Southern California Earthquakes in the Past Week

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

September 1, 2000


The time period covered is 5 pm on Thursday, August 14 (PDT) through 5 pm on Thursday, August 31 (PDT). During this period we dectected and analysed 295 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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 8/24  8:51 pm  34  2.5  117  5.4  2.0  3 mi. W of Yucaipa, CA            
 8/25 10:00 am  34 21.5  116  8.0  2.6  15 mi. NNW of Twentynine Palms, CA
 8/25 11:57 am  35 48.3  118 27.2  2.9  11 mi. N of town of Lake Isabella, CA
                                        FELT in Lake Isabella
 8/25 12:30 pm  34 41.5  115 43.9  2.3  42 mi. NNE of Twentynine Palms, CA
 8/25  1:36 pm  34  0.1  117  1.6  2.0  2 mi. S of Yucaipa, CA            
 8/25 11:21 pm  34 36.6  116 14.1  2.0  33 mi. N of Joshua Tree, CA       
 8/26  3:15 am  32 46.1  115 32.4  2.1  1 mi. SSE of El Centro, CA        
 8/26  8:38 am  34 15.3  116 52.6  2.3  1 mi. WSW of Big Bear City, CA    
 8/26  9:13 am  32 35.8  116  9.2  2.1  13 mi. SW of Ocotillo, CA         
 8/26 11:49 am  34 21.8  116  8.2  2.1  16 mi. NNW of Twentynine Palms, CA
 8/26  1:26 pm  32 12.5  115 13.2  2.5  35 mi. SSE of Calexico, CA        
 8/26  8:35 pm  33 44.8  119 58.8  2.7  15 mi. SSE of Santa Rosa Is., CA  
 8/27  2:22 am  33 48.3  117 36.9  2.0  5 mi. SSW of Corona, CA           
 8/27  3:22 am  33 11.1  115 35.9  2.2  2 mi. ENE of Obsidian Butte, CA   
 8/27  3:23 am  33 11.2  115 35.8  2.0  2 mi. ENE of Obsidian Butte, CA   
 8/27  3:57 am  33 11.5  115 35.7  2.1  2 mi. ENE of Obsidian Butte, CA   
 8/27  3:58 am  33 11.5  115 35.6  2.1  2 mi. ENE of Obsidian Butte, CA   
 8/27  4:08 am  33 11.4  115 35.3  2.0  3 mi. ENE of Obsidian Butte, CA   
 8/27  5:26 am  34 41.5  116 18.6  3.0  38 mi. N of Joshua Tree, CA       
 8/27  7:04 am  36  4.7  117 36.5  2.3  19 mi. E of Coso Junction, CA     
 8/27 12:07 pm  34 16.7  118 34.0  2.0  2 mi. NE of Chatsworth, CA        
 8/27  8:05 pm  33 29.4  116 27.2  2.1  13 mi. ESE of Anza, CA            
 8/27 11:01 pm  34 47.9  116 21.0  3.0  35 mi. SSW of Baker, CA           
 8/28  2:15 am  32 14.9  115 46.8  2.7  33 mi. SSW of Calexico, CA        
 8/28  5:13 am  34 48.1  116 16.2  2.7  33 mi. SSW of Baker, CA           
 8/28 11:01 am  34 46.9  116 17.4  2.7  35 mi. SSW of Baker, CA           
 8/28  2:13 pm  33 10.8  115 35.7  2.2  2 mi. ENE of Obsidian Butte, CA   
 8/28  4:51 pm  33  7.1  115 40.3  2.1  4 mi. SSW of Obsidian Butte, CA   
 8/28  5:42 pm  32 47.2  115 27.0  2.1  5 mi. E of El Centro, CA          
 8/28  7:31 pm  35 22.9  117 49.9  2.7  19 mi. NNE of California City, CA 
 8/28  9:54 pm  33  6.9  115 42.2  2.1  5 mi. SW of Obsidian Butte, CA    
 8/28 10:05 pm  33 15.8  116 13.7  2.5  8 mi. E of Borrego Springs, CA    
 8/28 11:56 pm  32 48.4  115 34.4  2.0  1 mi. NW of El Centro, CA         
 8/29  1:17 am  34 43.5  116 25.0  2.4  41 mi. N of Joshua Tree, CA       
 8/29  1:51 am  33 48.9  117  0.4  2.9  5 mi. NNW of Hemet, CA            
                                        FELT in San Jacinto, Romoland, Hemet
 8/29  3:26 am  33 15.7  116  1.1  2.1  3 mi. WSW of Salton City, CA      
 8/29  7:15 am  36  5.3  117 50.5  2.1  6 mi. ENE of Coso Junction, CA    
 8/29  7:49 am  32 48.1  115 34.0  2.2  1 mi. NW of El Centro, CA         
 8/29  8:19 am  32 13.3  115 47.2  3.0  35 mi. SSW of Calexico, CA        
 8/29  8:39 am  33 10.9  115 35.8  2.0  2 mi. ENE of Obsidian Butte, CA   
 8/29  6:17 pm  34  9.9  117 34.1  2.3  4 mi. NNE of Rancho Cucamonga, CA 
 8/29  8:52 pm  35 40.9  117 37.0  3.5  5 mi. NE of Ridgecrest, CA        
                                        FELT in Ridgecrest & Inyokern
 8/29  9:36 pm  33 49.0  117  0.3  2.1  5 mi. NNW of Hemet, CA            
 8/29  9:45 pm  35 41.0  117 36.7  2.1  5 mi. NE of Ridgecrest, CA        
 8/30  1:14 am  34 19.0  116  6.5  2.8  12 mi. NNW of Twentynine Palms, CA
                                        FELT in Hesperia
 8/30  1:58 am  34 39.2  119  3.0  2.2  12 mi. SSW of Frazier Park, CA    
 8/30  2:27 am  36  5.8  117 53.4  2.0  4 mi. NE of Coso Junction, CA     
 8/30  3:21 am  34 41.6  116 19.1  2.4  38 mi. N of Joshua Tree, CA       
 8/30  8:17 am  34 21.9  116 27.7  2.0  17 mi. N of Yucca Valley, CA      
 8/30  8:48 am  33  3.5  117 48.9  2.3  28 mi. SSW of Dana Point, CA      
 8/30 10:55 am  33 15.5  116 18.7  2.1  3 mi. E of Borrego Springs, CA    
 8/30 11:03 am  34 51.7  116 23.7  2.1  33 mi. SSW of Baker, CA           
 8/30 11:38 am  35 48.2  117 27.6  2.2  5 mi. WNW of Trona, CA            
 8/30 10:43 pm  34 40.2  116 12.5  2.0  37 mi. N of Joshua Tree, CA       
 8/31  1:36 am  34 21.9  116 27.4  2.1  17 mi. N of Yucca Valley, CA      
 8/31  3:16 am  34 47.7  116 16.0  2.0  34 mi. SSW of Baker, CA           
 8/31  4:45 am  34 47.7  116 15.8  2.2  34 mi. SSW of Baker, CA           
 8/31  5:33 am  33 11.5  118 14.3  2.1  11 mi. SSE of Avalon, Catalina Island, CA   
 8/31 11:33 am  32 54.0  117 41.5  2.2  27 mi. SW of Oceanside, CA        
 8/31  2:06 pm  34 26.2  116 12.1  2.2  21 mi. NNE of Joshua Tree, CA     
 8/31  2:52 pm  34 21.1  116  8.8  2.6  15 mi. NNW of Twentynine Palms, CA
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