09 

Generator Building 022 .05 

Up .02 

292 .05 

30 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximum Duration 

(Owner) (Lat. oN time trimer (az) am~tuc~ (s) 

Long. 0 W} 

28June 1992 Reservoir Roof 022 .06 

(Landers Up .03 

earthquake, 292 .06 

continued) 

Gene Pumping Plant 34.290 {3) {2) {1) 

(MWD) 114.171 

Isabella Auxiliary Dam 34.643 

(ACOE) 118.470 

Left Abutment 3S.642 {4) {2) {1) 

118.463 

Right Abutment 3S.643 {4) {2) {1) 

118.470 

Left Crest 3S.642 {4) {2) 290 .OS 

118.467 Up .02 

200 .10 1 peak 

Right Crest {4) {2) 290 .06 

Up .03 

200 .OS 

Upper Tower 36.643 {4) {2 290 .06 

118.468 Up .03 

200 .10 1 peak 

Downstream 3S.641 {4) {2) 290 .08 

118.469 Up .02 

200 .OS 

Lake Success Dam 36.061 {4) {2) 

(ACOE) 118.920 

Right Crest {1) 

Terminus Main Dam 36.420 {3) {2) 

(ACOE) 119.000 

Right Crest {1) 

28June 1992 Morongo Valley 34.048 OO:S0.3 2.0 135 .07 

1200G.m.t. Fire Station 116.S77 Up .09 

Southern Calif. (USGS) 04S .08 

Epicenter and 

magnitude unknown Indio 33.747 OO:S6.1 4.3 180 .06 

Jackson Road 116.214 Up .03 

(USGS) 090 .07 

31 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-continued 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximum D·uation 

(Owner) (Lat. oN time triMer (az) am~ tude (s) 

Long. 0 W} 

::.1 June 1992 Morongo Valley 34.048 01:18.8 {2) 135 .04 

:· 201 G.m.t. Fire Station 116.577 Up .03 

f0uthem Calif. (USGS) 045 .06 

Epicenters and 

r'1agni.tudes unknown Indio 33.747 01:23.8 7.9 180 .08 

Jackson Road 116.214 Up .02 

(USGS) 090 .08 

San Bernardino 34.106 01:02.3 9.1 

County Government Center 117.287 

(USGS) 

Basement 01:02.2 10.3 (1) 

Structure Array 

Ch. 1-12 {1) 

::.1June 1992 Morongo Valley 34.048 08:09.0 2.1 {1) 

:'208 G.m.t. Fire Station 116.577 

~::0uthem Calif. (USGS) 

Epicenter and 

r'1agni.tude unknown 

::.1 June 1992 Morongo Valley 34.048 14:29.5 {2) {1) 

:· 214 G.m.t. Fire Station 116.577 

f0uthem Calif. (USGS) 

Epicenter and 

r'1agni.tude unknown 

::.1 June 1992 Forest Falls 34.088 18:58.3 {2) {1) 

:· 218 G.m.t. Post Office 116.919 

f0uthem Calif. (USGS) 

Epicenter and 

r'1agni.tude unknown 

::.1 June 1992 Morongo Valley 34.048 36:44.9 2.3 135 .04 

:· 236:40.6 G.m.t. Fire Station 116.577 Up .05 

f0uthern Calif. (USGS) 045 .07 

r4.139N, 116.431W 

l.fagnitude 5.1 MD 

::.1 June 1992 Morongo Valley 34.048 44:02.6 2.4 {1) 

:'244 G.m.t. Fire Station 116.577 

~::ryu thern Calif. (USGS) 

Epicenter and 

r'1agni.tude unknown Note: One additional record 1 recovered at Morongo Valley Fire Station. 

32 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continuet! 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time mmer (az) am~ tude (s) 

Long. 0 W) 

28June1992 Morongo Valley 34.048 09:33.5 (2) (1) 

1409:28.8 G.m.t. Fire Station 116.577 

Southern Calif. (USGS) 

34.111N, 116.646W 

Magnitude 4.1 ML 

28June1992 Morongo Valley 34.048 43:28.0 3.3 135 .05 

1443:21.0 G.m.t. Fire Station 116.577 Up .05 

Southern Calif. (USGS) 045 .06 

34.163 N, 116.855W 

Magnitude 5.4 Ms Forest Falls 34.088 43:24.6 2.0 300 .20 0.7 

(Landers Post Office 116.919 Up .11 0.4 

aftershocks) (USGS) 210 .20 1.0 

Forest Falls 34.088 [43:54.2] [2.3] 300 .07 

Post Office 116.919 Up .05 

(USGS) 210 .07 

Anza Array 33.616 43:33.6 7.6 (1) 

Gamer Valley Fire Station 116.627 

(USGS) 

San Bernardino Array 34.136 43:33.2 (2) (1) 

Highland Fire Station 117.213 

(USGS) 

Mentone Fire Station 34.067 43:27.3 3.8 (1) 

(USGS) 117.117 

San Bernardino Array 34.122 43:31.8 (2) (1) 

E. Highlands Plant #108 117.158 

(USGS) 

San Bernardino Array 34.183 43:34.8 (2) (1) 

North "F" Street 117.295 

(USGS) 

Anza Array 33.676 43:41.7 (2) (1) 

Herkey Creek Park 116.680 

(USGS) 

San Bernardino 34.106 43:29.3 5.6 

County Government Center 117.287 

(USGS) 

Basement (1) 

Structure Array 

Ch. 1-12 (1) 

Ground Site (1) 

33 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN titre trimer (az) am~ tude (s) 

Long. 0 W) 

28June1992 Anza Array 33.578 43:35.0 7.6 {1) 

1443:21.0 G.m.t. Pine Meadow Ranch 116.589 

(Landers (USGS) 

aftershocks, 

continued) Anza Array 33.38 43:38.7 (2) {1) 

Chihuahua Valley 116.68 

(USGS) 

28June 1992 Fun Valley 33.925 {3) 2.2 135 .11 2.7 

1159-1505 G.m. t. Reservoir 361 116.389 Up .08 

Southern Calif. (USGS) 045 .09 

Epicenters and 

magnitudes unknown [3] [2.5] 135 .12 0.6 

Up .07 

045 .10 1 peak 

{3) {2) 135 .07 

Up .03 

045 .08 

Note: Four additional recordsl recovered at Fun Valley Reservoir 361. 

Whitewater Canyon 33.989 {3) 3.7 270 .08 

Trout Farm 116.655 Up .05 

(USGS) 180 .06 

[3] [2] 270 .11 1 peak 

Up .05 

180 .06 

{3) 4.1 270 .12 1 peak 

Up .06 

180 .09 

Note: Eight additional records1 recovered at Whitewater Canyon Trout Farm. 

San Bernardino Array 34.080 {3) 3.9 360 .06 

Mill Creek Ranger Station 117.114 Up .06 

(USGS) 270 .06 

Note: Two additional recordsl recovered at Mill Creek Ranger Station. 

