Southern California Earthquakes in the Past Week

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

January 1, 1999


The time period covered is 4 pm on Thursday, December 24 (PDT) through 4 pm on Thursday, December 31 (PST). During this period, we detected and analysed 219 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. In the perepheral areas, 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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12/24  4:48 pm  32 43.0  115 54.3  2.0  5 mi. ESE of Ocotillo, CA      
12/24  9:43 pm  34 18.4  116 50.8  2.0  2 mi. N of Big Bear City, CA   
12/24 10:56 pm  36  5.6  118 23.0  3.3  24 mi. WSW of Olancha, CA      
12/24 11:27 pm  34 18.3  116 51.0  2.8  2 mi. N of Big Bear City, CA   
12/24 11:55 pm  33 12.2  116 25.4  2.2  4 mi. SW of Borrego Springs, CA
12/25 12:07 am  34 18.5  116 51.1  2.0  2 mi. N of Big Bear City, CA  
12/25  1:31 am  34 18.6  116 50.8  2.3  3 mi. N of Big Bear City, CA  
12/25  8:38 am  35 29.8  119 11.4  2.0  13 mi. NW of Bakersfield, CA  
12/25 10:34 am  32 39.4  115 47.3  2.3  13 mi. ESE of Ocotillo, CA    
12/25  2:07 pm  32 48.4  115 36.7  2.0  3 mi. WNW of El Centro, CA    
12/25  3:00 pm  34 22.6  118 38.0  2.4  4 mi. WSW of Valencia, CA     
12/25  5:06 pm  34 14.1  117 28.4  2.4  4 mi. WNW of Devore, CA       
12/26 12:11 am  33 47.0  116 57.3  2.4  2 mi. NNE of Hemet, CA        
12/26  3:07 am  36  2.2  117 34.8  2.1  22 mi. NNW of Trona, CA       
12/26  8:47 am  34  8.0  118 30.4  2.4  1 mi. S of Encino, CA         
12/26  9:36 am  34 18.6  116 50.8  2.0  3 mi. N of Big Bear City, CA  
12/27  1:43 am  32  0.8  116 17.6  2.5  52 mi. SSW of Ocotillo, CA    
12/27  6:15 am  33 13.3  116 46.4  2.0  1 mi. SSW of Lake Henshaw, CA 
12/27  5:22 pm  34  9.7  119  7.0  2.4  4 mi. SE of Oxnard, CA        
12/28  6:17 am  33 55.3  116 48.0  2.0  Under Cabazon, CA             
12/28  6:49 am  34 24.5  116 28.1  2.1  20 mi. N of Yucca Valley, CA  
12/28  3:22 pm  36  6.4  118 23.5  2.2  24 mi. WSW of Olancha, CA     
12/28  5:46 pm  32 10.5  115  1.6  3.2  43 mi. SSW of Yuma, AZ        
12/28  6:30 pm  36  4.2  117 50.0  2.0  6 mi. ENE of Coso Junction, CA
12/28  8:51 pm  35 20.0  119 26.0  2.1  13 mi. N of Taft, CA          
12/29  5:42 am  36  4.4  117 50.0  3.1  6 mi. ENE of Coso Junction, CA
12/29  6:04 am  36  4.1  117 50.2  2.3  6 mi. ENE of Coso Junction, CA
12/29  8:22 am  32 40.7  115 48.2  2.1  11 mi. ESE of Ocotillo, CA    
12/29  1:51 pm  34 12.8  118 37.5  2.6  1 mi. NW of Canoga Park, CA   
12/29  6:47 pm  36  4.2  117 50.2  2.3  6 mi. ENE of Coso Junction, CA
12/29  6:48 pm  36  4.2  117 50.0  2.5  6 mi. ENE of Coso Junction, CA
12/29  7:10 pm  33 49.8  116 47.3  2.1  6 mi. S of Cabazon, CA        
12/29 10:38 pm  32 34.3  117 16.5  2.1  11 mi. SW of San Diego, CA    
12/29 11:26 pm  36  4.1  117 50.0  2.5  6 mi. ENE of Coso Junction, CA
12/30  4:22 am  35 59.9  117 58.0  2.8  3 mi. SSW of Coso Junction, CA
12/30  6:00 am  32  3.1  116 17.1  2.6  50 mi. SSW of Ocotillo, CA    
12/30  7:13 am  36  4.1  117 50.2  2.0  6 mi. ENE of Coso Junction, CA
12/30  7:17 am  35 38.4  117 29.1  2.9  10 mi. SW of Trona, CA        
12/30 10:48 am  33 45.8  116  7.0  2.8  6 mi. ENE of Indio, CA        
12/30  2:10 pm  32 48.2  115 35.9  2.0  2 mi. WNW of El Centro, CA    
12/30  2:37 pm  34 20.9  116 27.5  2.1  15 mi. N of Yucca Valley, CA  
12/31  9:36 am  33 50.6  117  5.3  2.6  5 mi. NE of Perris, CA        
12/31 11:57 am  36 26.8  116 55.7  2.1  4 mi. W of Furnace Creek, CA  
12/31 12:47 pm  35 55.5  117 45.3  2.5  13 mi. SE of Coso Junction, CA
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