Southern California Earthquakes in the Past Week

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

July 16, 1999


The time period covered is 5 pm on Thursday, July 8 (PDT) through 5 pm on Thursday, July 15 (PDT). During this period, we detected and analysed 240 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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 7/8   5:14 pm  33 15.4  115 38.4  2.2  6 mi. N of Obsidian Butte, CA       
 7/9   6:04 am  33 59.8  117  0.8  2.0  2 mi. SSE of Yucaipa, CA            
 7/9   5:47 pm  32 42.1  115 24.8  2.1  5 mi. ENE of Calexico, CA           
 7/9  11:52 pm  33 51.6  118 16.3  2.6  2 mi. N of Carson, CA               
 7/10 12:01 am  33 20.6  116 12.6  2.2  11 mi. ENE of Borrego Springs, CA   
 7/10  9:16 am  34 18.5  116 27.1  2.0  13 mi. N of Yucca Valley, CA        
 7/10 12:18 pm  33 57.8  116 21.7  2.9  8 mi. E of Desert Hot Springs, CA   
 7/11 12:42 am  33 20.0  116 11.9  2.7  11 mi. ENE of Borrego Springs, CA   
 7/11  1:52 am  35 44.0  118 29.0  2.2  6 mi. N of town of Lake Isabella, CA
 7/11  3:57 am  32 48.3  117 26.4  2.2  11 mi. W of Mission Beach, CA       
 7/11  4:43 am  33 27.8  116 24.8  2.6  14 mi. N of Borrego Springs, CA     
 7/11  6:11 am  34  2.7  117 15.3  2.3  Under Loma Linda, CA                
 7/11  8:19 am  32 33.3  116 10.1  2.1  16 mi. SW of Ocotillo, CA           
 7/11  8:44 am  34 26.0  116 30.5  2.2  22 mi. N of Yucca Valley, CA        
 7/11 11:20 am  35 43.8  118 28.7  4.4  6 mi. N of town of Lake Isabella, CA
                                        FELT
 7/11 11:22 am  35 43.9  118 28.8  3.7  6 mi. N of town of Lake Isabella, CA
 7/11 11:29 am  35 44.2  118 28.9  3.4  6 mi. N of town of Lake Isabella, CA
 7/11 11:58 am  35 43.7  118 28.7  2.6  6 mi. N of town of Lake Isabella, CA
 7/11 12:06 pm  35 44.4  118 29.0  2.2  7 mi. N of town of Lake Isabella, CA
 7/11  1:26 pm  35 43.9  118 29.4  2.2  6 mi. N of town of Lake Isabella, CA
 7/11  1:33 pm  35 44.1  118 28.9  2.9  6 mi. N of town of Lake Isabella, CA
 7/11  1:52 pm  35 45.0  118 29.3  2.2  7 mi. N of town of Lake Isabella, CA
 7/11  2:48 pm  35 44.2  118 29.4  2.6  6 mi. N of town of Lake Isabella, CA
 7/11  3:16 pm  32 36.4  116  9.2  3.4  12 mi. SW  of Ocotillo, CA          
 7/11  4:41 pm  35 44.2  118 29.1  2.3  7 mi. N of town of Lake Isabella, CA
 7/11  4:41 pm  35 43.7  118 28.8  2.2  6 mi. N of town of Lake Isabella, CA
 7/11  7:12 pm  35 43.5  118 28.7  2.1  6 mi. N of town of Lake Isabella, CA
 7/11  7:23 pm  33  7.0  115 40.1  2.0  4 mi. SSW of Obsidian Butte, CA     
 7/11  8:03 pm  33  0.7  117 46.7  2.7  26 mi. WSW of Oceanside, CA         
 7/11  8:45 pm  35 44.3  118 28.7  2.7  7 mi. N of town of Lake Isabella, CA
 7/12 12:40 am  35 44.3  118 28.7  2.3  7 mi. N of town of Lake Isabella, CA
 7/12 12:51 am  35 43.8  118 29.0  2.0  6 mi. N of town of Lake Isabella, CA
 7/12  2:38 am  35 44.3  118 28.6  2.1  7 mi. N of town of Lake Isabella, CA
 7/12  3:29 am  33 22.5  116 24.6  2.1  8 mi. NNW of Borrego Springs, CA    
