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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 Mar 21 10:00:04 PDT 2010
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  2010/03/21 09:13:53 37.070N 114.818W  8.0   20 km (13 mi) NW  of Hoya, NV
 1.6  2010/03/20 12:38:36 37.310N 114.782W  0.0   19 km (12 mi) S   of Helene, NV
 1.3  2010/03/18 06:41:23 37.231N 115.517W  6.6   35 km (22 mi) WSW of Alamo, NV
 1.8  2010/03/17 12:56:29 37.936N 115.529W  4.5   33 km (20 mi) NNE of Tempiute, NV
 1.1  2010/03/16 23:01:32 37.321N 115.535W  0.0   33 km (21 mi) W   of Alamo, NV
 1.2  2010/03/15 23:41:03 37.260N 115.514W  1.0   33 km (21 mi) WSW of Alamo, NV
 1.3  2010/03/15 23:39:22 37.228N 115.535W 15.8   36 km (23 mi) WSW of Alamo, NV
 1.6  2010/03/15 21:46:01 37.941N 115.603W  1.1   32 km (20 mi) N   of Tempiute, NV
 1.9  2010/03/15 08:14:23 37.218N 115.530W 10.7   36 km (23 mi) WSW of Alamo, NV

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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)