Southern California Earthquakes in the Past Week

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

February 1, 2002


The time period covered is 4 pm on Thursday, January 24 (PST) through 4 pm on Thursday, January 31 (PST). During this period we dectected and analysed 257 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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12279548  2.2  2002/01/24 21:12:28 34 39.4 N 116 18.0 W  3.7   58 km (36 mi) N    of Joshua Tree, CA  
12279556  2.4  2002/01/24 21:25:45 32 39.1 N 115 53.9 W  7.4   13 km ( 8 mi) SE   of Ocotillo, CA  
12279568  2.0  2002/01/24 21:57:26 33 20.4 N 115 42.8 W  5.0    2 km ( 1 mi) ESE  of Bombay Beach, CA  
12279592  1.9  2002/01/25 00:53:13 32 24.0 N 115  5.6 W  7.0   48 km (30 mi) SE   of Calexico, CA  
12287432  2.4  2002/01/25 09:48:33 33 30.3 N 116 27.1 W  4.6   21 km (13 mi) ESE  of Anza, CA  
12295460  2.4  2002/01/26 01:08:38 33 21.2 N 116 23.6 W 15.2   11 km ( 7 mi) N    of Borrego Springs, CA  
12295492  2.5  2002/01/26 03:35:18 32 16.7 N 115 36.2 W  7.0   45 km (28 mi) SSW  of Calexico, CA  
12311444  1.9  2002/01/26 17:18:03 32 56.2 N 116 18.5 W  7.0   28 km (18 mi) SW   of Ocotillo Wells, CA  
12311484  2.5  2002/01/27 00:31:38 32  5.2 N 114 59.2 W  7.0   76 km (47 mi) SSW  of Yuma, AZ  
12319564  3.0  2002/01/28 08:30:17 36  2.6 N 117 52.6 W  3.3    6 km ( 4 mi) E    of Coso Junction, CA  
 9753425  2.2  2002/01/28 15:10:23 34 33.2 N 116 15.8 W  5.2   46 km (29 mi) N    of Joshua Tree, CA  
 9753481  3.1  2002/01/28 21:53:08 34 21.2 N 118 39.0 W 13.0    9 km ( 6 mi) WSW  of Valencia, CA  
 9753485  4.2  2002/01/28 21:53:28 34 21.7 N 118 39.4 W 14.2    9 km ( 6 mi) WSW  of Valencia, CA  
               FELT from Bakersfield to Orange Co., Edwards AFB, Santa Barbara.  Max intensity MMI IV.
 9753489  3.9  2002/01/28 22:00:39 34 22.2 N 118 40.1 W 14.2   10 km ( 6 mi) WSW  of Valencia, CA  
               FELT from Malibu, South Bay to Antelope Valley.  Max intensity MMI IV.
 9753497  3.8  2002/01/28 22:08:01 34 21.9 N 118 39.9 W 14.4   10 km ( 6 mi) WSW  of Valencia, CA  
               FELT from Malibu to Gorman area.
 9753501  2.8  2002/01/28 22:09:09 34 21.5 N 118 40.1 W 14.9   10 km ( 6 mi) NNE  of Simi Valley, CA  
 9753505  2.8  2002/01/28 22:12:05 34 21.5 N 118 39.9 W 14.2   10 km ( 6 mi) NNE  of Simi Valley, CA  
 9753513  2.3  2002/01/28 22:15:15 34 22.0 N 118 40.0 W 14.0   10 km ( 6 mi) WSW  of Valencia, CA  
 9753545  2.1  2002/01/28 22:20:55 34 21.5 N 118 40.1 W 15.0   10 km ( 6 mi) NNE  of Simi Valley, CA  
 9753549  2.9  2002/01/28 22:26:31 34 21.8 N 118 39.2 W 13.2    9 km ( 6 mi) WSW  of Valencia, CA  
 9753553  2.4  2002/01/28 22:28:13 34 21.7 N 118 39.9 W 15.1   10 km ( 6 mi) WSW  of Valencia, CA  
 9753565  2.0  2002/01/28 22:44:23 34 21.5 N 118 40.5 W 14.4    9 km ( 6 mi) NNE  of Simi Valley, CA  
 9753713  2.4  2002/01/29 02:21:21 34 21.3 N 118 40.2 W 15.2    9 km ( 6 mi) NNE  of Simi Valley, CA  
 9753729  2.1  2002/01/29 02:58:42 34 21.3 N 118 40.9 W 13.3    9 km ( 6 mi) NNE  of Simi Valley, CA  
 9753757  2.8  2002/01/29 04:28:30 34 21.8 N 118 39.8 W 15.1   10 km ( 6 mi) WSW  of Valencia, CA  
 9753761  3.0  2002/01/29 05:18:21 32 13.9 N 117  0.0 W  7.0   36 km (22 mi) S    of San Ysidro, CA  
