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Maps are updated within about 5 minutes of an earthquake or once an hour.
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Update time = Fri Mar 22 7:00:03 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
 1.1 2019/03/21 21:29:36 34.068N 117.496W  2.7    5 km ( 3 mi) SW  of Fontana, CA
 1.5 2019/03/21 19:26:28 34.069N 117.491W  3.1    4 km ( 3 mi) SW  of Fontana, CA
 1.5 2019/03/21 12:46:19 34.380N 117.588W  9.1    5 km ( 3 mi) ENE of Wrightwood, CA
 1.3 2019/03/21 10:39:22 34.083N 118.138W 10.2    2 km ( 1 mi) SW  of Alhambra, CA
 2.2 2019/03/21 06:56:46 33.815N 117.638W  5.2    9 km ( 6 mi) SW  of Corona, CA
 1.1 2019/03/21 02:57:29 34.434N 117.722W  5.9    7 km ( 4 mi) W   of Pinon Hills, CA
 0.9 2019/03/20 22:22:49 34.067N 117.493W  3.9    5 km ( 3 mi) SW  of Fontana, CA
 1.7 2019/03/20 20:11:34 33.965N 118.343W  8.7    1 km ( 1 mi) NNE of Inglewood, CA
 1.9 2019/03/20 19:58:04 33.974N 118.351W 10.5    2 km ( 1 mi) NNW of Inglewood, CA
 1.4 2019/03/20 18:20:31 34.381N 117.586W  8.5    5 km ( 3 mi) ENE of Wrightwood, CA
 0.8 2019/03/20 13:29:24 33.426N 117.033W 12.8    8 km ( 5 mi) NNE of Pala, CA
 1.1 2019/03/20 13:01:04 34.848N 118.791W -1.5    3 km ( 2 mi) W   of Quarry at GORMAN  (Probable quarry explosion)
 0.8 2019/03/20 12:44:30 33.894N 117.022W 12.2    6 km ( 4 mi) SW  of Beaumont, CA
 1.0 2019/03/20 12:43:57 33.891N 117.026W 12.4    6 km ( 4 mi) SW  of Beaumont, CA
 1.7 2019/03/20 10:15:18 33.855N 117.493W -0.5    1 km ( 1 mi) NE  of Quarry at CORONA  (Probable quarry explosion)
 0.8 2019/03/20 09:43:20 34.019N 117.450W -0.3   10 km ( 6 mi) WSW of Quarry at SLOVER  (Probable quarry explosion)
 2.2 2019/03/20 08:23:44 34.637N 118.512W  8.5    8 km ( 5 mi) SW  of Lake Hughes, CA
 1.7 2019/03/20 05:08:15 34.186N 117.507W  4.9    8 km ( 5 mi) S   of Lytle Creek, CA
 2.1 2019/03/19 17:34:13 33.714N 118.218W  7.4    7 km ( 5 mi) ESE of San Pedro, CA
 1.4 2019/03/19 13:31:55 33.854N 117.489W -0.5    1 km ( 1 mi) ENE of Quarry at CORONA  (Probable quarry explosion)
 1.2 2019/03/19 11:55:00 34.999N 118.181W -0.8    2 km ( 1 mi) SW  of Quarry at TPO-DBM  (Probable quarry explosion)
 1.0 2019/03/19 02:18:29 34.052N 117.250W 14.9    1 km ( 1 mi) ENE of Loma Linda, CA
 0.9 2019/03/18 19:35:44 33.782N 117.746W 13.5    5 km ( 3 mi) ENE of North Tustin, CA
 1.2 2019/03/18 11:51:02 34.998N 118.189W -0.8    2 km ( 1 mi) SW  of Quarry at TPO-DBM  (Probable quarry explosion)
 1.2 2019/03/17 21:19:15 33.784N 117.746W 12.7    5 km ( 3 mi) ENE of North Tustin, CA
 1.8 2019/03/17 15:40:19 34.555N 117.441W  9.1    4 km ( 3 mi) SW  of Adelanto, CA
 1.1 2019/03/17 14:18:17 34.084N 117.224W  5.3    5 km ( 3 mi) NW  of Redlands, CA
 1.5 2019/03/17 12:21:12 34.062N 117.498W  3.2    5 km ( 3 mi) SW  of Fontana, CA
 1.7 2019/03/17 02:28:24 33.981N 117.245W 14.2    6 km ( 4 mi) NNW of Moreno Valley, CA
 1.5 2019/03/16 23:37:48 34.613N 118.641W  8.8   14 km ( 9 mi) N   of Castaic, CA
 0.7 2019/03/16 19:51:26 34.052N 117.237W 17.1    2 km ( 1 mi) E   of Loma Linda, CA
 2.4 2019/03/16 13:25:31 33.847N 118.466W 12.4    6 km ( 4 mi) WSW of Hermosa Beach, CA
 1.6 2019/03/16 11:28:55 33.781N 117.856W 17.1    3 km ( 2 mi) SW  of Orange, CA
 1.4 2019/03/16 11:28:04 33.786N 117.851W 15.6    3 km ( 2 mi) SW  of Orange, CA
 1.7 2019/03/16 11:10:50 33.782N 117.739W 13.7    5 km ( 3 mi) ENE of North Tustin, CA
 1.3 2019/03/16 09:28:55 34.414N 117.690W  7.8    5 km ( 3 mi) WSW of Pinon Hills, CA
 2.3 2019/03/16 08:45:27 34.207N 117.565W  9.0    8 km ( 5 mi) SW  of Lytle Creek, CA
 1.3 2019/03/16 08:25:09 34.240N 118.480W 12.3    4 km ( 2 mi) NW  of Panorama City, CA
 1.3 2019/03/16 04:58:14 34.063N 117.494W  3.5    5 km ( 3 mi) SW  of Fontana, CA
 0.9 2019/03/16 01:11:40 34.112N 117.305W 15.2    2 km ( 1 mi) SSW of San Bernardino, CA
 1.0 2019/03/15 21:35:32 34.050N 117.249W 17.0    1 km ( 1 mi) E   of Loma Linda, CA
 0.9 2019/03/15 21:27:24 34.050N 117.245W 14.5    2 km ( 1 mi) E   of Loma Linda, CA
 2.4 2019/03/15 21:18:16 34.049N 117.239W 18.1    2 km ( 1 mi) E   of Loma Linda, CA
 1.0 2019/03/15 15:43:24 34.047N 117.244W 18.8    2 km ( 1 mi) E   of Loma Linda, CA
 1.1 2019/03/15 13:54:52 33.925N 117.507W -0.5    3 km ( 2 mi) N   of Quarry at GAV  (Probable quarry explosion)
 1.2 2019/03/15 12:01:25 34.163N 117.601W  9.2    5 km ( 3 mi) NNW of Rancho Cucamonga, CA

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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
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