Southern California Earthquakes in the Past Week

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

July 28, 2000


The time period covered is 5 pm on Thursday, July 20 (PDT) through 5 pm on Thursday, July 27 (PDT). During this period we dectected and analysed 262 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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 7/20  8:18 pm  34 42.4  116 15.1  2.0  39 mi. N of Joshua Tree, CA       
 7/21  1:07 am  32 57.3  117 41.9  2.4  24 mi. SW of Oceanside, CA        
 7/21  3:16 am  34 34.9  116 15.6  2.4  30 mi. N of Joshua Tree, CA       
 7/21  5:12 am  34 30.0  116 30.4  2.1  26 mi. N of Yucca Valley, CA      
 7/21  5:24 am  32 11.4  115  4.5  3.0  41 mi. SE of Calexico, CA         
 7/21  5:25 am  34 41.0  116 18.4  2.0  37 mi. N of Joshua Tree, CA       
 7/21  8:25 am  34 52.1  116 23.7  2.0  32 mi. SW of Baker, CA            
 7/21  2:35 pm  34 34.4  118 43.1  2.0  6 mi. WNW of Castaic Lake dam, CA 
 7/21  4:44 pm  33 45.9  116  8.0  2.2  5 mi. NE of Indio, CA             
 7/21  5:50 pm  33 46.0  116  8.0  2.0  5 mi. NE of Indio, CA             
 7/21  7:17 pm  33 45.8  116  7.8  2.1  5 mi. ENE of Indio, CA            
 7/22  8:25 am  34  7.5  116 55.2  2.0  5 mi. WNW of Mt. San Gorgonio, CA 
 7/22 10:10 am  32 32.3  115 31.3  2.0  9 mi. S of Calexico, CA           
 7/22 11:20 am  34 48.2  116 20.9  2.6  35 mi. SSW of Baker, CA           
 7/22 11:21 am  34 47.6  116 17.6  2.1  34 mi. SSW of Baker, CA           
 7/22  2:03 pm  34 48.5  116 16.0  2.2  33 mi. SSW of Baker, CA           
 7/22  7:09 pm  34 47.4  116 17.7  2.2  35 mi. SSW of Baker, CA           
 7/22  8:09 pm  34 47.8  116 18.0  2.2  34 mi. SSW of Baker, CA           
 7/22  9:55 pm  35  2.5  119  1.5  2.4  5 mi. WNW of Wheeler Ridge, CA    
 7/23  5:32 am  33  9.7  115 59.2  2.5  8 mi. S of Salton City, CA        
 7/23  6:57 am  32 16.3  114 55.2  3.1  34 mi. SSW of Yuma, AZ            
 7/23  8:46 am  32  9.8  115  5.3  2.5  42 mi. SE of Calexico, CA         
 7/23  4:56 pm  34 43.3  116  5.4  3.5  37 mi. S of Baker, CA             
                                        FELT
 7/23  7:25 pm  34 43.3  116  5.4  2.5  37 mi. S of Baker, CA             
 7/23  8:01 pm  34 41.6  115 44.4  2.2  42 mi. NNE of Twentynine Palms, CA
 7/23  8:14 pm  35 44.9  117 44.8  2.7  9 mi. NNW of Ridgecrest, CA       
 7/23 11:00 pm  34 24.4  118 34.5  2.0  1 mi. NW of Valencia, CA          
 7/23 11:32 pm  34 37.1  116 14.2  2.6  33 mi. N of Joshua Tree, CA       
 7/24  8:44 am  34 11.0  116 48.9  2.5  5 mi. N of Mt. San Gorgonio, CA   
 7/24  7:37 pm  34 17.4  116 52.1  2.4  1 mi. NNW of Big Bear City, CA    
 7/24  8:24 pm  34 40.8  116 17.8  2.0  37 mi. N of Joshua Tree, CA       
 7/24 11:07 pm  33 11.5  115 33.6  2.6  4 mi. SW of Niland, CA            
 7/25 12:35 am  34 47.9  116 20.8  2.0  35 mi. SSW of Baker, CA           
 7/25  5:15 am  32 34.6  115 17.9  2.0  13 mi. ESE of Calexico, CA        
 7/25  6:29 am  33 27.5  116 35.4  2.1  8 mi. SE of Anza, CA              
 7/25  7:19 am  32 25.8  115 17.4  2.3  20 mi. SE of Calexico, CA         
 7/25  8:36 am  33 52.6  117 48.6  2.0  Under Yorba Linda, CA             
 7/25  2:15 pm  35 45.0  117 44.8  2.3  9 mi. NNW of Ridgecrest, CA       
 7/25  2:19 pm  34 14.1  117 40.1  2.2  3 mi. SSW of Mt. Baldy, CA        
 7/25  4:43 pm  34 41.4  116 18.5  2.0  38 mi. N of Joshua Tree, CA       
 7/25  5:20 pm  34 41.6  116 19.0  2.0  38 mi. N of Joshua Tree, CA       
 7/25  8:01 pm  32  9.3  115  6.8  3.8  41 mi. SSE of Calexico, CA        
 7/25  9:38 pm  34 41.2  116 17.9  2.0  38 mi. N of Joshua Tree, CA       
 7/26  2:27 am  32 11.0  115  4.7  2.8  41 mi. SE of Calexico, CA         
 7/26  9:58 am  34 39.4  116 17.2  2.2  35 mi. N of Joshua Tree, CA       
 7/26 10:30 am  34 42.1  116 14.3  2.1  39 mi. N of Joshua Tree, CA       
 7/26 11:19 am  32 11.0  115  4.7  2.7  41 mi. SE of Calexico, CA         
 7/26  2:08 pm  34 26.2  116 15.0  2.0  21 mi. N of Joshua Tree, CA       
 7/26  5:53 pm  34  3.0  117 15.3  2.2  Under Loma Linda, CA              
 7/26  6:59 pm  33 55.7  116  2.9  2.2  14 mi. S of Twentynine Palms, CA  
 7/27  8:53 am  34 43.1  116  5.3  2.7  37 mi. S of Baker, CA             
 7/27 11:39 am  35  8.3  116 31.1  2.4  25 mi. SE of Goldstone Lake, CA   
 7/27 12:40 pm  34 50.3  118 55.2  2.0  1 mi. NE of Frazier Park, CA      
 7/27  1:18 pm  36  5.0  117 38.7  2.0  17 mi. E of Coso Junction, CA     
 7/27  2:47 pm  33 50.0  116 53.0  2.0  6 mi. S of Banning, CA            
 7/27  4:15 pm  33  3.5  115 52.3  2.0  16 mi. SSE of Salton City, CA     
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