Southern California Earthquakes in the Past Week

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

September 28, 2001


The time period covered is 5 pm on Thursday, September 20 (PDT) through 5 pm on Thursday, September 27 (PDT). During this period we dectected and analysed 268 earthquakes. Click here to see a map.

The table below lists the quakes during the past week that were M2.5 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
      -------------------------------------------------------------------------------------------
 9707785  2.9  2001/09/20 18:09:40 32 55.8 N 117 45.4 W  7.0   46 km (28 mi) SW   of Oceanside, CA  
 9707793  2.1  2001/09/20 18:15:52 32 56.6 N 117 45.4 W  7.0   45 km (28 mi) SW   of Oceanside, CA  
 9708025  2.3  2001/09/21 18:51:51 32 46.9 N 115 33.2 W 15.0    1 km ( 1 mi) S    of El Centro, CA  
 9708093  2.1  2001/09/22 05:11:21 34 20.8 N 116 38.6 W  5.6   21 km (13 mi) ENE  of Big Bear City, CA  
 9708257  2.2  2001/09/22 22:16:18 34 16.0 N 116 27.6 W  3.0   16 km (10 mi) N    of Yucca Valley, CA  
 9708281  2.0  2001/09/23 03:29:05 33 58.7 N 116 17.4 W  5.3   18 km (11 mi) S    of Joshua Tree, CA  
 9708321  2.0  2001/09/23 07:47:44 36  0.4 N 117 48.7 W  2.2   13 km ( 8 mi) ESE  of Coso Junction, CA  
 9708333  1.9  2001/09/23 08:03:12 36  0.7 N 117 49.0 W  1.9   12 km ( 8 mi) ESE  of Coso Junction, CA  
 9708341  2.2  2001/09/23 08:27:37 33 12.6 N 115 35.1 W 12.0    6 km ( 4 mi) NE   of Obsidian Butte, CA  
 9708393  3.0  2001/09/23 15:44:32 33 30.5 N 116 30.8 W 15.1   16 km (10 mi) ESE  of Anza, CA  
 9708497  2.5  2001/09/24 04:34:58 34 18.8 N 116 52.0 W  3.7    6 km ( 3 mi) NNW  of Big Bear City, CA  
 9708533  2.3  2001/09/24 08:17:39 33 50.0 N 117 50.4 W 10.3    5 km ( 3 mi) NNE  of Orange, CA  
               Felt in Orange, Fullerton, Anaheim, Anaheim Hills, Placentia
 9708577  2.5  2001/09/24 10:50:17 35 59.7 N 118 20.5 W  5.6   36 km (22 mi) W    of Coso Junction, CA  
11988123  2.0  2001/09/24 11:58:53 35 19.6 N 118 39.9 W  5.3   20 km (12 mi) NE   of Arvin, CA  
 9708645  2.7  2001/09/24 16:02:27 35 23.4 N 120 39.6 W  0.0    5 km ( 3 mi) W    of Santa Margarita, CA  
 9708665  2.1  2001/09/24 20:51:49 36  0.7 N 117 53.1 W  4.7    7 km ( 4 mi) ESE  of Coso Junction, CA  
 9708673  2.0  2001/09/24 21:35:54 33 56.4 N 118 18.8 W 14.8    3 km ( 2 mi) SSE  of Inglewood, CA  
 9708693  2.2  2001/09/24 23:26:03 35 23.8 N 120 41.3 W  0.4    8 km ( 5 mi) W    of Santa Margarita, CA  
 9708697  2.2  2001/09/25 00:47:39 32 20.7 N 115 13.3 W  7.0   44 km (27 mi) SE   of Calexico, CA  
