Southern California Earthquakes in the Past Week

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

January 28, 2000


The time period covered is 4 pm on Thursday, January 20 (PST) through 4 pm on Thursday, January 27 (PST). During this period we dectected and analysed 501 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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 1/20  5:21 pm  34 34.7  116 16.3  2.0  30 mi. N of Joshua Tree, CA       
 1/20  6:29 pm  34 39.1  116 16.8  2.3  35 mi. N of Joshua Tree, CA       
 1/20  7:06 pm  34 47.2  116 17.3  2.3  35 mi. SSW of Baker, CA           
 1/20  9:50 pm  34 38.7  116 17.2  2.0  35 mi. N of Joshua Tree, CA       
 1/20 10:10 pm  34 28.2  116 14.0  2.4  23 mi. NNE of Joshua Tree, CA     
 1/20 11:44 pm  34  6.1  117  0.5  2.0  4 mi. NNE of Yucaipa, CA          
 1/21  5:36 am  34 47.3  116 17.9  2.2  35 mi. SSW of Baker, CA           
 1/21  5:56 am  34 51.1  116 23.3  3.0  33 mi. SSW of Baker, CA           
 1/21  6:01 am  32 35.1  118 12.4  2.9  18 mi. SSE of San Clemente Is., CA
 1/21  7:02 am  34 31.4  116 16.9  2.1  26 mi. N of Joshua Tree, CA       
 1/21  7:21 am  36  6.4  117 35.8  2.1  20 mi. ENE of Coso Junction, CA   
 1/21  9:08 am  34 34.4  116 15.8  3.0  30 mi. N of Joshua Tree, CA       
 1/21 11:34 am  33  9.8  115 36.0  2.0  2 mi. ESE of Obsidian Butte, CA   
 1/21  1:57 pm  34 26.2  116 15.3  2.1  21 mi. N of Joshua Tree, CA       
 1/21  2:35 pm  34 30.7  116 16.2  2.2  26 mi. N of Joshua Tree, CA       
 1/21  3:23 pm  36 18.4  117 11.8  2.3  11 mi. NNW of Telescope Peak, CA  
 1/21  5:18 pm  34 39.6  116 18.2  2.3  36 mi. N of Joshua Tree, CA       
 1/21  8:34 pm  34 31.6  116 15.5  2.2  27 mi. N of Joshua Tree, CA       
 1/21  9:24 pm  34 54.6  116 25.3  2.6  31 mi. SW of Baker, CA            
 1/21 11:04 pm  32 33.5  118 14.9  2.7  18 mi. SSE of San Clemente Is., CA
 1/21 11:04 pm  32 36.9  118 10.5  2.6  17 mi. SE of San Clemente Is., CA 
 1/22 12:01 am  34 36.9  116 14.3  2.2  33 mi. N of Joshua Tree, CA        
 1/22 12:05 am  34 38.7  116 16.6  2.2  35 mi. N of Joshua Tree, CA        
 1/22 12:26 am  34 52.6  116 20.9  2.2  31 mi. SSW of Baker, CA            
 1/22  1:39 am  35 44.8  118  0.4  2.3  20 mi. S of Coso Junction, CA      
 1/22  4:17 am  34 48.5  116 19.7  2.2  34 mi. SSW of Baker, CA            
 1/22  4:50 am  34 43.4  116  3.5  2.1  37 mi. S of Baker, CA              
 1/22  6:47 am  35 25.6  119 60.0  2.2  5 mi. N of Simmler, CA             
 1/22 10:37 am  34 38.8  116 17.8  2.0  35 mi. N of Joshua Tree, CA        
 1/22 12:28 pm  34 33.9  116 16.1  2.1  29 mi. N of Joshua Tree, CA        
 1/22  3:10 pm  34 19.5  116 46.0  3.0  6 mi. NE of Big Bear City, CA      
 1/22  3:40 pm  34 40.2  116 18.2  2.1  36 mi. N of Joshua Tree, CA        
 1/22  4:15 pm  34 19.4  116 46.0  2.1  6 mi. NE of Big Bear City, CA      
