Southern California Earthquakes in the Past Week

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

November 26, 1999


The time period covered is 4 pm on Thursday, November 18 (PDT) through 4 pm on Thursday, November 25 (PDT). During this period, there were 541 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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11/18  5:45 pm  36  3.0  117 52.6  2.1  3 mi. E of Coso Junction, CA        
11/18  6:56 pm  33 24.1  116 22.8  2.7  10 mi. N of Borrego Springs, CA     
11/18  9:43 pm  33 42.7  116 45.8  2.2  3 mi. SW of Idyllwild, CA           
11/18  9:57 pm  34 32.5  116 17.9  3.7  28 mi. N of Joshua Tree, CA         
11/18 10:05 pm  34 28.7  116 15.2  2.8  23 mi. N of Joshua Tree, CA         
11/19  5:16 am  33 14.8  115 59.2  2.6  2 mi. SSW of Salton City, CA        
11/19  8:25 am  34 27.1  116 13.6  2.5  22 mi. NNE of Joshua Tree, CA       
11/19  1:47 pm  34 41.4  116 17.6  2.6  38 mi. N of Joshua Tree, CA         
11/19  3:32 pm  34 36.3  116 17.1  2.8  32 mi. N of Joshua Tree, CA         
11/19  6:45 pm  32  2.3  116 18.1  2.1  51 mi. SSW of Ocotillo, CA          
11/19  7:35 pm  34 41.3  116 21.2  2.6  38 mi. N of Joshua Tree, CA         
11/19  9:00 pm  33 49.6  117 44.3  2.0  5 mi. SE of Yorba Linda, CA         
11/19 11:31 pm  36  5.9  117 51.0  2.1  6 mi. NE of Coso Junction, CA       
11/20  3:09 am  34 34.9  116 15.3  2.5  30 mi. N of Joshua Tree, CA         
11/20  3:18 am  34 10.0  117 16.0  2.0  4 mi. NNE of San Bernardino, CA     
11/20  9:34 am  33 60.0  116 48.4  2.6  5 mi. NNW of Cabazon, CA            
11/20  4:34 pm  35 44.5  118 29.3  2.0  7 mi. N of town of Lake Isabella, CA
11/20  7:16 pm  34 49.7  116 20.5  2.5  33 mi. SSW of Baker, CA             
11/21 12:06 am  34 41.8  116 21.9  2.5  38 mi. N of Joshua Tree, CA         
11/21 12:17 am  33 51.0  117 49.7  2.0  2 mi. SSW of Yorba Linda, CA        
11/21 12:40 am  34 30.3  120 50.9  2.6  12 mi. WSW of Pt. Arguello, CA      
11/21  5:22 am  34 14.3  116 45.3  2.0  5 mi. ESE of Big Bear City, CA      
11/21 10:11 am  32 57.9  117 40.1  2.7  23 mi. SW of Oceanside, CA          
11/21 12:00 pm  34 35.4  116 37.2  2.0  21 mi. ENE of Lucerne Valley, CA    
11/21  2:10 pm  33 11.4  115 33.9  2.7  4 mi. SW of Niland, CA              
11/21  2:15 pm  34 37.2  116 15.0  3.0  33 mi. N of Joshua Tree, CA         
11/21  2:49 pm  34 42.6  116 20.2  2.6  39 mi. N of Joshua Tree, CA         
11/21  5:25 pm  36  4.3  117 50.2  2.2  6 mi. ENE of Coso Junction, CA      
11/21  9:16 pm  34 42.5  116 19.7  3.1  39 mi. N of Joshua Tree, CA         
11/22  6:52 am  34 49.8  116 24.3  2.5  35 mi. SSW of Baker, CA             
11/22  7:08 am  34 49.7  116 24.1  2.5  35 mi. SSW of Baker, CA             
11/22  7:54 am  33 15.1  116  2.0  2.2  4 mi. WSW of Salton City, CA        
11/22  9:03 am  34 19.2  116 29.3  2.1  14 mi. N of Yucca Valley, CA        
11/22  9:03 am  34 40.2  116 21.0  2.9  36 mi. N of Joshua Tree, CA         
11/22 11:25 am  34 49.8  116 20.1  2.9  33 mi. SSW of Baker, CA             
11/22 12:38 pm  34 31.5  116 16.4  2.9  26 mi. N of Joshua Tree, CA         
11/23  4:04 am  34 45.5  116 26.0  2.0  36 mi. NE of Lucerne Valley, CA     
11/23  4:36 am  34 28.1  116 30.3  2.1  24 mi. N of Yucca Valley, CA        
11/23  6:28 am  34 50.2  116 24.4  2.9  35 mi. SSW of Baker, CA             
11/23  7:52 am  34 24.2  116 11.5  3.1  19 mi. NNE of Joshua Tree, CA       
11/23 10:31 am  33  5.4  117 58.5  2.5  26 mi. SE of Avalon, Catalina Island, CA
11/23  2:10 pm  33 59.2  117 10.4  2.1  4 mi. S of Redlands, CA              
11/23  5:21 pm  36  8.5  117 51.1  2.1  8 mi. NE of Coso Junction, CA        
11/23  8:02 pm  34  6.2  117  0.4  2.9  5 mi. NNE of Yucaipa, CA             
11/24 12:43 am  35 34.4  118 23.9  2.0  5 mi. SE of town of Lake Isabella, CA
11/24  1:18 am  34 48.1  116 20.0  2.9  35 mi. SSW of Baker, CA             
11/24  3:21 am  34 49.8  116 24.1  2.8  35 mi. SSW of Baker, CA             
11/24  3:54 am  34 28.5  116 15.9  2.5  23 mi. N of Joshua Tree, CA         
11/24  5:54 pm  33 10.7  115 35.7  3.5  2 mi. ENE of Obsidian Butte, CA     
                                        FELT in Imperial Valley
11/24  6:02 pm  33 10.8  115 35.3  2.5  2 mi. ENE of Obsidian Butte, CA     
11/24  7:10 pm  34 24.7  116 29.1  2.6  20 mi. N of Yucca Valley, CA        
11/24  8:12 pm  34 27.6  116 14.8  2.8  22 mi. N of Joshua Tree, CA         
11/24  8:22 pm  34 27.6  116 14.7  2.7  22 mi. N of Joshua Tree, CA         
11/24  9:18 pm  34 50.3  116 24.5  3.5  35 mi. SSW of Baker, CA             
11/24  9:21 pm  33 56.4  117 41.2  2.1  5 mi. S of Chino, CA                
11/24 11:40 pm  34 33.5  116 15.7  2.6  29 mi. N of Joshua Tree, CA         
11/25  3:15 am  34 48.7  116 17.5  2.7  33 mi. SSW of Baker, CA             
11/25  4:26 am  33 28.0  116 35.4  2.6  7 mi. SE of Anza, CA                
11/25  8:01 am  35 56.2  117 12.9  3.1  14 mi. NE of Trona, CA              
11/25  9:12 am  34 34.4  116 15.3  2.6  30 mi. N of Joshua Tree, CA         
11/25 10:01 am  34 49.8  116 22.8  2.8  34 mi. SSW of Baker, CA             
11/25  1:48 pm  34 35.1  116 15.0  2.7  31 mi. N of Joshua Tree, CA         
11/25  3:10 pm  33 40.6  116 43.6  2.3  4 mi. S of Idyllwild, CA            
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