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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 = Sat Aug 24 22:00:03 PDT 2019
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
 0.8 2019/08/23 23:38:20 33.517N 117.123W 25.6    4 km ( 2 mi) NE  of Temecula, CA
 0.9 2019/08/23 20:04:41 33.843N 117.432W 11.1    8 km ( 5 mi) WSW of Woodcrest, CA
 1.2 2019/08/23 11:04:45 33.850N 117.663W  7.8    9 km ( 6 mi) WSW of Corona, CA
 0.6 2019/08/23 10:17:39 33.856N 117.657W  8.4    8 km ( 5 mi) W   of Corona, CA
 1.2 2019/08/22 10:03:34 33.819N 117.484W  0.5    4 km ( 2 mi) SSE of Quarry at CORONA  (Probable quarry explosion)
 0.8 2019/08/22 05:08:24 33.965N 117.160W 12.8    8 km ( 5 mi) NE  of Moreno Valley, CA
 1.2 2019/08/22 02:57:20 33.987N 117.215W 12.3    7 km ( 4 mi) N   of Moreno Valley, CA
 1.2 2019/08/21 23:33:10 33.984N 117.217W 12.6    7 km ( 4 mi) N   of Moreno Valley, CA
 0.8 2019/08/21 14:58:58 33.987N 117.215W 13.2    7 km ( 4 mi) N   of Moreno Valley, CA
 1.2 2019/08/21 14:53:30 33.984N 117.212W 12.3    7 km ( 4 mi) NNE of Moreno Valley, CA
 0.9 2019/08/21 14:40:23 33.988N 117.223W 13.9    7 km ( 4 mi) N   of Moreno Valley, CA
 1.5 2019/08/21 05:18:26 33.984N 117.217W 12.5    6 km ( 4 mi) N   of Moreno Valley, CA
 0.7 2019/08/21 05:04:54 33.984N 117.215W 12.8    7 km ( 4 mi) N   of Moreno Valley, CA
 0.8 2019/08/21 04:23:10 33.985N 117.218W 13.2    7 km ( 4 mi) N   of Moreno Valley, CA
 1.4 2019/08/20 13:15:18 33.865N 117.506W -0.5    2 km ( 1 mi) NNW of Quarry at CORONA  (Probable quarry explosion)
 0.6 2019/08/20 13:00:39 32.834N 117.047W -0.1    2 km ( 1 mi) WNW of Quarry at CPE-3  (Probable quarry explosion)
 1.5 2019/08/20 10:06:43 33.710N 117.350W  1.7    5 km ( 3 mi) NNW of Lake Elsinore, CA
 0.9 2019/08/19 15:56:17 33.870N 117.510W -0.5    2 km ( 1 mi) NNW of Quarry at CORONA  (Probable quarry explosion)
 1.2 2019/08/19 02:42:13 32.581N 117.051W 14.8    3 km ( 2 mi) NNW of San Ysidro, CA
 1.1 2019/08/18 05:35:20 33.886N 117.834W  9.3    2 km ( 1 mi) W   of Yorba Linda, CA

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Data Sources

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



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