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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 = Sun Nov 23 1:00:03 PST 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
 1.8  2014/11/21 13:02:25 37.328N 122.106W  0.2    6 km ( 4 mi) S   of Los Altos, CA
 2.6  2014/11/20 03:46:32 37.983N 122.054W 17.3    2 km ( 1 mi) WNW of Concord, CA
 1.0  2014/11/20 03:09:31 37.907N 122.060W  9.5    0 km ( 0 mi) E   of Walnut Creek, CA
 1.5  2014/11/19 11:04:33 37.306N 122.119W  1.6    8 km ( 5 mi) WSW of Cupertino, CA
 2.1  2014/11/18 11:15:05 37.802N 122.595W 10.2   13 km ( 8 mi) SSW of Mill Valley, CA
 1.3  2014/11/18 05:48:45 37.372N 122.189W  6.0    4 km ( 3 mi) ESE of Portola Valley, CA
 1.6  2014/11/18 00:50:23 37.982N 122.061W 15.2    3 km ( 2 mi) W   of Concord, CA
 1.8  2014/11/17 14:25:17 37.977N 122.059W 15.0    3 km ( 2 mi) W   of Concord, CA
 2.8  2014/11/17 12:20:29 37.980N 122.053W 17.1    2 km ( 1 mi) W   of Concord, CA
 1.8  2014/11/17 02:29:12 37.710N 122.555W  9.1    8 km ( 5 mi) W   of Daly City, CA

Special maps:
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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