Southern California Earthquakes in the Past Week

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

August 2, 2002


The time period covered is 5 pm on Thursday, July 25 (PDT) through 5 pm on Thursday, August 1 (PDT). During this period we dectected and analysed 162 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. 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.


          Mag. Local Date Local Time Lat.      Long.    Depth  Descriptive location

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13692920  2.4  2002/07/25 22:13:41 33 10.8 N 116  3.0 W  4.6    9 km ( 5 mi) ENE  of Ocotillo Wells, CA  
13692928  2.9  2002/07/26 00:17:56 34 44.6 N 119  1.6 W  8.0   11 km ( 7 mi) SW   of Frazier Park, CA  
               FELT in Frazier Park & Gorman
13693056  2.7  2002/07/26 17:08:57 34  2.5 N 118 59.1 W 16.9    4 km ( 3 mi) W    of Leo Carrillo State Beach, CA  
               FELT in Newbury Park
13693112  2.2  2002/07/26 23:22:10 34 51.9 N 116 23.7 W  3.9   53 km (33 mi) SSW  of Baker, CA  
13693312  2.5  2002/07/27 22:47:14 34  9.8 N 117 26.1 W  8.1    6 km ( 4 mi) N    of Fontana, CA  
               FELT in Rancho Cucamonga, Rialto & Alta Loma
13693392  2.0  2002/07/28 15:29:00 34  2.5 N 118 59.8 W 16.2    6 km ( 3 mi) W    of Leo Carrillo State Beach, CA  
13695432  2.5  2002/07/28 18:02:20 36  1.2 N 117 48.0 W  1.8   14 km ( 8 mi) ESE  of Coso Junction, CA  
13695444  2.2  2002/07/28 19:30:34 32 14.8 N 115  3.1 W  7.0   63 km (39 mi) SE   of Calexico, CA  
13695516  2.3  2002/07/29 10:04:20 32 19.8 N 115 17.8 W  7.0   42 km (26 mi) SSE  of Calexico, CA  
13695540  2.9  2002/07/29 10:37:12 32 54.9 N 116 14.6 W  8.7   28 km (17 mi) SSW  of Ocotillo Wells, CA  
 9804693  2.3  2002/07/29 16:47:01 34 21.8 N 118 40.5 W 15.1   10 km ( 6 mi) NNE  of Simi Valley, CA  
 9804809  2.1  2002/07/30 10:07:02 33 52.8 N 116 52.4 W 15.9    5 km ( 3 mi) S    of Banning, CA  
 9804805  2.1  2002/07/30 10:07:02 33 52.6 N 116 52.1 W 16.2    6 km ( 3 mi) S    of Banning, CA  
 9804965  2.4  2002/07/30 20:28:15 34 52.5 N 116 21.1 W  2.9   50 km (31 mi) SSW  of Baker, CA  
 9805021  3.7  2002/07/31 01:31:47 34 34.3 N 116 26.5 W  3.0   48 km (30 mi) ENE  of Lucerne Valley, CA  
               FELT in Big Bear, Lake Arrowhead areas & Twentynine Palms
 9805045  2.4  2002/07/31 04:17:55 32  1.5 N 116 19.4 W  7.0   85 km (53 mi) SSW  of Ocotillo, CA  
 9805057  2.0  2002/07/31 04:52:05 35 57.6 N 117 57.3 W  5.5    9 km ( 6 mi) S    of Coso Junction, CA  
 9805089  2.7  2002/07/31 08:15:12 35 20.7 N 117 53.5 W  5.3   25 km (16 mi) NNE  of California City, CA  
 9805193  2.0  2002/07/31 12:21:51 33 50.0 N 117 52.1 W  7.0    4 km ( 3 mi) ENE  of Anaheim, CA  
 9805265  2.4  2002/08/01 00:42:12 34 22.0 N 118 39.9 W 12.2   10 km ( 6 mi) WSW  of Valencia, CA  
 9805277  2.1  2002/08/01 03:33:36 34 59.4 N 116 56.6 W  5.3   14 km ( 8 mi) NNE  of Barstow, CA  
 9805329  2.0  2002/08/01 08:54:03 35 46.0 N 117 39.0 W  9.4   16 km (10 mi) N    of Ridgecrest, CA  
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