North Palm Springs 33.924 {3) 1.8 180 .06 

Fire Station 116.543 Up .06 

(USGS) 090 .06 

[3] [2) 180 .05 

Up .04 

090 .07 

34 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maxim\11"\ Duration 

(Owner) t,at. 0 N tiire hifsr (az) ~tud~ (s) 

ng. oW) 

28June1992 (3) 4.9 180 .04 

1159-1505 G.m.t. Up .02 

(continued) 090 .06 

(3) 5.3 180 .OS 

Up .03 

090 .06 

Note: Six additional records1 recovered at North Palm Springs Fire Station. 

28June 1992 Morongo Valley 34.048 04:56.9 (2) (1) 

1504:51.4 G.m.t. Fire Station 116.577 

Southern Calif. (USGS) 

34.163N, 116.827W 

Magnitude 4.4 ML Forest Falls 34.088 04:57.1 (2) (1) 

Post Office 116.919 

(USGS) 

Mentone 34.067 05:01.8 (2) (1) 

Fire Station 117.117 

(USGS) 

28June1992 Forest Falls 34.088 05:33.7 1.6 300 .26 11.9 

1505:30.7 G.m.t. Post Office 116.919 Up .30 12.2 

Southern Calilf. (USGS) 210 .26 12.0 

34.203N, 116.827W 

Magnitude 6.7 Ms Whitewater Canyon 33.989 (3) (2) 270 .21 10.9 

(Big Bear Trout Farm 116.655 Up .21 11.2 

earthquake) (USGS) 180 .22 9.0 

Note: Four additional records1 recovered at Whitewater Canyon Trout Farm. 

Morongo Valley 34.048 05:35.7 (2) 135 .12 1.6 

Fire Station 116.577 Up .20 8.7 

(USGS) 045 .14 9.1 

San Bernardino Array 34.080 05:35.6 3.7 360 .23 8.5 

Mill Creek Ranger Station 117.114 Up .23 7.8 

(USGS) 270 .20 7.1 

Mentone 34.067 05:36.6 5.6 315 .09 

Fire Station 117.117 Up .11 1 peak 

(USGS) 225 .08 

San Bernardino Array 34.122 05:37.2 4.7 360 .07 

E. Highlands Plant #108 117.158 Up .08 

(USGS) 270 .07 

San Bernardino Array 34.136 05:37.9 5.6 315 .12 2 peaks 

Highland Fire Station 117.213 Up .07 

(USGS) 225 .17 7.4 

35 
Earthquake 

28June1992 

(Big Bear 

earthquake, 

continued) 

Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Station Name Coordinates Trigger 5-minus Direction Maximum 

(Owner) (Lat. oN time tri~er (az) am~ tude 

Long. 0 W} 

North Palm Springs 33.924 (3) 5.0 180 .12 

Fire Station 116.543 Up .12 

(USGS) 090 .14 

Note: Two additional recordsl recovered at North Palm Springs Fire Station. 

Anza Array, West Portal 

San Jacinto Tunnel 

(USGS) 

33.821 

116.967 

(3) 5.7 360 

Up 

270 

.08 

.07 

.05 

Note: Three additional recordsl recovered at West Portal, San Jacinto Tunnel. 

Reche Canyon 34.004 (3) 6.3 330 .05 

Olive Dell Ranch 117.223 Up .04 

(USGS) 240 .05 

Lorna Linda VA Hospital 34.050 (3) 5.1 

(VA) 117.249 

North Ground Site 360 .09 

Up .08 

270 .09 

Duration 

(s) 

4.0 

2.3 

7.8 

Note: One additional record 1 recovered at Lorna Linda VA Hospital, North Gro·1nd Site. 

South Ground Site 360 .09 

Up .07 

270 .09 

Structure Array 

Ch. 1 - Ground floor center Down .06 

Ch. 2- Ground floor center 180 .08 

Ch. 3 - Ground floor center 270 .09 

Ch. 4 - 4th floor center 270 .20 13.5 

Ch. 5 -Ground floor north 270 .09 

Ch. 6 - 4th floor center 180 .16 9.3 

Ch. 7 - 4th floor north 270 .24 15.6 

Ch. 8- Ground floor south 180 .09 

Ch. 9 - 4th floor south 270 .21 12.8 

Lorna Linda University 34.050 (3) 6.9 360 .06 

Medical Center 117.263 Up .06 

(USGS) 270 .07 

San Bernardino 34.106 05:39.3 0.7 

County Government Center 117.287 

(USGS) 

Basement, SW 090 .08 

Up .07 

360 .10 1 peak 

36 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continw~d 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximur.t Duration 

(Owner) (Lat. oN time trimer (az) am~tud~ (s) 

Long. 0 W) 

28June 1992 Structure Array 

(Big Bear Ch. 1 - 2nd floor NW 360 0.11 1 peak 

earthquake, Ch. 2 - 2nd floor NE 090 0.10 1.9 

continued) Ch. 3 - 2nd floor NE 360 0.10 6.8 

Ch. 4 - 2nd floor SW 090 0.09 

Ch. 5-4th floor SW 090 0.18 14.3 

Ch. 6 - 4th floor NW 360 0.11 7.9 

Ch. 7- Roof (6th) NE 090 0.25 17.5 

Ch. 8 - Roof (6th) NW 360 0.29 20.1 

Ch. 9 - Roof (6th) SW 090 0.20 17.8 

Ch. 10 - Roof (6th) NE 360 0.33 20.7 

Ch. 11 - 4th floor NE 090 0.11 7.6 

Ch. 12 - 4th floor NE 360 0.22 17.8 

Note: One each additional recordl recovered at San Bernardino County Government Center, 

basement and structural array. 

Ground Site 05:39.2 2.3 360 .07 

Up .06 

270 .06 

San Bernardino Array 34.183 05:39.6 5.7 360 .11 2 peaks 

North "F" Street 117.295 Up .06 

(USGS) 270 .10 1 peak 

San Bernardino Array 34.086 (3) 4.8 360 .10 1 peak 

San Bernardino Valley 117.309 Up .09 

College (USGS) 270 .12 6.6 

Anza Array 33.738 (3) 6.9 315 .07 

Cranston Forest Station 116.838 Up .09 

(USGS) 225 .09 

Note: One additional record 1 recovered at Cranston Forest Station. 

Fun Valley 33.925 (3) 3.9 135 .12 1 peak 

Reservoir 361 116.389 Up .07 

(USGS) 045 .11 1.6 

Anza Array 33.707 (3) 4.0 360 .04 

Keenwild Forest Station 116.716 Up .08 

(USGS) 270 .05 

Mills Filter Plant 33.920 (3) 6.5 360 .06 

(MWD) 117.320 Up .05 

270 .07 

37 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximum Duration 

(Owner) (Lat. oN time trimer (az) am~ tude (s) 

Long. 0 W} 

28June1992 San Bernardino Array 34.235 05:40.8 7.3 360 .06 

(Big Bear Devore Water Department 117.407 Up .11 0.1 

earthquake, (USGS) 270 .06 

continued) 

Note: One additional record 1 recovered at Devore water department. 

