Southern California Earthquakes in the Past Week

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

January 8, 1999


The time period covered is 4 pm on Thursday, December 31 (PDT) through 4 pm on Thursday, January 7 (PST). During this period, we detected and analysed 242 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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 1/1  12:44 am  32 49.4  115 36.4  2.0  3 mi. WNW of El Centro, CA     
 1/1   3:08 am  34 35.8  119 10.9  2.9  11 mi. NNE of Ojai, CA         
 1/1   4:21 am  35  0.6  119 11.8  3.5  14 mi. W of Wheeler Ridge, CA
 1/1  11:31 am  32 49.5  115 37.2  3.2  4 mi. WNW of El Centro, CA    
 1/1  11:32 am  32 50.2  115 37.0  2.9  4 mi. NW of El Centro, CA    
 1/1  11:44 am  32 49.8  115 36.5  2.2  4 mi. NW of El Centro, CA    
 1/1  11:51 am  32 49.6  115 36.8  3.3  4 mi. WNW of El Centro, CA    
 1/1  12:19 pm  34 33.9  119  8.2  2.4  10 mi. NE of Ojai, CA        
 1/1  12:37 pm  32 49.0  115 35.8  2.2  3 mi. WNW of El Centro, CA    
 1/1   2:08 pm  32 49.1  115 36.2  2.3  3 mi. WNW of El Centro, CA    
 1/1  11:52 pm  32 49.5  115 36.4  2.2  3 mi. NW of El Centro, CA    
 1/2   1:16 am  34 17.1  116 46.4  2.7  4 mi. ENE of Big Bear City, CA
 1/2   1:47 am  32  9.7  114 59.8  2.5  42 mi. SSW of Yuma, AZ        
 1/2  10:49 am  32 40.6  115 48.3  2.3  11 mi. ESE of Ocotillo, CA    
 1/2   1:36 pm  36  6.5  118 24.3  2.2  25 mi. WSW of Olancha, CA     
 1/2   7:35 pm  36  6.5  118 24.5  2.1  25 mi. WSW of Olancha, CA     
 1/2   9:05 pm  35 59.3  117 34.1  2.5  18 mi. NW of Trona, CA       
 1/2   9:37 pm  36  4.0  117 50.2  3.1  6 mi. ENE of Coso Junction, CA
 1/2   9:38 pm  36  4.2  117 50.2  2.1  6 mi. ENE of Coso Junction, CA
 1/2  10:41 pm  33 42.3  116 50.0  2.1  7 mi. WSW of Idyllwild, CA    
 1/2  10:42 pm  33 42.3  116 50.0  2.4  7 mi. WSW of Idyllwild, CA    
 1/3   3:36 am  34 28.2  116 30.0  2.2  24 mi. N of Yucca Valley, CA
 1/3  10:24 am  36  6.1  118 23.9  3.0  25 mi. WSW of Olancha, CA     
 1/3  12:33 pm  34 16.3  118 32.9  2.3  2 mi. NNW of Northridge, CA   
 1/3   4:42 pm  36  3.9  117 49.9  2.0  6 mi. ENE of Coso Junction, CA
 1/3   5:45 pm  34 18.9  119 45.0  2.3  7 mi. SSW of downtown Santa Barbara, CA
 1/4   4:09 am  32 46.1  115 26.2  2.2  7 mi. NNE of Calexico, CA     
 1/4   5:04 am  34 33.7  116 26.9  2.0  30 mi. N of Yucca Valley, CA
 1/4   5:32 am  34  2.5  116 21.6  2.1  7 mi. SSW of Joshua Tree, CA  
 1/4  12:41 pm  34 32.9  116 29.3  2.1  29 mi. N of Yucca Valley, CA
 1/4   2:22 pm  32 43.7  115 24.7  2.1  6 mi. NE of Calexico, CA     
 1/4   3:02 pm  34 13.4  117 41.0  2.2  4 mi. SSW of Mt. Baldy, CA    
 1/5   2:57 am  36 53.2  115 56.3  3.2  65 mi. NNE of Shoshone, CA    
 1/5   2:27 pm  33 29.2  116 27.1  2.0  13 mi. ESE of Anza, CA        
 1/5   3:49 pm  34 20.9  116 27.7  2.0  15 mi. N of Yucca Valley, CA
 1/6   1:23 am  33 41.1  116 44.7  2.0  4 mi. SSW of Idyllwild, CA    
 1/6   4:02 am  36 19.3  118  0.9  2.1  2 mi. NNW of Olancha, CA      
 1/6   1:41 pm  32 58.5  115 32.7  2.4  1 mi. NNW of Brawley, CA      
 1/7  12:36 pm  34 28.3  116 29.9  2.3  24 mi. N of Yucca Valley, CA
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