 1/22  5:19 pm  34  6.2  117  0.4  2.0  5 mi. NNE of Yucaipa, CA           
 1/22  8:28 pm  34 15.0  116 26.3  2.7  9 mi. N of Yucca Valley, CA        
 1/22  8:41 pm  34 19.3  116 46.1  2.7  6 mi. NE of Big Bear City, CA      
 1/22  9:35 pm  34 14.8  116 26.5  2.0  8 mi. N of Yucca Valley, CA        
 1/22  9:38 pm  34 15.0  116 26.3  3.0  9 mi. N of Yucca Valley, CA        
 1/22  9:40 pm  34 15.1  116 26.4  2.0  9 mi. N of Yucca Valley, CA        
 1/22 10:00 pm  34 51.1  116 19.4  3.5  31 mi. SSW of Baker, CA            
                                        FELT
 1/22 11:15 pm  34 42.8  116 16.4  2.4  39 mi. N of Joshua Tree, CA        
 1/23  3:43 am  34 44.0  116 18.4  2.0  39 mi. SSW of Baker, CA            
 1/23  4:34 am  32 34.3  118 12.3  3.2  19 mi. SSE of San Clemente Is., CA 
 1/23  5:56 am  36  3.4  117 52.0  2.0  4 mi. E of Coso Junction, CA       
 1/23  2:04 pm  34 39.7  116 17.4  2.5  36 mi. N of Joshua Tree, CA        
 1/23  2:07 pm  33 55.0  117  8.7  2.1  9 mi. N of Perris, CA              
 1/23  2:08 pm  33 55.0  117  8.7  2.3  9 mi. N of Perris, CA              
 1/23  4:19 pm  34 42.0  116 17.7  2.0  38 mi. N of Joshua Tree, CA        
 1/23  5:39 pm  35 26.2  120  1.2  2.0  5 mi. N of Simmler, CA             
 1/23  6:57 pm  34 17.9  116  4.4  2.5  11 mi. N of Twentynine Palms, CA   
 1/23  6:59 pm  34 17.8  116  4.5  2.8  11 mi. N of Twentynine Palms, CA   
 1/23  7:47 pm  34 51.2  116 26.0  2.9  35 mi. SW of Baker, CA             
 1/24  1:32 am  34 40.5  116 17.5  2.2  37 mi. N of Joshua Tree, CA        
 1/24  2:19 am  34 17.7  116  4.6  2.4  11 mi. N of Twentynine Palms, CA   
 1/24  3:14 am  34  6.0  117  0.1  2.0  4 mi. NNE of Yucaipa, CA           
 1/24  5:18 am  34 48.7  116 23.9  2.1  36 mi. SSW of Baker, CA            
 1/24  9:05 am  34 48.2  116 18.2  2.3  34 mi. SSW of Baker, CA            
 1/24  9:24 am  34  1.1  117 13.2  2.0  2 mi. SE of Loma Linda, CA         
 1/24 11:56 am  35 45.0  118  0.6  3.4  20 mi. S of Coso Junction, CA      
 1/24 12:25 pm  34 48.4  116 19.6  2.1  34 mi. SSW of Baker, CA            
 1/24 12:35 pm  32 36.6  118 11.3  2.5  17 mi. SSE of San Clemente Is., CA 
 1/24  2:36 pm  34 19.5  116 45.8  2.1  6 mi. NE of Big Bear City, CA        
 1/24  3:45 pm  34  6.7  117 28.8  2.1  2 mi. W of Fontana, CA               
 1/24  6:04 pm  34 41.3  116 18.5  2.2  38 mi. N of Joshua Tree, CA          
 1/24 10:56 pm  34 31.5  116 15.4  2.0  27 mi. N of Joshua Tree, CA          
 1/25  3:11 am  34 48.0  116 18.3  2.1  34 mi. SSW of Baker, CA              
 1/25  3:34 am  33 10.7  115 36.0  2.5  2 mi. ENE of Obsidian Butte, CA      
 1/25  6:02 am  34 51.1  116 23.5  2.3  33 mi. SSW of Baker, CA              
 1/25  6:12 am  34 41.5  116 18.6  2.1  38 mi. N of Joshua Tree, CA          
 1/25  7:24 am  34 42.0  116 18.6  2.4  38 mi. N of Joshua Tree, CA          