Thousand Palms 33.82 (3) 8.2 135 .07 

Post Office 116.40 Up .09 

(USGS) 045 .08 

Note: Three additional records1 recovered at Thousand Palms post office. 

Anza Array 33.676 05:41.9 7.7 135 .11 1 peak 

Herkey Creek Park 116.680 Up .06 

(USGS) 045 .08 

Note: One additional record 1 recovered at Her key Creek Park. 

Anza Array 33.630 (3) 3.4 360 .06 

Red Mountain 116.847 Up .03 

(USGS) 270 .11 1 peak 

Lytle Creek 34.251 (3) 7.6 360 .08 

Mt. Lakes Resort 117.490 Up .03 

(USGS) 270 .08 

Riverside 33.968 (3) 5.7 

Santa Ana River Bridge 117.447 

(USGS/MWD) 

Structure Array 

Ch. 1 - North abutment 346 .02 

Ch. 2 - North abutment Down .02 

Ch. 3 - North abutment 076 .05 

Ch. 4- Pier 7-8, mid-span 346 .16 10.8 

Ch. 5- Pier 7-8, mid-span Down .11 4.7 

Ch. 6- Pier 7-8, mid-span 076 .11 6.7 

Ch. 7 - Pier 8, below bearing 346 .12 4.6 

Ch. 8 - Pier 8, below bearing Down .02 

Ch. 9 - Pier 8, below bearing 076 .01 

Ch. 10 - Pier 8 above bearing 346 .17 7.0 

Ch. 11 - Pier 8 above bearing Down .02 

Ch. 12 - Pier 8 above bearing 076 .09 

Santa Ana River Bridge 

North Abutment 166 .06 

Up .05 

076 .04 

38 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time trimer (az) am~ tude (s) 

Long. 0 W) 

28June1992 Anza Array 33.616 05:42.7 8.6 360 .07 

(Big Bear Gamer Valley Fire Station 116.627 Up .11 1 peak 

earthquake, (USGS) 270 .07 

continued) 

Note: Two additional records1 recovered at Gamer Valley fire station. 

Anza Array 33.60 05:43.4 7.4 360 .06 

Tripp Flats 116.74 Up .07 

(USGS) 270 .07 

Lake Mathews Dam 33.852 (3) 7.0 252 .07 

Dike Toe 117.451 Up .06 

(MWD) 162 .07 

Note: One additional record1 recovered at Lake Mathews dam, dike toe. 

Anza Array 33.578 05:44.1 7.9 360 .06 

Pine Meadow Ranch 116.589 Up .06 

(USGS) 270 .06 

Skinner Dam 33.58 (3) 5.3 

(MWD) 117.07 

Left Abutment 178 .05 

Up .03 

088 .06 

Structure Array 

Ch. 1 - Center crest 180 .08 

Ch. 2 - Center crest Up .04 

Ch. 3 - Center crest 270 .09 

Ch. 4 - Left crest 180 .08 

Ch. 5- Left crest 270 .06 

Ch. 6 - Left slope 270 .04 

Ch. 7 - Center slope 180 .04 

Ch. 8 - Center slope Up .03 

Ch. 9 - Center slope 270 .01 

Ch. 10 - Center toe 180 .06 

Ch. 11 - Center toe Up .05 

Ch. 12 - Center toe 270 .05 

Anza Array 33.607 (3) 8.1 360 .05 

Pinyon Flat Observatory 116.453 Up .04 

(USGS) 270 .04 

Note: One additional record1 recovered at Pinyon Flat Observatory. 

Anza Array 33.512 05:44.9 8.9 360 .06 

Cahuilla Valley 116.798 Up .02 

(USGS) 270 .05 

39 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximum Duration 

(Owner) (Lat. oN time triMer (az) am~ tude (s) 

Long. 0 W} 

28June1992 Anza Array 33.568 05:51.5 {2) 360 .05 

(Big Bear Rarick Springs 116.510 Up .04 

earthquake, (USGS) 270 .05 

continued) 

San Antonio Dam 34.157 {3) 9.6 

Upland 117.676 

(ACOE) 

Crest 090 .04 

Up .02 

360 .07 

Downstream (1) 

Anza Array 33.47 05:47.4 8.1 {1) 

TuleCanyon 116.64 

(USGS) 

Prado Dam 33.890 {3) 8.5 

Corona 117.641 

(ACOE) 

Crest 090 .05 

Up .03 

360 .04 

Left Abutment {1) 

Downstream 090 .09 

Up .04 

360 .07 

Weymouth Filter Plant 34.114 {3) 11.5 

LaVerne 117.778 

(MWD) 

Ground Site {1) 

Tank Top 017 .11 8.7 

Up .14 16.1 

287 .10 4.2 

Anza Array 33.38 05:47.5 11.0 {1) 

Chihuahua Valley 116.68 

(USGS) 

40 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continue1 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximum Duration 

(Owner) (Lat. oN time triMer (az) am~ tude (s) 

Long. 0 W} 

28June1992 Diemer Filter Plant 33.913 (3) (2) 

(Big Bear Yorba Linda 117.819 

earthquake, (MWD) 

continued) 

Administration Building 281 .04 

Up .02 

191 .05 

Reservoir Roof 281 .05 

Up .06 

191 .06 

Mecca 33.572 05:53.8 9.1 270 .04 

Fire Station 116.076 Up .02 

(USGS) 180 .06 

Carbon Canyon Dam 33.914 (3) 8.2 

Brea 117.389 

(ACOE) 

Crest 131 .05 

Up .03 

041 .07 

Left Abutment (1) 

Right Abutment 131 .04 

Up .02 

041 .05 

Anza Array 33.348 (3) 11.2 360 .06 

Rancho de Anza 116.400 Up .04 

(USGS) 270 .05 

Valyermo Forest Station 34.44 (3) 11.7 300 .07 

(USGS) 117.85 Up .04 

210 .04 

Orange County Reservoir 33.935 (3) (2) 090 .05 

Ground Level 117.883 Up .02 

(MWD) 360 .04 

Brea Dam 33.890 (3) 12.1 

Fullerton 117.924 

(ACOE) 

Crest 132 .06 

Up .04 

042 .09 

41 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximum Duration 

(Owner) (Lat. oN tirre trimer (az) ~tude (s) 

Long. 0 W} 

28June1992 Left Abutment 132 .04 

(Big Bear Up .03 

earthquake, 042 .05 

continued) 

Downstream 132 .05 

Up .04 

042 .03 

Santa Ana 33.751 (3) (2) (1) 

400 Civic Center Dr. 117.870 

(USGS) 

Costa Mesa 33.677 (3) 9.1 360 .05 

John Wayne Airport 117.869 Up .02 

(USGS) 270 .05 

Irvine 33.656 (3) (2) 

19900 MacArthur Blvd. 117.859 

(USGS) 

