Southern California Earthquakes in the Past Week

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

May 5, 2000


The time period covered is 5 pm on Thursday, April 27 (PST) through 5 pm on Thursday, May 4 (PST). During this period we dectected and analysed 344 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.

Date  Time      Lat.     Long.     Mag. Descriptive location
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 4/27 11:37 pm  34 17.5  116  4.5  2.4  10 mi. N of Twentynine Palms, CA 
 4/28 12:05 am  34 35.0  116 17.1  2.4  30 mi. N of Joshua Tree, CA      
 4/28  5:21 am  36 33.8  117 48.5  2.2  14 mi. E of Lone Pine, CA        
 4/28  7:16 am  36  4.5  119 37.8  2.4  25 mi. SW  of Visalia, CA        
 4/28  9:06 am  34 41.3  116 18.7  2.2  38 mi. N of Joshua Tree, CA      
 4/28 11:04 am  34 46.2  116 18.3  2.4  36 mi. SSW of Baker, CA          
 4/28  1:10 pm  36  4.9  117 36.4  2.5  19 mi. E of Coso Junction, CA    
 4/28  4:14 pm  36  0.4  117 52.5  2.0  4 mi. ESE of Coso Junction, CA   
 4/28  5:32 pm  34 48.0  116 22.0  2.3  36 mi. SSW of Baker, CA          
 4/28  5:52 pm  36  1.3  117 45.8  2.0  10 mi. E of Coso Junction, CA    
 4/28 10:30 pm  33 51.7  115 36.8  2.0  7 mi. W of Eagle Mtn., CA        
 4/28 10:30 pm  33 50.8  115 36.9  2.0  7 mi. W of Eagle Mtn., CA        
 4/29 10:05 am  35 47.1  120 20.9  3.0  5 mi. NNW of Cholame, CA         
 4/29  3:14 pm  34 42.0  116 16.7  2.0  38 mi. N of Joshua Tree, CA      
 4/29  7:09 pm  33 12.9  117 46.8  2.2  17 mi. SSW of Dana Point, CA     
 4/29  8:05 pm  36  0.4  117 53.0  2.2  4 mi. SE of Coso Junction, CA    
 4/30  1:51 am  33 24.4  116 28.4  2.1  11 mi. NNW of Borrego Springs, CA
 4/30  2:50 am  32 11.2  115  4.2  2.7  41 mi. SE of Calexico, CA        
 4/30 11:27 am  34 21.5  116  7.9  2.1  15 mi. NNW of Twentynine Palms, CA
 4/30  1:34 pm  34 47.0  116 16.5  2.1  35 mi. SSW of Baker, CA           
 4/30  6:15 pm  32 12.6  115  3.6  2.8  40 mi. SE of Calexico, CA         
 4/30 11:55 pm  34 51.2  116 24.4  2.0  34 mi. SSW of Baker, CA           
 5/1   1:59 am  34 24.9  116 30.6  2.1  20 mi. N of Yucca Valley, CA      
 5/1   2:15 am  32  8.7  115  4.1  2.8  43 mi. SE of Calexico, CA         
 5/1   2:36 am  32  9.3  115  4.9  2.7  42 mi. SE of Calexico, CA         
 5/1   2:41 am  32 11.6  115  3.8  2.6  41 mi. SE of Calexico, CA         
 5/1   3:28 am  32  9.8  115  4.3  3.0  42 mi. SE of Calexico, CA         
 5/1   4:47 am  33 10.8  115 36.0  2.0  2 mi. ENE of Obsidian Butte, CA   
 5/1   7:47 am  33 43.6  116 51.6  2.4  6 mi. ESE of Hemet, CA            
 5/1   7:53 am  34 15.5  118 32.2  2.1  1 mi. N of Northridge, CA         
 5/1   3:04 pm  32 45.4  118 15.1  2.7  6 mi. SE of San Clemente Is., CA 
 5/1   9:49 pm  32 42.9  116  2.6  2.1  3 mi. WSW of Ocotillo, CA        
 5/1   9:59 pm  32 10.3  115  4.3  3.1  42 mi. SE of Calexico, CA        
 5/1  11:23 pm  34 20.2  116 49.9  2.0  5 mi. NNE of Big Bear City, CA   
 5/1  11:45 pm  32  7.8  115  6.6  4.3  43 mi. SSE of Calexico, CA            
                                        FELT in Imperial Valley
 5/1  11:49 pm  31 53.5  115  5.5  3.2  58 mi. SSE of Calexico, CA            
 5/1  11:52 pm  32  9.5  115  5.3  2.5  42 mi. SE of Calexico, CA        
 5/2  12:05 am  32  9.9  115  3.7  2.4  42 mi. SE  of Calexico, CA            
