Southern California Earthquakes in the Past Week

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

April 2, 1999


The time period covered is 4 pm on Thursday, March 25 (PST) through 4 pm on Thursday, April 1 (PST). During this period, we detected and analysed 160 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      Lat.     Long.     Mag. Descriptive location
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 3/25  7:02 pm  32  4.4  115 25.3  2.8  41 mi. S   of Calexico, CA            
 3/25  9:07 pm  32 25.5  115 22.5  2.5  18 mi. SSE of Calexico, CA            
 3/25 10:52 pm  33 43.2  118 49.1  2.0  19 mi. S   of Pt. Dume, CA            
 3/25 11:21 pm  34 21.4  116 28.3  2.1  16 mi. N   of Yucca Valley, CA        
 3/26  7:54 am  32 34.3  115 16.5  2.0  14 mi. ESE of Calexico, CA            
 3/26  9:34 am  32 27.8  116 52.1  2.0  11 mi. ESE of San Ysidro, CA          
 3/26  1:00 pm  32 39.4  115 38.9  2.9  8 mi. W   of Calexico, CA             
 3/26  5:04 pm  32 39.5  115 38.7  2.9  8 mi. W   of Calexico, CA             
 3/26  6:02 pm  32 39.7  115 58.1  2.1  5 mi. SSE of Ocotillo, CA             
 3/26  6:36 pm  34 22.3  116 28.1  2.1  17 mi. N   of Yucca Valley, CA        
 3/27  4:22 am  33 14.2  115 37.2  2.2  4 mi. NNE of Obsidian Butte, CA       
 3/27  7:14 am  36  1.5  117 45.9  2.6  10 mi. E   of Coso Junction, CA       
 3/27  7:58 am  32 26.4  115 13.0  2.7  22 mi. SE  of Calexico, CA            
 3/27 11:59 am  35 34.5  116 50.7  2.0  15 mi. N   of Goldstone Lake, CA      
 3/27  2:51 pm  32 21.0  115 15.4  2.7  26 mi. SSE of Calexico, CA            
 3/27  4:12 pm  33 44.3  117  3.9  3.4  5 mi. ESE of Perris, CA
                                        FELT in Hemet, Corona
 3/27  8:28 pm  34 19.7  116 50.4  2.1  4 mi. N   of Big Bear City, CA        
 3/27 11:35 pm  34 58.5  116 48.7  2.0  13 mi. ENE of Barstow, CA             
 3/28  1:05 am  36 32.8  117 54.8  2.4  9 mi. ESE of Lone Pine, CA            
 3/28  5:38 am  34  1.8  116 21.2  2.5  7 mi. SSW of Joshua Tree, CA          
 3/28  5:56 am  34  7.4  116 23.0  2.4  3 mi. E   of Yucca Valley, CA         
 3/28  5:50 pm  35 16.8  118 53.6  2.7  6 mi. NW  of Arvin, CA                
 3/29  9:49 am  34 19.6  116 50.6  2.5  4 mi. N   of Big Bear City, CA        
 3/29  9:59 am  34 19.8  116 50.4  2.6  4 mi. N   of Big Bear City, CA        
 3/29 10:20 am  34 19.5  116 50.5  2.4  4 mi. N   of Big Bear City, CA        
 3/29 11:00 am  34 19.7  116 50.5  2.4  4 mi. N   of Big Bear City, CA        
 3/29  9:48 pm  33 51.9  118 53.1  2.4  10 mi. SSW of Pt. Dume, CA            
 3/29  9:50 pm  33 52.3  118 54.0  2.3  10 mi. SSW of Pt. Dume, CA            
 3/29 11:18 pm  33 46.7  118 54.6  2.2  16 mi. SSW of Pt. Dume, CA            
 3/30  9:01 am  34 33.6  118 54.3  2.4  11 mi. N   of Fillmore, CA            
 3/30  9:42 am  32  4.6  115 25.1  2.6  41 mi. S   of Calexico, CA            
 3/30 11:21 am  33 52.7  118 52.8  2.3  9 mi. SSW of Pt. Dume, CA             
 3/31  1:00 am  34 37.2  116 36.2  2.3  22 mi. ENE of Lucerne Valley, CA      
 3/31  2:06 am  34 28.7  116 30.2  2.1  25 mi. N   of Yucca Valley, CA        
 3/31  7:24 am  34 22.7  116 27.4  2.6  17 mi. N   of Yucca Valley, CA        
 3/31  8:21 am  35 43.3  118  3.7  2.1  23 mi. SSW of Coso Junction, CA       
 3/31 11:13 am  35 36.2  118 28.0  2.1  2 mi. S   of town of Lake Isabella, CA
 3/31  4:29 pm  34 11.9  119 41.2  2.6  15 mi. S   of downtown Santa Barbara, CA
 3/31  4:49 pm  32 34.5  116  9.8  3.1  14 mi. SW  of Ocotillo, CA         
 3/31  4:54 pm  32 35.4  116  9.9  3.1  14 mi. SW  of Ocotillo, CA         
 3/31  5:05 pm  32 35.0  116  9.7  2.8  14 mi. SW  of Ocotillo, CA         
 3/31  5:08 pm  32 34.7  116  9.5  2.4  14 mi. SW  of Ocotillo, CA         
 3/31  5:47 pm  34 19.6  116 50.3  2.4  4 mi. NNE of Big Bear City, CA     
 3/31 10:33 pm  35 36.4  118 28.3  2.1  2 mi. S   of town of Lake Isabella, CA
 4/1   1:48 am  33 59.3  116 24.1  2.6  5 mi. ENE of Desert Hot Springs, CA
 4/1   5:13 am  32 34.9  116  9.6  2.1  14 mi. SW  of Ocotillo, CA         
 4/1   3:38 pm  35  6.0  118 17.7  2.7  7 mi. WNW of Mojave, CA            
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