Basement (1) 

Structure Array 

Ch. 1 -Roof NE comer 060 .12 2.3 

Ch. 2- Roof SW comer 060 .12 1 peak 

Ch. 3 - 7th Floor NE 060 .07 

Ch. 4 - 7th Floor SW 060 .08 

Ch. 5 - 1st Floor South side 060 .03 

Ch. 6- Roof, SW comer 330 .08 

Ch. 7 - 7th Floor, SW 330 .08 

Ch. 8 - 1st Floor West side 330 .03 

Ch. 9 - 1st Floor South side 330 .05 

Ch. 10 - 7th Floor SW comer Down .06 

Ch. 11 - 1st Floor West side Down .02 

Ch. 12 - 1st Floor South side Down .03 

San Joaquin Reservoir 33.620 (3) (2) 

(MWD) 117.842 

Crest 087 .04 

Up .02 

357 .08 

Left Abutment (1) 

Littlerock 34.521 (3) 13.2 300 .03 

Post Office 117.991 Up .02 

(USGS) 210 .05 

42 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximwr Duration 

(Owner) (Lat. oN tiire trifs1er (az) am~tud~ (s) 

Long. 0 W} 

28June 1992 Whittier 33.977 (3) 16.2 

(Big Bear 7215 Bright Ave. 118.036 

earthquake, (OWNR/USGS) 

continued) 

Basement (1) 

5th Floor 180 .04 

Up .03 

090 .06 

lOth Floor 180 .05 

Up .03 

090 .06 

Newport Beach 33.600 (3) 13.0 360 .06 

800 Marguerite 117.866 Up .02 

(USGS) 270 .05 

Newport Beach 33.618 (3) 13.1 

800-840 Newport Center Dr. 117.878 

(USGS) 

Structure Array 

Ch. 1 - Tower 2 Levell Center 360 .04 

Ch. 2 - Tower 2 Levell Center Up .02 

Ch. 3 - Tower 2 Levell CenteJ 090 .03 

Ch. 4 - Tower 2 Level2 West 360 Inoperat~ve 

Ch. 5 - Middle Building Level 360 .04 

Ch. 6 - Middle Building Level 2 090 .05 

Ch. 7- Tower 2 Level 9 South 090 .08 

Ch. 8-12 Inoperafve 

Whittier Narrows Dam 34.020 (3) 14.8 

Pico Rivera 118.053 

(ACOE) 

Crest (1) 

Upstream (Baseyard) 118 .03 

Up .03 

028 .06 

Borrego Springs 33.21 05:54.1 12.6 (1) 

Scripps Clinic 116.33 

(USGS) 

Costa Mesa Fire Station #4 33.658 (3) 12.1 360 .07 

2300 Placentia Ave. 117.931 Up .03 

(USGS) 270 .04 

43 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximum Duration 

(Owner) (Lat. oN time triffler (az) am~ tude (s) 

Long. 0 W} 

28June1992 Norwalk 33.915 (3) 14.8 

(Big Bear 12400 Imperial Highway 118.067 

earthquake, (USGS) 

continued) 

South Ground Site 090 .06 

Up .04 

360 .04 

Norwalk 33.917 05:52.6 10.3 

12440 Imperial Highway 118.066 

(USGS) 

Basement (1) 

Structure Array 1 

Ch. 1 - 9th Level(Roof) Center 090 .07 

Ch. 2 - 6th Level Center 090 .07 

Ch. 3 - 3rd Level Center 090 .03 

Ch. 4 - 2nd Level Center 090 .03 

Ch. 5 - 1st Level(Bsmt) East end 180 .03 

Ch. 6 - 6th Level West-center 180 .12 1 peak 

Ch. 7 - 1st Level(Bsmt) Center Up .03 

Ch. 8 - 1st Level(Bsmt) Center 090 Inopera+ive 

Ch. 9 - 1st Level(Bsmt) Center 180 .04 

Ch. 10 - Downhole (30') Center Up .03 

Ch. 11 - Downhole (30') Center 090 .01 

Ch. 12 - Downhole (30') Center 180 .01 

Structure Array 2 

Ch. 13 - 9th Level Roof East end 180 .09 

Ch. 14 - 6th Level East end 180 .05 

Ch. 15 - 3rd Level East end 180 .03 

Ch. 16 - 2nd Level East end 180 .03 

Ch. 17 - 9th Level Roof Bldg ctr 180 .09 

Ch. 18 - 6th Level Bldg Ctr 180 .07 

Ch. 19- 3rd Level Bldg Ctr 180 .06 

Ch. 20 - 2nd Level Bldg Ctr 180 .06 

Ch. 21 - 9th Level Roof West end 180 .08 

Ch. 22 - 6th Level West end 180 .05 

Ch. 23 - 3rd Level West end 180 .03 

Ch. 24 - 2nd Level West end 180 .03 

North Ground Site 33.917 05:53.7 14.9 090 .05 

118.065 Up .03 

360 .06 

Garvey Reservoir 34.048 (3) 15.1 

Monterey Park 118.111 

(MWD) 

Crest (1) 

44 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continuetf. 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time triMer (az) am~ tude (s) 

Long. 0 W} 

28}Wle1992 Abutment Building (1) 

(Big Bear 

earthquake, Alhambra 34.085 05:53.6 18.5 

continued) 900 South Fremont Ave. 118.149 

(USGS) 

Structure Array 

Ch. 1 - 12th Floor Center 360 .06 

Ch. 2 - 12th Floor Center 090 .05 

Ch. 3 - 12th Floor North end 090 .04 

Ch. 4 - 6th Floor center 090 .04 

Ch. 5 - 6th Floor center 360 .05 

Ch. 6 - 6th Floor North end 090 .04 

Ch. 7- 2nd Floor Center 090 .04 

Ch. 8 -2nd Floor Center 360 .03 

Ch. 9 - 2nd Floor North end 090 .03 

Ch. 10 - Basement Center 360 .04 

Ch. 11 - Basement Center Up .02 

Ch. 12 - Basement Center 090 .03 

Pasadena 34.149 {3) 13.7 360 .04 

535 S. Wilson Ave. 118.172 Up .05 

(USGS) 270 .03 

Los Angeles 33.996 (3) 14.9 360 .05 

Bulk Mail Facility (Bell) 118.162 Up .02 

(USGS) 270 .04 

Long Beach VA Hospital 33.778 (3) 12.8 

(VA) 118.118 

Basement (1) 

6th Floor 360 .04 

Up .03 

270 .07 

11th Floor 360 .08 

Up .03 

270 .10 0.4 

Ground Site 33.777 (3) 8.0 360 .03 

118.115 Up .02 

270 .05 

Los Angeles 34.084 (4) 16.0 360 .05 

981 Montecito Dr. 118.201 Up .03 

(USGS) 270 .04 

45 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time triMer (az) amfi}tude (s) 

Long. 0 W) 

28June 1992 Palmdale 34.58 (3) 13.0 {1) 

