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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 = Tue Feb 9 10:00:01 PST 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

 2.1  2010/02/08 21:14:40 34.714N 116.301W  6.3   13 km ( 8 mi) W   of Ludlow, CA
 1.2  2010/02/08 10:48:27 34.344N 116.862W  2.1    9 km ( 5 mi) N   of Big Bear City, CA
 1.1  2010/02/06 00:06:02 34.024N 116.609W 12.2    3 km ( 2 mi) SW  of Morongo Valley, CA
 1.2  2010/02/05 18:27:40 34.564N 116.241W  8.8   19 km (12 mi) SSW of Ludlow, CA
 0.9  2010/02/05 02:03:20 34.002N 116.989W 16.6    5 km ( 3 mi) SE  of Yucaipa, CA
 1.1  2010/02/04 19:19:47 34.411N 116.180W  7.0   33 km (20 mi) NNW of Twentynine Palms, CA
 1.3  2010/02/03 15:57:58 34.334N 116.455W  4.9   25 km (15 mi) N   of Yucca Valley, CA
 1.7  2010/02/03 09:25:46 35.011N 116.944W  7.0   15 km (10 mi) NNE of Barstow, CA
 1.2  2010/02/03 06:36:34 34.038N 116.923W 16.7   10 km ( 6 mi) E   of Yucaipa, CA
 0.9  2010/02/02 21:40:23 34.040N 116.745W 12.9   10 km ( 6 mi) SE  of Mt. San Gorgonio, CA
 1.9  2010/02/02 11:25:45 34.469N 116.476W  4.6   40 km (25 mi) NNW of Joshua Tree, 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)