 9708725  2.3  2001/09/25 04:26:18 34 40.4 N 116 17.2 W  8.7   60 km (37 mi) N    of Joshua Tree, CA  
 9708729  3.1  2001/09/25 04:35:14 36  5.3 N 117 53.6 W  0.1    7 km ( 4 mi) NE   of Coso Junction, CA  
 9708813  3.0  2001/09/25 11:34:08 36 26.6 N 117 51.9 W  5.7   22 km (14 mi) NE   of Olancha, CA  
 9708849  2.2  2001/09/25 13:41:01 34 36.9 N 116 14.4 W  4.8   54 km (33 mi) N    of Joshua Tree, CA  
 9708929  2.1  2001/09/25 15:49:34 35 19.6 N 118 39.6 W  5.5   20 km (13 mi) NE   of Arvin, CA  
 9708973  2.0  2001/09/25 22:42:06 34 54.4 N 119  1.2 W 14.4    9 km ( 6 mi) WSW  of Grapevine, CA  
 9708981  2.3  2001/09/25 23:01:15 32 20.4 N 115 15.1 W  7.0   43 km (27 mi) SSE  of Calexico, CA  
 9708989  1.9  2001/09/25 23:14:43 34 15.3 N 116 45.8 W  3.9    8 km ( 5 mi) E    of Big Bear City, CA  
 9709061  2.8  2001/09/26 06:37:55 34 22.3 N 116  8.6 W  5.4   27 km (17 mi) NNW  of Twentynine Palms, CA  
 9709129  2.2  2001/09/26 12:02:40 33 12.5 N 115 35.8 W  2.2    6 km ( 4 mi) NE   of Obsidian Butte, CA  
11992187  2.0  2001/09/26 12:02:47 33 10.7 N 115 35.9 W  0.0    4 km ( 2 mi) ENE  of Obsidian Butte, CA  
11992191  2.2  2001/09/26 12:02:53 33 12.4 N 115 36.0 W  7.0    5 km ( 3 mi) NE   of Obsidian Butte, CA  
 9709145  2.6  2001/09/26 12:07:42 33 11.8 N 115 37.2 W  0.7    3 km ( 2 mi) NNE  of Obsidian Butte, CA  
11992179  2.3  2001/09/26 12:08:49 33 11.2 N 115 36.2 W  4.5    4 km ( 2 mi) ENE  of Obsidian Butte, CA  
 9709149  2.5  2001/09/26 12:12:12 33 11.7 N 115 35.4 W  3.5    5 km ( 3 mi) ENE  of Obsidian Butte, CA  
 9709169  2.3  2001/09/26 13:19:18 33 12.0 N 115 36.2 W  4.0    5 km ( 3 mi) NE   of Obsidian Butte, CA  
 9709213  2.8  2001/09/26 18:49:07 34  6.7 N 118  6.6 W  9.0    1 km ( 1 mi) SSW  of San Marino, CA  
               Felt in San Marino and surrounding communities
 9709273  2.0  2001/09/27 04:27:30 35 20.3 N 118 39.9 W  4.8   21 km (13 mi) NE   of Arvin, CA  
 9709285  2.2  2001/09/27 05:30:53 35 20.5 N 118 41.4 W  5.5   20 km (12 mi) NE   of Arvin, CA  
 9709293  2.1  2001/09/27 06:27:42 36  4.3 N 117 53.5 W  4.6    6 km ( 4 mi) ENE  of Coso Junction, CA  
 9709337  2.8  2001/09/27 12:22:55 32 10.9 N 115 35.6 W  7.0   55 km (34 mi) S    of Calexico, CA  
 9709369  2.1  2001/09/27 14:05:24 36  1.7 N 117 45.7 W  2.9   17 km (10 mi) E    of Coso Junction, CA  
 9709389  2.2  2001/09/27 16:22:30 34 20.1 N 119  9.7 W 13.6   14 km ( 9 mi) ENE  of Ventura, CA  
 9709397  2.2  2001/09/27 16:49:09 36  2.1 N 117 52.8 W  3.1    6 km ( 4 mi) E    of Coso Junction, CA  
        -------------------------------------------------------------------------------------------