(Big Bear Fire Station 118.10 

earthquake, (USGS) 

continued) 

Los Angeles 34.052 (3) 16.5 120 .06 

255 E. Temple St. 118.237 Up .05 

(OWNR) 21st level 030 .06 

Los Angeles 34.053 (3) 18.5 083 .03 

333 S. Hope St. 118.252 Up .11 0.6 

(OWNR) 55th floor 353 .08 

Los Angeles 34.067 (3) (2) 

1111 Sunset Boulevard 118.248 

(MWD) 

Basement {1) 

4th floor {1) 

Roof (8) (1) 

Los Angeles 34.063 (3) 17.0 (1) 

600 S. Commonwealth Ave. 118.284 

(OWNR) 19th floor 

Los Angeles 34.098 (3) 16.5 090 .08 

1526 N. Edgemont St. 118.294 Up .03 

(OWNR) Roof (8) 360 .09 

Los Angeles 34.058 (3) 15.8 090 .06 

3000 Leeward Ave. 118.288 Up .03 

(OWNR) Roof (13) 360 .07 

Los Angeles 34.060 (3) 18.6 (1) 

695 S. Vermont Ave. 118.290 

(OWNR) 18th floor 

Los Angeles 34.106 (3) (2) (1) 

2005 N. Highland Ave. 118.336 

(OWNR) Roof (8) 

Los Angeles 33.855 (3) 13.9 360 .05 

19191 S. Vermont Ave. 118.291 Up .02 

(OWNR) Roof (11) 270 .03 

Los Angeles 34.063 (3) 8.3 180 .10 1 peak 

4929 Wilshire Blvd. 118.337 Up .04 

(OWNR) Roof (11) 090 .17 12.0 

46 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time trimer (az) am~ tude (s) 

Long. 0 W) 

28June1992 Los Angeles 34.071 (3) 16.6 335 .09 

(Big Bear 444 S. San Vicente 118.374 Up .03 

earthquake, (OWNR) Roof (12) 245 .08 

continued) 

Leona Valley 34.62 06:20.2 (2) (1) 

Fire Station 118.29 

(USGS) 

Los Angeles 33.945 (3) 16.8 090 .05 

5250 Century Blvd. 118.372 Up .03 

(OWNR) Roof (8) 360 .04 

Palos Verdes Reservoir 34.777 (3) (2) 

(MWD) 118.321 

Crest (1) 

Abutment Bldg. (1) 

Los Angeles 34.057 (3) 30.6 300 .03 

2121 Ave. of the Stars 118.414 Up .11 1.6 

(OWNR) 36th level 210 .07 

Note: Two additional records1 recovered at 2121 Avenue of the Stars, 36th leveL 

Los Angeles 33.946 (3) 14.4 270 .05 

6101 Century Blvd. 118.391 Up .02 

(OWNR) 15th level 180 .04 

Los Angeles 34.059 (3) 18.9 (1) 

2029 Century Park East 118.413 

(OWNR) 43rd Floor 

Los Angeles 34.058 (3) 19.5 320 .03 

2049 Century Park East 118.412 Up .06 

(OWNR) 43rd Floor 230 .05 

Los Angeles 34.062 (3) 19.5 (1) 

10601 Wilshire Blvd. 118.433 

(OWNR) Roof (21) 

Los Angeles 34.061 (3) 18.0 160 .08 

10660 Wilshire Blvd 118.434 Up .02 

(OWNR) Roof (19) 070 .07 

Los Angeles 34.070 (3) 17.9 252 .05 

10751 Wilshire Blvd. 118.438 Up .03 

(OWNR) Roof (12) 162 .05 

47 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time trimer (az) am~ tude (s) 

Long. 0 W} 

28June 1992 San Diego VA Hospital 32.87 (3) (2) (1) 

(Big Bear (VA) Basement 117.23 

earthquake, 

continued) Los Angeles 34.040 (3) 18.7 

19551/2PurdueAve. 118.445 

(USGS) 

Basement (1) 

1st level (1) 

3rd level (1) 

Los Angeles 34.053 

Wadsworth VA Hospital 118.452 

(USGS) 

North Ground Site 06:01.3 15.7 (1) 

South Ground Site 05:58.3 18.8 (1) 

Los Angeles 34.044 (3) (2) (1) 

12121 Wilshire Blvd. 118.467 

(OWNR) Roof (15) 

Jensen Filter Plant 34.312 (3) 20.3 

Balboa Park 118.496 

(MWD) 

Administration Building (1) 

Basement 

Generator Building (1) 

Reservoir Roof (1) 

28June1992 Forest Falls 34.088 [06:15.6] [2.3] 300 .03 

1506G.m.t. Post Office 116.919 Up .02 

Southern Calif. (USGS) 210 .08 

Epicenters and 

magnitudes unknown [06:59.1] [2.8] 300 .12 0.1 

Up .09 

210 .13 0.2 

28June 1992 Forest Falls 34.088 08:10.9 (2) (1) 

1508G.m.t. Post Office 116.919 

Southern Calif. (USGS) 

Epicenter and 

magnitude unknown 

48 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continue,J. 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN tirre ~er (az) am~ tude (s) 

Long. 0 W} 

28June1992 Forest Falls 34.088 11:40.3 1.9 {1) 

1511 G.m.t. Post Office 116.919 

Southern Calif. (USGS) 

Epicenter and 

magnitude unknown 

28June1992 Forest Falls 34.088 17:13.0 2.0 (1) 

1517G.m.t. Post Office 116.919 

Southern Calif. (USGS) 

Epicenter and 

magnitude unknown 

28June 1992 Forest Falls 34.088 18:40.6 {2) (1) 

1518G.m.t. Post Office 116.919 

Southern Calif. (USGS) 

Epicenter and 

magnitude unknown 

28June1992 Forest Falls 34.088 04:47.1 1.2 (1) 

1604G.m.t. Post Office 116.919 

Southern Calif. (USGS) 

Epicenter and 

magnitude unknown 

28June 1992 Highland Fire Station 34.136 01:37.2 3.4 {1) 

1701:31.9 G.m.t. (USGS) 117.213 

Southern Calif. 

34.178N, 116.922W Mentone Fire Station 34.067 01:36.4 {1) 

Magnitude 4.7 ML (USGS) 117.117 

San Bernardino Array 34.183 01:43.0 {2) {1) 

North "F" Street 117.295 

(USGS) 

28June1992 Forest Falls 34.088 02:35.0 2.0 300 .13 0.4 

1702G.m.t. Post Office 116.919 Up .14 0.3 

Southern Calif. (USGS) 210 .13 0.3 

Epicenter and 

magnitude unknown 

28June 1992 Forest Falls 34.088 06:01.7 2.0 300 .11 1 peak 

1705:57.5 G.m.t. Post Office 116.919 Up .03 

Southern Calif. (USGS) 210 .08 

34.256N, 116.912W 

Magnitude 4.6 ML Mentone Fire Station 34.067 06:03.4 3.5 {1) 

(USGS) 117.117 

Note: One additional record1 recovered at Mentone Fire Station. 