 7/12  3:35 am  35 44.3  118 28.7  2.1  7 mi. N of town of Lake Isabella, CA
 7/12  4:05 am  32 36.0  116  8.3  2.0  12 mi. SW  of Ocotillo, CA          
 7/12  5:37 am  33  6.3  115 36.8  2.1  4 mi. N of Westmorland, CA          
 7/12  6:59 am  32 52.5  115 30.5  2.1  6 mi. SSE of Brawley, CA            
 7/12  7:36 am  35 44.0  118 28.6  3.0  6 mi. N of town of Lake Isabella, CA
 7/12  7:51 am  32 53.1  115 30.4  2.7  5 mi. SSE of Brawley, CA            
 7/12  8:47 am  35 43.8  118 28.9  2.9  6 mi. N of town of Lake Isabella, CA
 7/12 10:44 am  32 52.5  115 30.0  2.5  6 mi. SSE of Brawley, CA            
 7/12 10:46 am  32 53.5  115 30.7  2.2  4 mi. SSE of Brawley, CA            
 7/12  2:54 pm  32 52.1  115 30.4  2.4  5 mi. NNE of El Centro, CA          
 7/13  3:42 am  33  0.5  115 57.3  2.6  13 mi. SE of Ocotillo Wells, CA     
 7/13  3:57 am  34 22.4  117 39.2  2.0  2 mi. WNW of Wrightwood, CA         
 7/13  4:33 am  35 44.2  118 28.6  2.0  6 mi. N of town of Lake Isabella, CA
 7/13  1:39 pm  35 43.5  118 29.1  2.1  6 mi. N of town of Lake Isabella, CA
 7/13  3:17 pm  32 53.8  115 30.4  2.4  4 mi. SSE of Brawley, CA            
 7/13  6:43 pm  32 53.3  115 30.3  2.5  5 mi. SSE of Brawley, CA
					FELT in Imperial Valley            
 7/13  7:29 pm  32 53.0  115 30.6  2.0  5 mi. SSE of Brawley, CA            
 7/13  8:39 pm  32 52.7  115 30.1  2.2  6 mi. SSE of Brawley, CA            
 7/13 11:17 pm  33 11.4  115 33.9  2.9  4 mi. SW of Niland, CA              
 7/14 12:57 am  32 53.6  115 30.5  3.1  4 mi. SSE of Brawley, CA            
                                        FELT in Imperial Valley
 7/14  2:20 am  33  1.9  115 53.5  2.6  17 mi. SSE of Salton City, CA       
 7/14  3:41 am  33 14.9  115 59.5  2.3  2 mi. SW of Salton City, CA         
 7/14  4:12 am  34  3.3  119 15.8  2.3  6 mi. SSW of Port Hueneme, CA       
 7/14  9:28 am  32 48.7  117 25.5  2.2  10 mi. WSW of La Jolla, CA          
 7/14  9:46 am  35 59.3  117 52.6  3.2  5 mi. SE of Coso Junction, CA       
 7/14  9:52 am  34 58.3  116 48.8  2.1  13 mi. ENE of Barstow, CA           
 7/14 10:59 am  34 30.1  120 39.7  2.5  5 mi. S of Pt. Arguello, CA         
 7/14  4:09 pm  35 59.7  117 52.1  2.2  5 mi. SE of Coso Junction, CA       
 7/14  5:24 pm  32 35.2  116  9.2  2.1  13 mi. SW of Ocotillo, CA           
 7/14  8:14 pm  35 59.4  117 52.5  2.4  5 mi. SE of Coso Junction, CA       
 7/14  8:16 pm  35 59.5  117 52.5  2.3  5 mi. SE of Coso Junction, CA       
 7/14  9:02 pm  35 43.5  118 28.4  3.1  6 mi. N of town of Lake Isabella, CA
 7/15  1:15 am  32 52.5  115 30.3  2.4  6 mi. SSE of Brawley, CA            
 7/15 10:35 am  33 10.2  115 36.0  2.4  2 mi. E of Obsidian Butte, CA       
 7/15 11:53 am  34 17.4  118 26.1  2.0  Under San Fernando, CA              
 7/15  3:32 pm  33 30.1  116 33.6  2.1  7 mi. ESE of Anza, CA               
 7/15  3:52 pm  34 10.1  116 25.7  2.0  3 mi. NNE of Yucca Valley, CA       
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