Southern California Earthquakes in the Past Week

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

December 3, 1999


The time period covered is 4 pm on Thursday, November 25 (PDT) through 4 pm on Thursday, December 2 (PDT). During this period, there were 625 earthquakes listed in the partially-reviewed automatic catalog. 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. For the Hector aftershocks, we have only listed M2.5 and larger, and, in the perepheral areas, only 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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11/25  7:03 pm  34 13.1  116 48.7  2.1  3 mi. SE of Big Bear City, CA         
11/25  7:19 pm  34 51.5  116 25.4  2.5  34 mi. SW of Baker, CA                
11/25  9:34 pm  36 56.5  117 29.2  2.1  29 mi. NW of Stovepipe Wells, CA      
11/25 11:31 pm  36  2.9  117 52.3  2.7  4 mi. E of Coso Junction, CA          
11/25 11:31 pm  34 46.9  116 20.3  2.9  36 mi. SSW of Baker, CA               
11/26 12:06 am  34 31.0  116 15.3  2.5  26 mi. N of Joshua Tree, CA           
11/26 12:41 am  32 37.5  115 47.0  2.0  14 mi. ESE of Ocotillo, CA            
11/26  2:41 am  36  3.1  117 52.4  2.0  4 mi. E of Coso Junction, CA          
11/26  8:40 am  34 45.3  116 25.6  2.0  36 mi. NE of Lucerne Valley, CA       
11/26  1:12 pm  34 42.1  116 17.9  2.6  39 mi. N of Joshua Tree, CA           
11/26  1:35 pm  33  9.9  115 35.7  2.1  2 mi. E of Obsidian Butte, CA         
11/26  2:35 pm  36  0.7  117 48.6  2.1  8 mi. ESE of Coso Junction, CA        
11/26  3:32 pm  34  7.7  116 50.7  2.2  2 mi. NNW of Mt. San Gorgonio, CA     
11/26  5:30 pm  34 28.3  116 14.2  2.5  23 mi. N of Joshua Tree, CA           
11/26  6:58 pm  34 35.8  116 17.3  2.6  31 mi. N of Joshua Tree, CA           
11/26  9:30 pm  34 22.5  116 28.8  2.0  17 mi. N of Yucca Valley, CA          
11/27  7:20 am  34 58.2  116 47.9  2.1  13 mi. ENE of Barstow, CA             
11/27 10:36 am  34 39.2  116 17.7  3.3  35 mi. N of Joshua Tree, CA           
11/27 10:38 am  34 41.2  116 17.8  2.6  37 mi. N of Joshua Tree, CA           
11/27 10:43 am  33 45.6  116 17.7  2.0  5 mi. NW of Indio, CA                 
11/27  6:37 pm  34 35.6  116 14.5  3.1  31 mi. N of Joshua Tree, CA           
11/27 10:28 pm  34  2.4  117 14.9  2.0  Under Loma Linda, CA                
11/28 12:55 am  33 23.6  116 22.8  2.0  9 mi. N of Borrego Springs, CA        
11/28  2:02 am  36 47.6  118 12.5  2.3  Under Independence, CA              
11/28  3:47 am  32 58.3  117 43.6  2.5  25 mi. SW of Oceanside, CA            
11/28  4:11 am  33  2.1  117 43.9  2.0  23 mi. WSW of Oceanside, CA           
11/28 10:27 am  34 11.2  116 26.5  2.1  4 mi. N of Yucca Valley, CA           
11/28 10:54 am  34 35.3  116 14.9  2.1  31 mi. N of Joshua Tree, CA           
11/28  6:22 pm  33 21.4  116 22.0  2.0  7 mi. N of Borrego Springs, CA        
11/28  8:06 pm  34 35.0  116 15.5  2.5  31 mi. N of Joshua Tree, CA           
11/28  8:58 pm  34 24.8  116 10.1  2.7  20 mi. NNW of Twentynine Palms, CA    
11/28  9:03 pm  33 28.2  116 34.5  2.2  8 mi. SE of Anza, CA                  
11/28 11:04 pm  33 10.0  115 35.1  2.0  3 mi. E of Obsidian Butte, CA         
11/29  2:28 am  34 31.2  116 15.4  2.5  26 mi. N of Joshua Tree, CA           
11/29  4:30 am  33 30.3  116 28.5  2.0  11 mi. ESE of Anza, CA                
11/29  1:38 pm  34 37.4  116 17.1  2.5  33 mi. N of Joshua Tree, CA           
11/29  2:36 pm  34 58.9  116 56.6  2.2  7 mi. NE of Barstow, CA               
11/29  4:10 pm  34 18.7  116  4.7  2.6  12 mi. N of Twentynine Palms, CA      
11/29  4:20 pm  34 34.9  116 16.3  2.6  30 mi. N of Joshua Tree, CA           
11/29  8:08 pm  34  5.3  116 22.6  2.5  4 mi. ESE of Yucca Valley, CA         
11/29 10:01 pm  34 28.2  116 14.5  2.5  23 mi. N of Joshua Tree, CA           
11/30 10:27 am  34  7.3  118 25.0  3.3  2 mi. SW of Studio City, CA           
                                        FELT in Hollywood, San Fernando Valley
11/30 10:30 am  33 49.9  116 26.6  2.1  3 mi. NNE of Cathedral City, CA       
11/30 10:46 am  34  7.5  118 25.0  3.1  2 mi. SW of Studio City, CA           
                                        FELT in Hollywood, San Fernando Valley
11/30 11:39 am  34  5.1  118 25.3  2.1  1 mi. W of West Hollywood, CA         
11/30  6:13 pm  34 49.4  120 21.0  2.0  10 mi. SSE of Santa Maria, CA         
11/30  6:23 pm  34  6.6  118 26.0  2.0  2 mi. NW of West Hollywood, CA        
11/30  7:47 pm  33 56.0  116 49.9  2.1  2 mi. E of Banning, CA                
11/30 10:30 pm  34 40.9  116 17.2  2.5  37 mi. N of Joshua Tree, CA           
12/1   1:17 am  34 27.0  117 42.8  2.5  8 mi. NW of Wrightwood, CA            
12/1   8:44 am  34 51.0  116 20.7  3.6  32 mi. SSW of Baker, CA               
12/1   9:39 am  34 41.7  116 18.7  2.5  38 mi. N of Joshua Tree, CA           
12/1   6:19 pm  34  8.8  117 27.3  3.1  3 mi. NNW of Fontana, CA              
                                        FELT in Inland Empire
12/1  11:10 pm  34  6.3  117  0.6  2.2  5 mi. NNE of Yucaipa, CA              
12/2   1:41 am  34 13.9  116 52.5  2.1  2 mi. ESE of town of Big Bear Lake, CA
12/2   5:02 am  34 24.8  116 29.3  2.3  20 mi. N of Yucca Valley, CA          
12/2  10:00 am  33 31.2  116 33.1  2.2  7 mi. ESE of Anza, CA                 
12/2   1:22 pm  34 24.6  116  9.0  2.4  19 mi. NNW of Twentynine Palms, CA    
12/2   3:20 pm  34 11.7  117 34.7  2.1  6 mi. N of Rancho Cucamonga, CA       
12/2   3:27 pm  34 11.4  117 34.1  2.1  5 mi. NNE of Rancho Cucamonga, CA     
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