Southern California Earthquakes in the Past Week

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

February 12, 1999


The time period covered is 4 pm on Thursday, February 4 (PST) through 4 pm on Thursday, February 11 (PST). During this period, we detected and analysed 145 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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 2/4   6:32 pm  34 10.2  116 26.0  2.2  3 mi. N of Yucca Valley, CA    
 2/5   2:07 pm  34  1.1  117  5.3  2.2  3 mi. WSW of Yucaipa, CA       
 2/6   1:38 am  34 19.7  116 50.6  3.0  4 mi. N of Big Bear City, CA   
 2/6   4:14 am  34  0.3  119 33.4  2.6  2 mi. SW of Santa Cruz Is., CA 
 2/6   9:35 pm  33 56.5  116 22.0  2.8  7 mi. E of Desert Hot Springs, CA
 2/6  11:04 pm  35 42.1  117 35.4  2.2  6 mi. NE of Ridgecrest, CA       
 2/7   9:46 am  34  3.9  117 16.4  2.2  1 mi. NW of Loma Linda, CA       
 2/7  10:13 am  35 45.4  118 22.8  2.2  9 mi. NNE of town of Lake Isabella, CA
 2/7   3:24 pm  34  3.6  117 29.7  2.0  4 mi. SW of Fontana, CA         
 2/7   7:43 pm  35 30.3  119 19.2  2.2  20 mi. WNW of Bakersfield, CA   
 2/7  10:17 pm  33  3.0  116 23.4  2.0  14 mi. S of Borrego Springs, CA 
 2/8   1:12 am  34  2.2  116 48.7  2.0  4 mi. S of Mt. San Gorgonio, CA 
 2/8   1:31 am  34  2.3  116 49.0  2.0  4 mi. S of Mt. San Gorgonio, CA 
 2/8   4:08 am  35 17.6  118 36.3  2.1  14 mi. NW of Tehachapi, CA      
 2/8   5:40 am  33  3.7  117 50.9  2.0  28 mi. SSW of Dana Point, CA    
 2/8   7:52 am  34  9.4  116 26.3  2.1  2 mi. N of Yucca Valley, CA     
 2/8   9:44 am  34  2.3  116 48.8  2.1  4 mi. S of Mt. San Gorgonio, CA 
 2/8  10:22 am  34 38.4  116 38.5  2.2  21 mi. NE of Lucerne Valley, CA 
 2/8   9:07 pm  32 41.8  116  0.2  2.2  2 mi. SSW of Ocotillo, CA       
 2/8  11:17 pm  33 59.9  117 13.0  2.0  4 mi. SSE of Loma Linda, CA     
 2/9   1:09 pm  32  0.6  115 44.8  2.7  47 mi. SSW of Calexico, CA      
 2/10 12:50 am  34 18.9  116 50.3  2.3  3 mi. NNE of Big Bear City, CA  
 2/10  1:49 am  33 39.3  116 47.2  2.0  7 mi. SW of Idyllwild, CA       
 2/10  2:57 am  33 40.6  116 44.4  2.0  4 mi. SSW of Idyllwild, CA      
 2/10  3:21 am  34 18.9  116 50.5  2.7  3 mi. NNE of Big Bear City, CA  
 2/10  4:18 am  34 18.8  116 50.5  2.1  3 mi. NNE of Big Bear City, CA  
 2/10 11:35 am  32 41.0  116  0.5  2.1  3 mi. SSW of Ocotillo, CA       
 2/10  2:09 pm  34 10.1  117 20.2  2.2  4 mi. NNE of Rialto, CA         
 2/10  4:16 pm  32 44.8  115 25.4  2.4  6 mi. NE of Calexico, CA        
 2/10  4:19 pm  32 45.0  115 25.5  2.5  6 mi. NE of Calexico, CA        
 2/10  8:10 pm  33 56.4  116 57.4  2.0  1 mi. NE of Beaumont, CA        
 2/10 10:46 pm  34  3.3  116 57.9  2.1  4 mi. ENE of Yucaipa, CA        
 2/11  1:42 am  32 41.8  116  0.2  2.2  2 mi. SSW of Ocotillo, CA       
 2/11  7:52 am  34  6.8  116 55.4  2.4  5 mi. W of Mt. San Gorgonio, CA 
 2/11 10:16 am  34 57.3  116 49.3  2.1  12 mi. ENE of Barstow, CA       
 2/11  2:50 pm  32 34.9  117 16.0  2.4  11 mi. SSW of San Diego, CA     
 2/11  3:44 pm  34 40.0  116 30.7  2.3  29 mi. ENE of Lucerne Valley, CA
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