Southern California Earthquakes in the Past Week

Nick Scheckel , Seismological Laboratory
Lucy Jones, U. S. Geological Survey
California Institute of Technology

October 8, 1998


The time period covered is 5 pm on Thursday, October 1, through 5 pm on Thursday, October 8. During this period, we detected and analysed 176 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(PDT) Lat.     Long.     Mag. Descriptive location
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10/ 1  7:41 pm  34  3.8  117 31.2  2.2  5 mi. SE of Rancho Cucamonga, CA     
10/ 1  9:30 pm  34  7.0  116 55.6  2.4  5 mi. W of Mt. San Gorgonio, CA      
10/ 2 12:45 am  34  6.8  116 55.6  2.2  5 mi. W of Mt. San Gorgonio, CA      
10/ 2 10:02 am  34  6.2  116 55.2  2.2  5 mi. W of Mt. San Gorgonio, CA      
10/ 2 11:42 am  34 19.5  116 50.5  2.0  4 mi. N of Big Bear City, CA         
10/ 2 12:44 pm  34 19.6  116 50.7  2.2  4 mi. N of Big Bear City, CA         
10/ 2  1:41 pm  32 39.3  115 59.0  2.7  5 mi. S of Ocotillo, CA              
10/ 2  3:07 pm  34 35.5  116 37.2  2.3  21 mi. ENE of Lucerne Valley, CA     
10/ 2  5:04 pm  34 27.8  117 56.4  3.0  12 mi. SE of Palmdale, CA            
10/ 3  3:54 am  34  2.8  117 16.9  2.4  1 mi. W of Loma Linda, CA            
10/ 3  3:55 am  34  2.8  117 17.0  2.3  1 mi. W of Loma Linda, CA            
10/ 3  3:57 am  34  2.7  117 16.8  2.3  1 mi. W of Loma Linda, CA            
10/ 3  5:34 am  34  9.9  116 25.6  3.0  3 mi. NNE of Yucca Valley, CA        
10/ 3  6:28 am  34  2.7  117 16.9  2.0  1 mi. W of Loma Linda, CA            
10/ 3  7:40 pm  35 43.6  118 17.8  2.0  11 mi. ENE of town of Lake Isabella, CA
10/ 4  4:22 am  33 13.7  116  1.3  2.0  4 mi. SW of Salton City, CA          
10/ 4  6:16 am  33 24.7  116 22.8  2.6  10 mi. N of Borrego Springs, CA      
10/ 5 12:15 am  34 49.9  119  4.1  2.1  7 mi. W of Frazier Park, CA          
10/ 5  4:50 am  33 12.7  116  3.2  2.7  6 mi. NE of Ocotillo Wells, CA       
10/ 5  9:51 am  34 17.2  118 26.7  2.0  Under Pacoima, CA                   
10/ 6  4:08 am  34 51.9  119 11.9  2.2  14 mi. WNW of Frazier Park, CA       
10/ 6 10:56 pm  34 56.8  117  1.7  2.0  4 mi. N of Barstow, CA               
10/ 7 10:44 am  34  8.3  118 32.1  2.1  2 mi. SW of Encino, CA               
10/ 7  3:36 pm  34 27.8  117 56.3  2.2  12 mi. SE of Palmdale, CA            
10/ 8  9:09 am  33 28.2  118 24.7  2.1  10 mi. NNW of Avalon, Catalina Island, CA