 9753769  2.2  2002/01/29 05:26:47 34 10.5 N 116 55.3 W 13.6    8 km ( 5 mi) S    of town of Big Bear Lake, CA  
 9753793  2.9  2002/01/29 07:31:27 33 46.9 N 119 27.5 W  7.0   28 km (18 mi) SSE  of Santa Cruz Is. 
 9753805  2.2  2002/01/29 07:40:01 33  0.8 N 116 20.9 W  9.8   24 km (15 mi) ESE  of Julian, CA  
 9753801  2.4  2002/01/29 07:42:14 34 21.4 N 118 39.4 W 14.8   10 km ( 6 mi) WSW  of Valencia, CA  
 9753929  2.7  2002/01/29 11:20:54 34 21.4 N 118 39.9 W 11.8   10 km ( 6 mi) NNE  of Simi Valley, CA  
 9753937  2.1  2002/01/29 11:24:29 34 12.2 N 116 50.0 W  6.9    7 km ( 4 mi) SSE  of Big Bear City, CA  
 9753949  3.6  2002/01/29 12:23:07 34 21.8 N 118 40.0 W 12.6   10 km ( 6 mi) NNE  of Simi Valley, CA  
               FELT from San Fernando, Simi Valleys to Castaic area.  Max intensity MMI IV.
 9753953  2.4  2002/01/29 12:25:11 34 21.5 N 118 39.4 W 13.1   10 km ( 6 mi) WSW  of Valencia, CA  
 9753965  3.1  2002/01/29 12:27:27 34 22.0 N 118 39.7 W 13.1   10 km ( 6 mi) WSW  of Valencia, CA  
               FELT from San Fernando, Simi Valleys to Castaic area.  Max intensity MMI IV.
 9753973  2.2  2002/01/29 12:32:49 34 21.5 N 118 40.4 W 14.8    9 km ( 6 mi) NNE  of Simi Valley, CA  
 9754001  2.5  2002/01/29 13:10:58 34 21.5 N 118 40.4 W 14.2    9 km ( 6 mi) NNE  of Simi Valley, CA  
 9754025  2.2  2002/01/29 15:07:15 34 21.6 N 118 39.4 W 12.6    9 km ( 6 mi) WSW  of Valencia, CA  
 9754041  2.2  2002/01/29 15:28:39 34 22.0 N 118 39.4 W 13.2    9 km ( 6 mi) WSW  of Valencia, CA  
 9754093  2.7  2002/01/29 18:34:44 34 21.6 N 118 39.9 W 13.1   10 km ( 6 mi) NNE  of Simi Valley, CA  
 9754281  2.0  2002/01/29 23:35:25 34 21.9 N 118 39.5 W 12.7    9 km ( 6 mi) WSW  of Valencia, CA  
 9754293  2.2  2002/01/29 23:53:34 34 22.0 N 118 40.6 W 12.9   10 km ( 6 mi) NNE  of Simi Valley, CA  
 9754601  2.0  2002/01/30 04:06:47 33 28.7 N 116 30.0 W 11.2   18 km (11 mi) ESE  of Anza, CA  
 9754685  2.3  2002/01/30 05:46:22 34 21.5 N 118 40.2 W 13.7   10 km ( 6 mi) NNE  of Simi Valley, CA  
 9754849  2.4  2002/01/30 07:06:11 34 40.1 N 116 17.7 W  5.2   59 km (37 mi) N    of Joshua Tree, CA  
 9754861  2.0  2002/01/30 07:43:21 32 25.6 N 115  4.7 W  7.0   47 km (29 mi) SE   of Calexico, CA  
 9754905  1.9  2002/01/30 08:15:35 34 22.0 N 118 40.4 W 15.0   10 km ( 6 mi) NNE  of Simi Valley, CA  
 9754957  2.1  2002/01/30 09:16:45 34  3.8 N 117 17.0 W 16.5    3 km ( 2 mi) WNW  of Loma Linda, CA  
 9755013  3.5  2002/01/30 10:47:57 34 22.0 N 118 39.6 W 12.8    9 km ( 6 mi) WSW  of Valencia, CA  
               FELT from West Side to Ventura to  Antelope Valley.  Max intensity MMI IV.
 9755037  3.0  2002/01/30 10:57:58 34 21.7 N 118 39.7 W 12.3   10 km ( 6 mi) WSW  of Valencia, CA  
               FELT from San Fernando, Simi Valleys to Castaic area.  Max intensity MMI IV.
 9755041  2.2  2002/01/30 11:00:44 34 21.4 N 118 40.8 W 13.5    9 km ( 6 mi) NNE  of Simi Valley, CA  
 9755153  2.0  2002/01/30 12:41:30 34  9.0 N 116 49.5 W 10.6    5 km ( 3 mi) N    of Mt. San Gorgonio, CA  
12339492  2.4  2002/01/30 15:47:11 32 18.2 N 114 57.6 W  7.0   54 km (34 mi) SW   of Yuma, AZ  
12339704  2.2  2002/01/31 07:37:24 33  0.5 N 117 42.7 W  7.0   37 km (23 mi) SW   of Oceanside, CA  
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