Southern California Earthquakes in the Past Week

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

September 25, 1998

The time period covered is 5 pm on Thursday, September 17 through 5 pm on Thursday, September 24. During this period, we detected and analysed 177 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
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 9/17  8:02 pm  34 15.4  116 27.3  2.5  9 mi. N of Yucca Valley, CA
 9/18  2:48 am  34  0.0  117 12.2  2.0  4 mi. SSW of Redlands, CA
 9/18  5:26 am  34  8.6  116 50.3  2.1  3 mi. NNW of Mt. San Gorgonio, CA
 9/19 12:43 am  35 47.3  119 54.3  2.7  22 mi. ENE of Cholame, CA
 9/19  2:49 am  32 27.7  115 25.5  2.7  14 mi. SSE of Calexico, CA
 9/19  6:27 am  35 46.8  119 53.1  2.7  23 mi. E of Cholame, CA
 9/19  2:34 pm  36  4.0  117 52.1  2.1  4 mi. ENE of Coso Junction, CA
 9/20  1:33 am  34  9.5  116 26.3  2.0  2 mi. N of Yucca Valley, CA
 9/20  2:45 am  35 44.4  119 50.5  2.5  28 mi. NNE of Simmler, CA
 9/21  1:37 am  32 39.3  118  7.2  2.3  17 mi. SE of San Clemente Is., CA 
 9/21  3:58 am  34 18.6  116 55.2  2.1  4 mi. N of town of Big Bear Lake, CA
 9/21  6:33 am  32 38.7  118  2.4  2.8  21 mi. SE of San Clemente Is., CA 
 9/21  6:41 am  34 12.4  117 24.5  2.0  1 mi. SSW of Devore, CA
 9/22  7:17 am  35 41.2  118 27.7  2.2  3 mi. N of town of Lake Isabella, CA
 9/22  8:27 am  32 34.1  117 17.3  2.3  12 mi. SW of San Diego, CA
 9/22 12:27 pm  33 29.9  116 31.3  2.1  9 mi. ESE of Anza, CA
 9/22 11:27 pm  36 57.0  117 30.1  2.1  30 mi. NW of Stovepipe Wells, CA
 9/22 11:28 pm  36 57.3  117 29.8  2.9  30 mi. NW of Stovepipe Wells, CA
 9/23  8:34 am  34 22.5  117 39.0  2.7  1 mi. NW of Wrightwood, CA
 9/23  2:47 pm  34  6.6  116 55.2  2.5  5 mi. W of Mt. San Gorgonio, CA
 9/23  8:58 pm  36 43.8  118  4.3  2.8  8 mi. N of Lone Pine, CA
 9/24 12:05 am  33 12.0  116 23.6  2.1  3 mi. SSW of Borrego Springs, CA
 9/24  4:41 am  34  6.6  118 35.6  2.6  4 mi. S of Woodland Hills, CA; FELT?
 9/24  1:23 pm  35 25.4  118 21.6  2.1  15 mi. SSE of town of Lake Isabella, CA