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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 = Fri Jul 3 23:00:05 PDT 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
 1.4  2009/07/03 14:08:45 33.974N 117.720W 13.7    6 km ( 4 mi) SSW of Chino, CA
 1.7  2009/07/03 09:04:24 33.994N 118.381W 13.2    1 km ( 1 mi) SW  of Baldwin Hills, CA
 1.5  2009/07/02 12:24:04 33.714N 117.338W  0.0    5 km ( 3 mi) N   of Lake Elsinore, CA
 1.2  2009/07/01 18:02:30 33.982N 117.166W 14.9    8 km ( 5 mi) S   of Redlands, CA
 1.3  2009/07/01 11:01:55 33.765N 117.521W  7.0   13 km ( 8 mi) SSE of Corona, CA
 1.3  2009/06/30 15:35:34 33.041N 118.066W  6.0   36 km (22 mi) NE  of San Clemente Is., CA (SE tip)
 0.7  2009/06/28 18:36:38 33.959N 117.198W  6.0   11 km ( 7 mi) S   of Redlands, CA
 1.4  2009/06/28 16:01:09 33.970N 117.764W 14.0    5 km ( 3 mi) SE  of Diamond Bar, CA
 1.4  2009/06/28 04:54:34 32.838N 117.236W 16.5    2 km ( 1 mi) SE  of La Jolla, CA
 1.0  2009/06/28 04:54:30 32.833N 117.245W 16.8    2 km ( 1 mi) SSE of La Jolla, CA
 0.9  2009/06/27 18:41:25 33.836N 117.014W 14.2   11 km ( 7 mi) NNW of Hemet, CA
 2.6  2009/06/27 04:45:12 33.931N 117.817W 17.5    5 km ( 3 mi) N   of Yorba Linda, 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)



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