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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 Apr 21 15:00:02 PDT 2018
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
 1.1 2018/04/21 14:13:26 34.346N 117.139W 18.3   12 km ( 7 mi) NNE of Lake Arrowhead, CA
 1.0 2018/04/21 12:49:17 34.025N 117.239W  6.4    3 km ( 2 mi) SE  of Loma Linda, CA
 0.9 2018/04/21 12:13:29 34.176N 117.234W  1.9    6 km ( 4 mi) NNW of Highland, CA
 1.0 2018/04/21 09:42:42 34.018N 117.228W  5.0    4 km ( 3 mi) SE  of Loma Linda, CA
 0.9 2018/04/21 09:05:12 34.185N 117.237W  1.6    7 km ( 4 mi) NNW of Highland, CA
 1.2 2018/04/21 08:59:33 34.182N 117.232W  2.1    6 km ( 4 mi) NNW of Highland, CA
 1.5 2018/04/21 07:23:08 34.187N 117.229W  2.0    7 km ( 4 mi) NNW of Highland, CA
 1.6 2018/04/21 07:23:08 34.204N 117.250W  2.5    5 km ( 3 mi) SE  of Crestline, CA
 0.9 2018/04/21 07:08:12 34.179N 117.241W  2.1    6 km ( 4 mi) NNW of Highland, CA
 2.3 2018/04/21 07:05:39 34.187N 117.233W  2.7    7 km ( 4 mi) NNW of Highland, CA
 0.7 2018/04/21 07:01:54 34.185N 117.244W  3.5    7 km ( 4 mi) NNW of Highland, CA
 1.4 2018/04/21 04:35:57 34.015N 117.230W  8.6    5 km ( 3 mi) SE  of Loma Linda, CA
 0.7 2018/04/21 04:24:44 34.020N 117.228W  5.9    4 km ( 3 mi) SE  of Loma Linda, CA
 0.7 2018/04/21 04:21:15 34.057N 117.539W 12.3    7 km ( 4 mi) NW  of Glen Avon, CA
 1.3 2018/04/21 02:49:30 34.363N 118.582W  9.9    9 km ( 6 mi) SW  of Santa Clarita, CA
 0.9 2018/04/20 22:04:24 34.017N 117.220W 11.0    5 km ( 3 mi) SE  of Loma Linda, CA
 0.9 2018/04/20 21:06:28 34.183N 117.235W  1.6    7 km ( 4 mi) NNW of Highland, CA
 1.0 2018/04/20 12:51:19 34.186N 117.238W  3.9    7 km ( 4 mi) NNW of Highland, CA
 1.1 2018/04/20 07:45:16 34.023N 117.118W 13.0    5 km ( 3 mi) SSE of Mentone, CA
 1.6 2018/04/20 04:11:06 34.229N 117.461W 11.3    5 km ( 3 mi) SE  of Lytle Creek, CA
 1.3 2018/04/19 18:50:00 34.113N 117.969W 10.2    3 km ( 2 mi) SSE of Duarte, CA
 1.1 2018/04/19 15:13:48 35.870N 117.802W  7.3   12 km ( 7 mi) SE  of Little Lake, CA
 0.5 2018/04/19 13:08:53 35.954N 117.667W  2.4   22 km (13 mi) E   of Little Lake, CA
 1.1 2018/04/19 12:55:43 35.992N 117.529W  2.3   27 km (17 mi) NNW of Searles Valley, CA
 1.4 2018/04/19 11:18:54 34.023N 117.216W 13.8    5 km ( 3 mi) SW  of Redlands, CA
 1.8 2018/04/19 07:54:20 34.107N 118.249W 11.4    2 km ( 1 mi) NE  of Silver Lake, CA
 1.5 2018/04/19 03:37:06 34.061N 117.275W 16.4    2 km ( 1 mi) NW  of Loma Linda, CA
 1.7 2018/04/18 16:20:21 35.034N 117.671W -0.8    1 km ( 1 mi) ENE of Quarry at BORON  (Probable quarry explosion)
 1.1 2018/04/18 11:34:57 34.044N 117.276W 13.7    1 km ( 1 mi) WSW of Loma Linda, CA
 1.1 2018/04/18 11:34:55 34.058N 117.257W 11.5    1 km ( 1 mi) NNE of Loma Linda, CA
 1.1 2018/04/18 07:57:27 35.958N 118.261W  2.4   27 km (17 mi) NNE of Kernville, CA
 1.5 2018/04/18 03:06:44 34.057N 117.266W 16.6    1 km ( 1 mi) NNW of Loma Linda, CA
 1.0 2018/04/17 21:27:32 35.940N 117.654W  2.5   23 km (14 mi) E   of Little Lake, CA
 0.5 2018/04/17 17:31:26 34.029N 117.136W 16.9    5 km ( 3 mi) S   of Mentone, CA
 0.7 2018/04/17 11:19:49 35.767N 117.668W  8.6   16 km (10 mi) N   of Ridgecrest, CA
 1.0 2018/04/17 10:39:23 34.084N 117.274W 13.4    4 km ( 2 mi) ENE of Colton, CA
 1.6 2018/04/16 20:56:52 35.845N 118.458W  8.6   11 km ( 7 mi) NNW of Kernville, CA
 1.7 2018/04/16 06:28:26 35.692N 118.388W  4.4    6 km ( 4 mi) ESE of Wofford Heights, CA
 1.7 2018/04/16 04:07:34 34.204N 117.600W  9.7    9 km ( 6 mi) NNW of Rancho Cucamonga, CA
 1.6 2018/04/15 14:05:39 35.764N 117.743W  4.9   15 km ( 9 mi) NNE of Inyokern, CA
 0.8 2018/04/15 08:06:03 34.209N 117.415W  9.8    2 km ( 1 mi) SW  of Devore, CA
 1.2 2018/04/15 01:19:38 35.082N 118.875W 13.8   15 km ( 9 mi) SSW of Arvin, CA
 1.6 2018/04/14 21:38:49 34.027N 117.238W 17.0    3 km ( 2 mi) SE  of Loma Linda, CA
 1.0 2018/04/14 21:15:03 34.031N 117.233W 16.3    3 km ( 2 mi) SE  of Loma Linda, CA
 1.0 2018/04/14 19:58:06 34.101N 118.561W  5.8    4 km ( 3 mi) ENE of Topanga, CA
 1.5 2018/04/14 19:40:13 34.033N 117.236W 15.8    3 km ( 2 mi) SE  of Loma Linda, CA
 0.8 2018/04/14 18:40:11 34.050N 117.247W 14.0    1 km ( 1 mi) E   of Loma Linda, CA
 1.0 2018/04/14 18:18:32 34.119N 118.455W  5.8    4 km ( 2 mi) S   of Sherman Oaks, 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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