 1/25  8:43 am  34  1.4  118 55.8  2.7  1 mi. SSE of Leo Carrillo State Beach
 1/25  9:38 am  33 55.6  118 54.5  2.3  8 mi. SSE of Leo Carrillo State Beach
 1/25 10:42 am  34 19.4  116 39.9  2.3  11 mi. ENE of Big Bear City, CA      
 1/25 12:43 pm  34 39.7  116 17.8  2.4  36 mi. N of Joshua Tree, CA          
 1/25 12:47 pm  34 41.3  116 18.5  2.1  38 mi. N of Joshua Tree, CA          
 1/25  2:32 pm  34 42.5  116 18.5  2.5  39 mi. N of Joshua Tree, CA          
 1/25  2:37 pm  32 10.9  115 19.7  2.4  35 mi. SSE of Calexico, CA           
 1/25  5:06 pm  33  0.0  115 33.8  2.1  3 mi. NNW of Brawley, CA             
 1/25  7:18 pm  34 51.1  116 23.8  2.0  34 mi. SSW of Baker, CA              
 1/25  8:09 pm  34 48.8  116 22.0  2.3  35 mi. SSW of Baker, CA              
 1/25  9:30 pm  34  6.1  117  0.7  2.2  4 mi. NNE of Yucaipa, CA             
 1/25 11:48 pm  34 54.7  116 24.1  2.1  30 mi. SW of Baker, CA               
 1/26 12:38 am  34 47.9  116 15.9  2.5  34 mi. SSW of Baker, CA              
 1/26  3:02 am  35 44.8  118  0.4  3.6  20 mi. S of Coso Junction, CA        
 1/26  3:08 am  35 44.7  118  0.3  2.3  20 mi. S of Coso Junction, CA        
 1/26  3:12 am  35 44.7  118  0.4  2.1  21 mi. S of Coso Junction, CA        
 1/26  8:53 am  33 20.4  116 48.1  2.6  3 mi. ESE of Palomar Observatory, CA 
 1/26 11:03 am  34 19.4  116 45.8  2.0  6 mi. NE of Big Bear City, CA        
 1/26  1:39 pm  35 44.8  118  0.5  2.4  20 mi. S of Coso Junction, CA        
 1/26  2:02 pm  34 19.3  116 45.9  2.9  6 mi. NE of Big Bear City, CA        
 1/26  3:47 pm  34 39.8  116 17.1  2.0  36 mi. N of Joshua Tree, CA          
 1/26  4:32 pm  34 32.0  116  1.0  2.0  27 mi. N of Twentynine Palms, CA     
 1/26  4:53 pm  35 44.7  118  0.3  2.0  20 mi. S of Coso Junction, CA        
 1/26  5:42 pm  32 59.5  117 42.3  2.1  23 mi. SW of Oceanside, CA           
 1/26  6:04 pm  34 10.5  117 23.5  2.2  3 mi. S of Devore, CA                
 1/27  1:21 am  33 42.0  116 46.1  2.9  4 mi. SW of Idyllwild, CA            
 1/27  1:28 am  33 42.2  116 46.2  2.4  4 mi. SW of Idyllwild, CA            
 1/27  1:33 am  34 39.1  116 17.3  2.0  35 mi. N of Joshua Tree, CA          
 1/27  1:48 am  33 42.2  116 46.1  2.8  4 mi. SW of Idyllwild, CA            
 1/27  2:15 am  34 40.0  116 17.3  2.1  36 mi. N of Joshua Tree, CA          
 1/27  6:36 am  34 50.3  116 21.2  2.3  33 mi. SSW of Baker, CA              
 1/27  8:07 am  34 23.8  116 27.0  3.6  19 mi. N of Yucca Valley, CA         
 1/27  8:39 am  34 13.8  117 40.0  2.2  4 mi. SSW of Mt. Baldy, CA           
 1/27  8:53 am  34  0.6  117  6.1  2.0  4 mi. WSW of Yucaipa, CA             
 1/27 12:19 pm  34 39.8  116 17.2  2.0  36 mi. N of Joshua Tree, CA          
 1/27  2:41 pm  34 39.9  116 21.5  2.0  36 mi. N of Joshua Tree, CA          
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