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Brown lines represent known hazardous faults or fault zones. White lines are roads.
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Update time = Fri Nov 20 18:00:03 PST 2009
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

 1.6  2009/11/20 10:20:25 38.064N 120.414W  0.0    3 km ( 2 mi) NNW of Columbia, CA
 0.9  2009/11/18 08:43:03 39.440N 120.280W  8.0   15 km ( 9 mi) NW  of Truckee, CA
 2.3  2009/11/16 03:29:07 38.716N 119.616W  0.8   14 km ( 9 mi) E   of Markleeville, CA
 0.8  2009/11/15 19:46:11 38.620N 119.703W  4.4   11 km ( 7 mi) SE  of Markleeville, CA
 2.3  2009/11/15 07:03:24 38.031N 120.331W 17.0    6 km ( 4 mi) E   of Columbia, CA
 1.6  2009/11/14 22:00:37 39.161N 119.625W  6.5    9 km ( 6 mi) SSW of Dayton, NV
 1.7  2009/11/14 14:31:14 38.721N 119.607W  1.1   15 km (10 mi) E   of Markleeville, CA
 0.4  2009/11/13 22:47:29 39.417N 120.177W  6.9   10 km ( 6 mi) N   of Truckee, CA

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

Data Sources

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