49 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S.minus Direction Maximum Duration 

(Owner) (Lat. oN time mffler (az) am~ tude (s) 

Long. 0 W) 

28June1992 Highland Fire Station 34.136 46:03.4 4.5 (1) 

1746 G.m.t. (USGS) 117.213 

Southern Calif. 

Epicenter and 

magnitude unknown 

28 June 1992 - Fun Valley 33.925 (3) 3.0 135 .10 1 peak 

29June1992 Reservoir 361 116.389 Up .05 

Southern Calif. (USGS) 045 05 

Epicenters and 

magnitudes unknown (3) 2.8 135 .08 

Up .05 

045 .05 

29June1992 San Bernardino 34.106 41:31.6 3.6 (1) 

1441:26.0 G.m.t. County Government Center 117.287 

Southern Calif. (USGS) 

34.120N, 116.998W 

Magnitude 4.4 ML San Bernardino Array 34.183 41:35.8 (2) (1) 

North "F" Street 117.295 

(USGS) 

29June 1992 Indio 33.747 01:46.7 2.8 180 .20 1.6 

1601:42.7 G.m.t. Jackson Road 116.214 Up .08 

Southern Calif. (USGS) 090 .19 1.2 

33.876N, 116.267W 

Magnitude 5.2 ML 

29June1992 Los Angeles 34.088 (4) (2) (1) 

2252:16.0 G.m.t. Montecito Drive 118.201 

Southern Calif. (USGS) 

34.161N, 118.168W 

Magnitude 3.9 ML 

30June1992 Forest Falls 34.088 22:58.2 2.7 (1) 

2122:54.4 G.m.t. Post Office 116.919 

Southern Calif. (USGS) 

34.130N, 116.734W 

Magnitude 4.8 ML Cabazon 33.918 22:59.4 5.3 (1) 

Post Office 116.782 

(USGS) 

30June1992 Forest Falls 34.088 49:01.9 1.2 300 .09 

2149:00.2 G.m.t. Post Office 116.919 Up .07 

Southern Calif. (USGS) 210 .09 

34.085N, 116.989W 

Magnitude 4.4ML 

50 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN tiire ~er (az) ~tude (s) Long. OW) 

29 June 1992- Fun Valley 33.925 (3) (2) 135 .08 

!July 1992 Reservoir 361 116.389 Up .05 

Southern Calif. (USGS) 045 .09 

Epicenters and 

magnitudes unknown (3) 1.2 135 .07 

Up .06 

045 .08 

Note: Three additional records1 recovered at Fun Valley Reservoir 361. 

Morongo Valley 34.048 (3) 2.6 135 .15 1 peak 

Fire Station Up .09 

045 .12 0.3 

Note: Five additional records1 recovered at Morongo Valley Fire Station. 

North Palm Springs 33.924 (3) 3.6 180 .05 

Fire Station 116.543 Up .03 

(USGS) 090 .03 

(3) 3.5 180 .11 1 peak 

Up .04 

090 .06 

Note: Three additional records1 recovered at North Palm Springs Fire Station. 

!July 1992 Forest Falls 34.088 14:28.4 1.1 (1) 

0014:26.8 G.m.t. Post Office 116.919 

Southern Calif. (USGS) 

34.081N, 116.989W 

Magnitude 3.6 ML 

!July 1992 Forest Falls 34.088 43:57.0 2.2 (1) 

0443:53.0 G.m.t. Post Office 116.919 

Southern Calif. (USGS) 

34.115N, 116.742W 

Magnitude 3.2 ML 

!July 1992 Morongo Valley 34.048 40:43.3 (2) (1) 

0740:29.8 G.m.t. Fire Station 116.577 

Southern Calif. (USGS) 

34.332N, 116.462W 

Magnitude 5.4 ML 

1July1992 Forest Falls 34.088 45:56.3 (2) (1) 

1745:45.5G.m.t. Post Office 116.919 

Southern Calif. (USGS) 

34.284N, 116.728W 

Magnitude 4.1 ML 

51 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger 8-minus Direction MaximUll' Duration 

(Owner) (Lat. oN time trimer (az) am~ tudE' (s) 

Long. 0 W} 

7 January 1992- Salton Sea 33.18 (3) 0.8 315 .04 

2July 1992 Wildlife Refuge 115.62 Up .02 

Southern Calif. (USGS) 225 .09 

Epicenters and 

magnitudes unknown Note: Two additional records1 recovered at Salton Sea Wildlife Refuge. 

29 June 1992- Whitewater Canyon 33.989 (3) 2.6 270 .12 0.2 

2July 1992 Trout Farm 116.655 Up .08 

Southern Calif. (USGS) 180 .08 

Epicenters and 

magnitudes unknown Note: Three additional records1 recovered at Whitewater Canyon Trout Farm. 

2July 1992 Mentone 34.067 (3) (2) (1) 

0331:18.1 G.m.t. Fire Station 117.117 

Southern Calif. (USGS) 

34.032N, 117.120W 

Magnitude 3.1 ML Note: Two additional records1 recovered at Mentone fire station. 

2July 1992 Forest Falls 34.088 56:28.2 0.8 (1) 

0756:26.3 G.m.t. Post Office 116.919 

Southern Calif. (USGS) 

34.138N, 116.856W 

Magnitude 3.6 ML 

3July 1992 Forest Falls 34.088 15:54.2 2.8 (1) 

0415:50.3 G.m.t. Post Office 116.919 

Southern Calif. (USGS) 

34.210N, 116.771W 

Magnitude 3.6 ML 

6July 1992 Morongo Valley 34.048 35:36.4 2.5 (1) 

1135:33.3 G.m.t. Fire Station 116.577 

Southern Calif. (USGS) 

34.093N, 116.446W 

Magnitude 3.9 ML Note: Two additional records1 recovered at Morongo Valley Fire Station. 

6July 1992 Morongo Valley 34.048 41:44.6 (2) (1) 

1941:37.8 G.m.t. Fire Station 116.577 

Southern Calif. (USGS) 

34.082N, 116.378W 

Magnitude 4.4 ML Note: Two additional records1 recovered at Morongo Valley Fire Station. 

30 June 1992- San Bernardino Array 34.080 (3) 1.1 360 .12 1 peak 

22July 1992 Mill Creek Ranger Station 117.114 Up .09 

Southern Calif. (USGS) 270 .16 0.2 

Epicenters and 

magnitudes unknown Note: Six additional records1 recovered at Mill Creek Ranger Station. 

52 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-continued 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximum Duration 

(Owner) (Lat. oN time trirsr (az) am~ tude (s) 

Long. 0 W} 

1 July 1992- Fun Valley 33.925 {3) {2) 135 .12 0.6 

23July 1992 Reservoir 361 116.389 Up .07 

Southern Calif. (USGS) 045 .09 

Epicenters and 

magnitudes unknown {3) {2) 135 .07 

Up .03 

045 .04 

(3) 0.3 135 .08 

Up .04 

045 .06 

Note: Six additional records1 recovered at Fun Valley Reservoir 361. 

