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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 = Mon May 12 3:00:03 PDT 2008
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

 1.0  2008/05/11 21:35:50 36.034N 120.626W  1.9   23 km (14 mi) NW  of Parkfield, CA
 2.3  2008/05/10 08:42:29 36.242N 120.805W  7.0   23 km (14 mi) SSW of New Idria, CA
 2.1  2008/05/10 03:11:21 36.172N 120.765W  0.7   21 km (13 mi) NE  of San Ardo, CA
 1.7  2008/05/10 02:08:10 36.424N 120.892W 18.8   20 km (12 mi) W   of New Idria, CA
 2.5  2008/05/09 17:01:19 36.013N 120.574W  4.2   18 km (11 mi) NW  of Parkfield, CA
 0.7  2008/05/09 15:45:08 36.008N 120.586W  3.4   18 km (11 mi) NW  of Parkfield, CA
 0.9  2008/05/08 01:52:29 36.029N 120.615W  0.3   22 km (14 mi) NW  of Parkfield, CA
 1.4  2008/05/07 17:54:22 36.042N 120.644W  1.8   23 km (15 mi) E   of San Ardo, CA
 1.9  2008/05/07 14:07:17 36.264N 120.841W  8.4   23 km (14 mi) SW  of New Idria, CA
 2.0  2008/05/07 07:55:23 36.040N 120.591W  5.2   21 km (13 mi) NW  of Parkfield, CA
 1.4  2008/05/05 12:48:31 36.028N 120.611W  0.0   21 km (13 mi) NW  of Parkfield, CA

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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)