Southern California Earthquakes in the Past Week

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

August 4, 2000


The time period covered is 5 pm on Thursday, July 27 (PDT) through 5 pm on Thursday, August 3 (PDT). During this period we dectected and analysed 280 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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 7/27  5:46 pm  33 53.3  120  8.3  2.6  4 mi. SSW of Santa Rosa Is., CA  
 7/27  6:30 pm  35 18.4  119 26.2  2.5  11 mi. N of Taft, CA             
 7/28  3:38 am  32  2.8  116 19.0  3.1  51 mi. SSW of Ocotillo, CA       
 7/28  5:35 am  34 41.5  116 22.4  2.0  38 mi. N of Joshua Tree, CA      
 7/28  6:49 am  33 51.9  119 37.0  2.1  12 mi. SSW of Santa Cruz Is., CA 
 7/28  9:40 am  32 16.9  115 36.3  2.8  27 mi. SSW of Calexico, CA       
 7/28  1:13 pm  34 43.3  116  5.0  2.0  37 mi. S of Baker, CA            
 7/28  8:01 pm  34 39.8  119  3.5  3.0  12 mi. SSW of Frazier Park, CA   
 7/28 11:13 pm  34 40.0  116 17.9  2.0  36 mi. N of Joshua Tree, CA      
 7/29  1:13 am  32 46.8  118 18.4  2.2  3 mi. SE of San Clemente Is., CA 
 7/29 10:59 am  34 43.8  116 17.8  2.8  39 mi. SSW of Baker, CA          
 7/30  2:14 am  34  3.3  116 56.8  2.6  5 mi. ENE of Yucaipa, CA         
 7/30  2:21 am  34  3.2  116 56.9  3.2  5 mi. ENE of Yucaipa, CA         
                                        FELT 
 7/30  3:18 am  35 45.7  119 19.0  2.0  27 mi. SW of Porterville, CA     
 7/30  8:05 am  34  4.6  118 31.3  2.0  4 mi. NNW of Santa Monica, CA    
 7/30  3:01 pm  36 20.5  118  3.5  2.2  5 mi. NW of Olancha, CA          
 7/30  7:09 pm  35 28.0  118 20.5  2.0  13 mi. SSE of town of Lake Isabella, CA
 7/30 11:42 pm  32 13.4  115 46.8  3.0  34 mi. SSW of Calexico, CA       
 7/31  5:55 am  34 32.3  116 14.6  2.1  28 mi. N of Joshua Tree, CA      
 7/31  7:34 am  33 10.3  115 35.6  2.2  2 mi. E of Obsidian Butte, CA    
 7/31  8:50 am  32 43.4  115 25.7  2.2  5 mi. NE of Calexico, CA         
 7/31  8:57 am  32 44.1  115 25.5  2.3  6 mi. NE of Calexico, CA         
 7/31  2:34 pm  34 35.7  116 14.2  2.1  31 mi. N of Joshua Tree, CA      
 8/1   1:55 am  34 57.4  119 33.0  2.5  13 mi. SSW of Taft, CA           
 8/1   4:09 am  34 27.9  116 18.1  2.5  22 mi. N of Joshua Tree, CA      
 8/1   5:26 am  32  1.9  114 57.5  2.6  49 mi. SSW of Yuma, AZ           
 8/1   6:40 am  34 48.1  116 16.0  3.3  33 mi. SSW of Baker, CA          
 8/1   8:35 am  34 48.3  116 16.2  2.6  33 mi. SSW of Baker, CA          
 8/1  11:39 am  34 36.5  116 18.1  2.3  32 mi. N of Joshua Tree, CA      
 8/1  12:53 pm  33 55.6  118 21.5  3.0  Under Hawthorne, CA              
                                        FELT from Hollywood to Torrance
 8/1   3:40 pm  34 43.6  116 22.6  2.3  40 mi. N of Joshua Tree, CA      
 8/1   6:26 pm  36 19.3  118  3.2  2.2  3 mi. NW of Olancha, CA          
 8/2   1:14 am  34 30.3  116 31.0  2.2  27 mi. N of Yucca Valley, CA     
 8/2   2:09 am  34 48.1  116 16.0  2.1  33 mi. SSW of Baker, CA          
 8/2   3:18 am  36  2.9  117 44.1  2.1  11 mi. E of Coso Junction, CA    
 8/2   9:18 am  33 49.4  116 59.8  2.5  5 mi. NNW of Hemet, CA           
 8/2   4:01 pm  34 48.4  116 16.1  3.0  33 mi. SSW of Baker, CA          
 8/2  10:39 pm  34 51.6  116 26.1  2.0  34 mi. SW of Baker, CA           
 8/3  12:06 am  36 19.5  118  2.2  3.2  3 mi. NNW of Olancha, CA         
 8/3   7:47 am  36 21.1  118  3.9  2.1  5 mi. NW of Olancha, CA          
 8/3   8:26 am  33  4.9  115 35.3  2.1  3 mi. NNE of Westmorland, CA     
 8/3  10:50 am  34 48.2  116 16.1  2.7  33 mi. SSW of Baker, CA          
 8/3  12:12 pm  33 50.8  116 50.7  2.2  5 mi. SSE of Banning, CA         
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