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Maps are updated within about 5 minutes of an earthquake or once an hour.
Brown lines represent known hazardous faults or fault zones. White lines are roads.
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Update time = Thu Sep 18 6:00:03 PDT 2014
Here are the earthquakes appearing on this map, most recent at top ...

 MAG    DATE    LOCAL-TIME  LAT     LON    DEPTH    LOCATION
        y/m/d     h:m:s     deg     deg     km
 1.7  2014/09/15 18:57:09 40.232N 121.169W  8.2   10 km ( 6 mi) SSE of Chester, CA
 2.4  2014/09/15 00:39:57 40.235N 121.171W  0.1   10 km ( 6 mi) SSE of Chester, CA
 1.8  2014/09/14 02:36:34 40.423N 121.542W  6.6   16 km (10 mi) SE  of Viola, CA
 0.5  2014/09/14 01:07:41 40.417N 121.543W  5.4   16 km (10 mi) SE  of Viola, CA
 0.2  2014/09/13 19:50:16 39.627N 120.723W 11.7   30 km (19 mi) SW  of Portola, CA
 1.9  2014/09/13 06:26:20 40.176N 121.039W  1.6    9 km ( 5 mi) WNW of Greenville, CA
 1.7  2014/09/13 04:09:28 39.829N 120.704W 13.6   20 km (13 mi) W   of Portola, CA
 0.1  2014/09/12 23:08:51 39.243N 120.101W  9.4    7 km ( 4 mi) W   of Kings Beach, CA
 1.8  2014/09/12 21:16:18 40.228N 121.102W  3.7   12 km ( 7 mi) SW  of Westwood, CA
 1.2  2014/09/12 01:06:38 40.227N 121.188W 14.3   10 km ( 6 mi) SSE of Chester, CA
 1.1  2014/09/11 09:35:25 39.234N 120.099W  6.1    6 km ( 4 mi) W   of Kings Beach, CA

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Long Valley || Los Angeles || San Francisco Index map || big earthquake list || all earthquake list || glossary of terms ||

Data Sources

US and World - USGS/NEIC = National Earthquake Information Center
Northern California - UCB = University of California, Berkeley
Southern California - Caltech = California Institute of Technology
Southern California - UCSD = University of California, San Diego
Nevada - UNR = University of Nevada, Reno
Offshore = West Coast & Alaska Tsunami Warning Center
...all members of the Advanced National Seismic System (ANSS)



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