Southern California Earthquakes in the Past Week

Kate Hutton , Seismological Laboratory
Lucy Jones, U. S. Geological Survey
California Institute of Technology

May 22, 1998


The time period covered is 5 pm on Thursday, May 15 through 5 pm on Thursday, May 21. During this period, we detected and analysed 169 earthquakes. Click here to see a map.

The table below lists the quakes during the past week that were M2.0 or larger in the central part of the coverage area. In the perepheral areas, quakes larger than M2.5 are listed. Times are local times; if you want Greenwich Mean Time, add 7 hrs to the Pacific Daylight Time or 8 hrs to the Pacific Standard Time listed.

Date  Time(PDT) Lat.     Long.     Mag. Descriptive location
-----------------------------------------------------------
 5/14 10:34 pm  36  4.6  117 38.0  2.7  17 mi. E of Coso Junction, CA
 5/15  8:42 am  33 25.0  117  1.7  2.3  10 mi. WNW of Palomar Observatory, CA
 5/15  3:46 pm  36  4.7  117 37.2  2.5  18 mi. E of Coso Junction, CA
 5/16  4:33 am  34 37.0  116 39.4  2.4  20 mi. NE of Lucerne Valley, CA
 5/18  1:56 am  34 35.0  116 35.3  2.1  22 mi. ENE of Lucerne Valley, CA
 5/18 11:11 am  33 14.3  116 15.0  2.9  7 mi. E of Borrego Springs, CA
 5/18 11:12 am  33 14.7  116 14.8  2.0  7 mi. E of Borrego Springs, CA
 5/18  1:45 pm  34 22.1  116 28.3  2.1  17 mi. N of Yucca Valley, CA
 5/18  5:17 pm  35 47.6  117 38.2  2.0  11 mi. N of Ridgecrest, CA
 5/19  1:51 am  34 22.0  116 28.2  2.2  17 mi. N of Yucca Valley, CA
 5/19  8:12 am  34 18.6  116 26.2  2.2  13 mi. N of Yucca Valley, CA
 5/19  5:25 pm  33 39.3  116 45.3  2.6  6 mi. SSW of Idyllwild, CA
 5/19  8:02 pm  34 59.7  116 57.5  2.4  8 mi. NNE of Barstow, CA
 5/19 11:08 pm  34 15.1  118 39.6  2.0  3 mi. SE  of Simi Valley, CA
 5/20 12:11 am  36  4.9  117 50.1  2.0  6 mi. ENE of Coso Junction, CA
 5/20  4:40 am  36  0.9  117 46.1  2.5  10 mi. ESE of Coso Junction, CA
 5/20  5:46 pm  34  4.8  117 17.4  2.2  1 mi. S of San Bernardino, CA
 5/20  8:16 pm  33 55.5  119 37.9  2.3  9 mi. SW of Santa Cruz Is., CA 
 5/21  3:54 am  34 37.7  116 39.1  2.3  21 mi. NE of Lucerne Valley, CA
 5/21  4:14 am  36  0.7  117 25.3  2.1  17 mi. N of Trona, CA