Southern California Earthquakes in the Past Week

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

March 5, 1999

The time period covered is 4 pm on Thursday, February 25 (PST) through 4 pm on Thursday, March 4 (PST). During this period, we detected and analysed 134 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
-----------------------------------------------------------------------------
 2/25  8:49 pm  34  1.1  118 20.4  2.1  2 mi. ENE of Baldwin Hills, CA; FELT
 2/26  6:03 am  32 15.3  115 37.5  2.9  29 mi. SSW of Calexico, CA     
 2/26 11:30 am  32 59.0  115 53.2  2.2  18 mi. NNE of Ocotillo, CA     
 2/26 11:32 am  32 11.1  116 57.3  3.3  25 mi. SSE of San Ysidro, CA   
 2/26  1:16 pm  32 50.3  115 42.8  2.2  9 mi. WNW of El Centro, CA     
 2/26  4:49 pm  34 52.8  119  3.5  2.4  7 mi. WNW of Frazier Park, CA  
 2/27  6:00 am  35 28.2  118 44.3  2.2  18 mi. NNE of Arvin, CA        
 2/27  2:31 pm  32 11.4  115  5.8  3.5  40 mi. SE of Calexico, CA      
 2/27  6:50 pm  33 58.6  116 17.7  2.6  11 mi. S of Joshua Tree, CA    
 2/27 10:51 pm  32 42.7  115 54.8  2.7  4 mi. ESE of Ocotillo, CA      
 2/27 11:13 pm  34  0.8  117 14.6  2.1  2 mi. SSE of Loma Linda, CA    
 2/28  7:31 pm  35 46.3  117 39.8  2.4  10 mi. N of Ridgecrest, CA     
 2/28  9:50 pm  35 29.4  120 45.3  2.0  5 mi. W of Atascadero, CA      
 2/28  9:51 pm  34  2.0  118 19.1  2.6  2 mi. SW of Macarthur Park, CA 
 2/28 10:53 pm  34 13.5  118 24.5  2.4  2 mi. E of Panorama City, CA   
 2/28 10:53 pm  34 14.5  118 23.7  2.1  2 mi. SW of Lake View Terrace, CA
 3/1   2:34 pm  34  2.6  117 16.9  2.4  1 mi. WSW of Loma Linda, CA    
 3/2   1:05 am  34 59.8  119 12.8  2.4  15 mi. W of Wheeler Ridge, CA  
 3/2   3:56 am  34 10.1  117 20.1  2.5  4 mi. NNE of Rialto, CA        
 3/2   6:22 am  35  8.5  117  8.1  2.2  18 mi. NNW of Barstow, CA      
 3/2   6:37 am  35  8.8  117  8.4  2.4  19 mi. NNW of Barstow, CA      
 3/2   1:06 pm  34 22.2  119 13.3  2.5  5 mi. SSE of Ojai, CA          
 3/2   5:34 pm  32 43.3  115 56.0  2.1  3 mi. ESE of Ocotillo, CA      
 3/3   7:20 am  34 21.0  118 36.9  2.5  4 mi. SW of Valencia, CA       
 3/3   9:16 am  34 20.8  118 38.2  2.1  5 mi. SW of Valencia, CA       
 3/4   5:59 am  34 20.4  116 28.1  2.3  15 mi. N of Yucca Valley, CA   
 3/4  10:27 am  35  8.1  118 11.9  2.0  5 mi. NNW of Mojave, CA        
 3/4  11:34 am  35 34.9  117 30.8  3.0  9 mi. ESE of Ridgecrest, CA    
-----------------------------------------------------------------------------