24July 1992 Indio 33.737 14:40.7 3.5 180 .08 

1814:36.2 G.m.t. Jackson Road 116.214 Up .06 

Southern Calif. (USGS) 090 .09 

33.902N, 116.284W 

Magnitude 5.0 ML 

24July 1992 Indio 33.737 [15:30.8] [4.0] (1) 

1815G.m.t. Jackson Road 116.214 

Southern Calif. (USGS) 

Epicenter and 

magnitude unknown 

25July 1992 Forest Falls 34.088 21:42.7 {2) (1) 

0821:40.3 G.m.t. Post Office 116.919 

Southern Calif. (USGS) 

34.111N, 116.919W 

Magnitude 3.4 ML 

28 June 1992- Pasadena 34.149 (3) 0.9 (1) 

30July 1992 535 South Wilson Ave. 118.172 

Southern Calif. (USGS) 

Epicenter and 

magnitude unknown 

15 August 1992 Morongo Valley 34.048 24:21.6 (2) (1) 

0824:14.6 G.m.t. Fire Station 116.577 

Southern Calif. (USGS) 

34.088N, 116.402W 

Magnitude 4.8 ML Note: Two additional records1 recovered at Morongo Valley fire station. 

16 August 1992 Cabazon 33.918 31:05.3 {2) (1) 

0630:59.5 G.m.t. Post Office 116.782 

Southern Calif. (USGS) 

34.030N, 116.677W 

Magnitude 3.8 ML 

53 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continue~"' 

Earthquake Station Name Coordinates Trigger 5-minus Direction Maximum Duration 

(Owner) (Lat. oN time triw (az) am~ tude (s) 

Long. 0 W} 

17 August 1992 Cabazon 33.918 41:58.1 4.0 270 .05 

2041:52.1 Post Ofice 116.782 Up .05 

Southern Calif. (USGS) 180 .04 

34.195N, 116.862W 

Magnitude 5.3 ML San Bernardino Array 34.183 42:05.3 {2) {1) 

5931 North "F" St. 117.295 

(USGS) 

26 July 1992- Forest Falls 34.088 {3) 2.1 300 .24 0.2 

18 August 1992 Post Office 116.919 Up .08 

Southern Calif. (USGS) 210 .17 0.2 

Epicenter and 

magnitude unknown 

18 August 1992 Morongo Valley 34.048 46:46.7 4.2 {1) 

0946:40.7 G.m.t. Fire Station 116.577 

Southern Calif. (USGS) 

34.198N, 116.862W 

Magnitude 4.0 ML Note: Two additional records1 recovered at Morongo Valley fire station. 

Forest Falls 34.088 46:46.2 {2) {1) 

Post Office 116.919 

(USGS) 

Note: One additional record1 recovered at Forest Falls post office. 

3 October 1992 Hilo Hospital, Hawaii 19.72 {4) {2) {1) 

0551:41.4 G.m.t. (USGS) 155.12 

Hawaii 

19.328N, 155.072W Hilo, Hawaii 19.731 {4) {2) 360 .03 

Magnitude 4.3 MD USDA Lab. 155.100 Up .03 

(USGS) 270 .15 0.5 

10 October 1992 Laupahoehoe, Hawaii 19.987 {4) {2) {1) 

0725:26.5 G.m.t. Post Office 155.236 

Hawaii (USGS) 

19.701N, 154.998W 

Magnitude 4.5 MD Waimea, Hawaii 20.026 {4) {2) 360 .03 

Fire Station 155.664 Up .07 

(USGS) 270 .02 

18 October 1992 Bear Valley Station 10 36.532 39:48.7 0.9 310 .06 

0739G.m.t. Webb Residence 121.143 Up .02 

Northern Calif. (USGS) 220 .02 

Epicenter and 

magnitude unknown 

54 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake 

28May 1992-

21 October 1992 

Central Calif. 

Epicenter and 

magnitude unknown 

Station Name Coordinates Trigger S-minus Direction Maximum 

(Owner) (Lat. oN time trimer (az) ~tude Long. 0 W} 

McGee Creek 37.550 (4} 0.9 180 .10 

Mammoth Lakes 118.811 Up .04 

(USGS) (Triaxial) 090 .06 

(4} 0.2 180 .07 

Up .05 

090 .08 

(4} (2} 180 .06 

Up .08 

090 .10 

Note: Three additional recordsl recovered at McGee Creek triaxial station. 

McGee Creek 

Mammoth Lakes 

(USGS) (Multi-channel) 

166m Downhole 

35m Downhole 

1m Downhole 

Surface 

166m Downhole 

35m Downhole 

1m Downhole 

Surface 

166m Downhole 

35m Downhole 

1m Downhole 

Surface 

37.550 

118.811 

(4} 

0.9 

0.9 

0.9 

0.9 

(2} 

0.1 

0.2 

0.2 

(2) 

(2) 

(2) 

(2) 

360 

Up 

270 

360 

Up 

270 

180 

Up 

270 

360 

Up 

270 

(1) 

(1} 

(1} 

.09 

.01 

.06 

(1) 

(1) 

(1) 

.08 

.05 

.07 

(1) 

(1) 

.03 

.05 

.04 

.06 

.08 

.09 

Duration 

(s) 

1 peak 

1 peak 

Note: Three additional records1 recovered at McGee Creek multi-channel statio"\. 

55 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake Station Name Coordinates Trigger S-minus Direction Maximum Duration 

(Owner) (Lat. oN time biMer (az) am~ tude (s) 

Long. 0 W) 

27 November 1992 San Bernardino Array 34.183 01:12.0 {2) {1) 

1600:57.4 G.m.t. 5931 North "F" St. 117.295 

Southern Calif. (USGS) 

34.340N, 116.900W 

Magnitude 5.3 ML Mentone 34.067 01:12.8 (2) (1) 

Fire Station 117.117 

(USGS) 

17 June 1992- Bear Valley Station 12 36.658 {3) 0.9 (1) 

3 December 1992 Williams Ranch 121.249 

Northern Calif. (USGS) 

Epicenter and 

magnitude unknown 

29 June 1992- Thousand Palms 33.82 {3) 2.1 135 .07 

16 December 1992 Post Office 116.40 Up .03 

Southern Calif. (USGS) 045 .05 

Epicenters and 

magnitudes unknown Note: Four additional records1 recovered at Thousand Palms post office. 

1 July 1992- North Palm Springs 33.924 {3) 3.0 180 .09 

16 December 1992 (USGS) 116.543 Up .04 

Southern Calif. 090 .09 

Epicenters and 

magnitudes unknown Note: Six additional records1 recovered at North Palm Springs. 