 5/2  12:06 am  32  8.6  115  7.6  3.7  42 mi. SSE of Calexico, CA       
 5/2  12:16 am  32  9.6  115  7.8  4.2  41 mi. SSE of Calexico, CA            
                                        FELT in Imperial Valley
 5/2  12:52 am  32  9.4  115  4.7  2.7  42 mi. SE of Calexico, CA        
 5/2   1:09 am  32  7.7  115  4.6  2.5  44 mi. SSE of Calexico, CA       
 5/2   1:26 am  32  8.6  115  4.9  2.6  43 mi. SSE of Calexico, CA       
 5/2   1:31 am  32  8.6  115  5.3  3.0  43 mi. SSE of Calexico, CA       
 5/2   1:50 am  32 10.4  115  5.7  2.5  41 mi. SE of Calexico, CA        
 5/2   2:02 am  34 34.0  116 14.4  2.1  29 mi. N of Joshua Tree, CA      
 5/2   2:13 am  32  9.4  115  4.1  2.6  43 mi. SE of Calexico, CA        
 5/2   2:49 am  32 11.2  115  3.5  3.0  41 mi. SE of Calexico, CA        
 5/2   3:15 am  32  8.5  115  5.8  2.5  43 mi. SSE of Calexico, CA       
 5/2   3:33 am  32  9.3  115  5.2  2.8  42 mi. SE of Calexico, CA        
 5/2   4:33 am  32 10.2  115  4.6  2.5  42 mi. SE of Calexico, CA        
 5/2   5:03 am  32  9.7  115  4.7  2.8  42 mi. SE of Calexico, CA        
 5/2   6:03 am  32 12.8  115  5.0  2.9  39 mi. SE of Calexico, CA        
 5/2   8:33 am  33  9.7  115 35.3  2.0  2 mi. ESE of Obsidian Butte, CA  
 5/2   8:44 am  33 10.5  115 35.6  2.8  2 mi. E of Obsidian Butte, CA    
 5/2   9:16 am  32 11.6  115  4.1  3.0  41 mi. SE of Calexico, CA        
 5/2   9:19 am  32  7.9  115  4.8  2.6  44 mi. SSE of Calexico, CA       
 5/2  12:36 pm  32  6.0  115  3.9  2.6  46 mi. SSE of Calexico, CA       
 5/2   2:24 pm  32  9.9  115  5.3  3.1  42 mi. SE of Calexico, CA        
 5/2   2:38 pm  32  8.6  115  4.8  2.9  43 mi. SE of Calexico, CA        
 5/3  12:31 am  34 35.2  116 16.1  2.2  31 mi. N of Joshua Tree, CA      
 5/3  12:47 am  34 41.2  116 18.7  2.6  38 mi. N of Joshua Tree, CA      
 5/3   1:12 am  34 30.8  116 16.1  2.9  26 mi. N of Joshua Tree, CA      
 5/3   2:59 am  34 30.7  116 15.9  2.0  26 mi. N of Joshua Tree, CA      
 5/3   4:28 am  32  8.7  115  4.1  2.6  43 mi. SE of Calexico, CA        
 5/3   4:42 am  32 10.9  115  5.6  3.3  40 mi. SE of Calexico, CA        
 5/3   7:54 am  32  0.8  116 51.8  3.0  38 mi. SSE of San Ysidro, CA     
 5/3  12:58 pm  32  8.6  115  4.9  2.6  43 mi. SSE of Calexico, CA       
 5/3   2:28 pm  35  5.6  118 18.7  3.0  8 mi. ESE of Tehachapi, CA       
 5/3   4:31 pm  34 26.8  116 12.6  2.2  22 mi. NNE of Joshua Tree, CA    
 5/3   7:02 pm  32 10.8  115  5.8  2.7  40 mi. SE of Calexico, CA        
 5/3  11:22 pm  32  8.9  115  4.0  2.8  43 mi. SE of Calexico, CA        
 5/3  11:26 pm  32 11.0  115  3.9  2.8  41 mi. SE of Calexico, CA        
 5/4   1:12 am  32 11.2  115  3.8  3.3  41 mi. SE of Calexico, CA        
 5/4   6:49 am  34 20.2  116  4.8  2.0  13 mi. N  of Twentynine Palms, CA
 5/4  10:01 am  34  2.7  117 15.5  2.8  Under Loma Linda, CA                
 5/4  12:53 pm  33 56.9  117 12.2  2.7  7 mi. SSW of Redlands, CA        
 5/4   3:02 pm  32  9.2  115  4.6  2.8  43 mi. SE of Calexico, CA        
 5/4   3:13 pm  32 11.3  115  4.7  2.5  41 mi. SE of Calexico, CA        
 5/4   3:21 pm  36 29.2  117 36.6  2.1  26 mi. ENE of Olancha, CA        
 5/4   4:33 pm  33 43.9  116 17.6  2.0  4 mi. WNW of Indio, CA           
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