22July 1992- Whitewater Canyon 33.989 {3) 2.6 270 .05 

16 December 1992 Trout Farm 116.655 Up .03 

Southern Calif. (USGS) 180 .04 

Epicenters and 

magnitudes unknown {3) 3.8 270 .07 

Up .03 

180 .06 

Note: Ten additional records1 recovered at Whitewater Canyon Trout Farm. 

23 July 1992- Fun Valley 33.925 {3) 1.3 135 .11 0.3 

16 December 1992 Reservoir 361 116.389 Up .07 

Southern Calif. (USGS) 045 .11 1 peak 

Epicentes and 

magnitudes unknown {3) 1.3 135 .10 0.5 

Up .09 

045 .13 0.5 

{3) {2) 135 .06 

Up .04 

045 .04 

56 
Table 1. U.S. Geological Survey Accelerograph Records Recovered During 1992-Continued 

Earthquake 

23 July 1992-

16 December 1992 

(continued) 

22 July 1992-

Station Name Coordinates Trigger ~minus Direction 

(Owner) (Lat. oN time trirsr (az) 

Long. 0 W) 

(3) 2.2 135 

Up 

045 

Note: Six additional records1 recovered at Fun Valley Reservoir 361. 

San Bernardino Array 

Mill Creek Ranger Station 

(USGS) 

34.080 

117.114 

(3) 2.4 360 

Up 

270 

Maximum 

amstude 

.13 

.06 

.10 

.09 

.05 

.08 

17 December 1992 

Southern Calif. 

Epicenters and 

magnitudes unknown Note: Three additional records1 recovered at Mill Creek Ranger Station. 

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

2 Questionable or indeterminable. 

3 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 Contains internal clock for event correlation only (accuracy is widely variable). 

tr U.S. CDI1I!HM!Br PlUN'l'IR; Cft'ICE: 1994-683-048/10008 57 

Duration 

(s) 

1 peak 

1 peak 

SELECTED SERIES OF U.S. GEOLOGICAL SURVEY PUBLICATIOr•s 

Periodicals 

Earthquakes & Volcanoes (issued bimonthly). 

Preliminary Determination of Epicenters (issued monthly). 

Technical Books and Reports 

Professional Papers are mainly comprehensive scientific reports of wide and lasting interest and importance to professional 

scientists and engineers. Included are reports on the results of 

resource studies and of topographic, hydrologic, and geologic investigations. They also include collections of related papers addressing 

different aspects of a single scientific topic. 

Bulletins contain significant data and interpretations that are of 

lasting scientific interest but are generally more limited in scope or 

geographic coverage than Professional Papers. They include the 

results of resource studies and of geologic and topographic investigations, as well as collections of short papers related to a specific topic. 

Water-Supply Papers are comprehensive reports that present 

significant interpretive results of hydrologic investigations of wide 

interest to professional geologists, hydrologists, and engineers. The 

series covers investigations in all phases of hydrology, including 

hydrogeology, availability of water, quality of water, and use of 

water. 

Circulars present administrative information or important scientific information of wide popular interest in a format designed for 

distribution at no cost to the public. Information is usually of shortterm interest. 

Water-Resource Investigations Reports are papers of an interpretive nature made available to the public outside the formal USGS 

publications series. Copies are reproduced on request unlike formal 

USGS publications, and they are also available for public inspection 

at depositories indicated in USGS catalogs. 

Open-File Reports include unpublished manuscript reports, maps, 

and other material that are made available for public consultation at 

depositories. They are a nonpermanent form of publication that may 

be cited in other publications as sources of information. 

Maps 

Geologic Quadrangle Maps are multicolor geologic maps on 

topographic bases in 7 1/2- or 15-minute quadrangle formats (scales 

mainly 1:24,000 or 1 :62,500) showing bedrock, surficial, or engineering geology. Maps generally include brief texts; some maps 

include structure and columnar sections only. 

Geophysical Investigations Maps are on topographic or planimetric bases at various scales; they show results of surveys using 

geophysical techniques, such as gravity, magnetic, seismic, or 

radioactivity, which reflect subsurface structures that are of economic or geologic significance. Many maps include correlations 

with the geology. 

Miscellaneous Investigations Series Maps are on planimetric or 

topographic bases of regular and irregular areas at various scales; 

they present a wide variety of format and subject matter. The series 

also includes 7 1/2-minute quadrangle photogeologic maps on planimetric ba-ses that show geology as interpreted from aerial photographs. Series also includes maps of Mars and the Moon. 

Coal Investigations Maps are geologic maps on torographic 

or planimetric bases at various scales showing bedrock or surficial 

geology, stratigraphy, and structural relations in certain coal-resource areas. 

Oil and Gas Investigations Charts show stratigraphic information for certain oil and gas fields and other areas having petroleum 

potential. 

Miscellaneous Field Studies Maps are multi color or black-andwhite maps on topographic or planimetric bases on quacrangle or 

irregular areas at various scales. Pre-1971 maps show bedrock 

geology in relation to specific mining or mineral-deposit problems; 

post-1971 maps are primarily black-and-white maps o, various 

subjects, such as environmental studies or wilderness mineral investigations. 

Hydrologic Investigations Atlases are multicolor or black-andwhite maps on topographic or planimetric bases presenting a wide 

range of geohydrologic data of both regular and irregular areas; 

principal scale is 1:24,000, and regional studies are at 1 :250,000 scale 

or smaller. 

Catalogs 

Permanent catalogs, as well as some others, giving comprehensive listings of U.S. Geological Survey publications are available under the conditions indicated below from the U.S. Geological 

Survey, Books and Open-File Reports Sales, Federal Ce.,ter, Box 

25286, Denver, CO 80225. (See latest Price and Availability List.) 

"Publications of the Geological Survey, 1879-1961" may be 

purchased by mail and over the counter in paperback book form and 

as a set of microfiche. 

"Publications of the Geological Survey, 1962-1970'' may be 

purchased by mail and over the counter in paperback book form and 

as a set of microfiche. 

"Publications of the Geological Survey, 1971-1981" may be 

purchased by mail and over the counter in paperback book form (two 

volumes, publications listing and index) and as a set of m:~rofiche. 

Supplements for 1982, 1983, 1984, 1985, 1986, and for subsequent years since the last permanent catalog may be purchased by 

mail and over the counter in paperback book form. 

State catalogs, "List of U.S. Geological Survey Geo10gic and 

Water-Supply Reports and Maps For (State)," may be purchased by 

mail and over the counter in paperback booklet form only. 

"Price and Availability List of U.S. Geological Survey Publications," issued annually, is available free of charge in raperback 

booklet form only. 

Selected copies of a monthly catalog "New Publications of the 

U.S. Geological Survey" are available free of charge by mail or may 

be obtained over the counter in paperback booklet form only. Those 

wishing a free subscription to the monthly catalog "New Publications 

of the U.S. Geological Survey" should write to the U.S. Geological 

Survey, 582 National Center, Reston, VA 22092. 

Note.--Prices of Government publications listed in older catalogs, 

announcements, and publications may be incorrect. Therefore, the 

prices charged may differ from the prices in catalogs, announcements, and publications.