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Update time = Mon May 21 0:00:02 PDT 2012
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  2012/05/20 21:09:03 34.260N 116.426W  5.4   17 km (10 mi) N   of Yucca Valley, CA
 1.8  2012/05/20 20:40:20 34.006N 116.847W 18.6    9 km ( 6 mi) NNE of Banning, CA
 1.7  2012/05/20 20:33:41 34.205N 116.425W  6.2   10 km ( 7 mi) N   of Yucca Valley, CA
 1.2  2012/05/20 19:25:13 34.031N 117.350W  0.1    6 km ( 3 mi) NNE of Riverside, CA
 1.5  2012/05/20 16:24:40 35.021N 117.680W  2.3    4 km ( 2 mi) NW  of Boron, CA
 1.2  2012/05/20 02:38:54 34.151N 116.715W  9.5   12 km ( 7 mi) ENE of Mt. San Gorgonio, CA
 1.3  2012/05/20 02:37:59 34.151N 116.717W  8.4   12 km ( 7 mi) ENE of Mt. San Gorgonio, CA
 1.6  2012/05/20 01:29:14 34.256N 117.016W  6.5   10 km ( 6 mi) NE  of Running Springs, CA
 1.3  2012/05/19 22:00:15 34.510N 116.352W 19.7   29 km (18 mi) SW  of Ludlow, CA
 1.2  2012/05/19 02:13:45 35.952N 117.644W  2.0   29 km (18 mi) ESE of Coso Junction, CA
 1.8  2012/05/19 01:58:38 35.769N 117.672W  1.1   16 km (10 mi) N   of Ridgecrest, CA
 2.3  2012/05/19 00:33:03 35.938N 117.642W  2.9   30 km (19 mi) ESE of Coso Junction, CA
 2.0  2012/05/18 19:35:13 34.960N 116.676W  0.5   33 km (20 mi) ENE of Barstow, CA
 1.0  2012/05/18 18:59:41 35.941N 117.647W  2.8   29 km (18 mi) ESE of Coso Junction, CA
 0.7  2012/05/18 13:37:45 35.779N 117.655W  5.5   18 km (11 mi) N   of Ridgecrest, CA
 1.4  2012/05/18 09:30:52 34.005N 117.576W  9.8   10 km ( 6 mi) SE  of Ontario, CA
 0.9  2012/05/18 09:24:56 34.001N 116.388W  2.7   11 km ( 7 mi) ENE of Desert Hot Springs, CA
 2.0  2012/05/18 09:24:43 34.331N 117.279W 15.2   10 km ( 6 mi) SSE of Hesperia, CA
 0.4  2012/05/18 04:25:20 35.943N 117.701W  5.4   25 km (16 mi) ESE of Coso Junction, CA
 1.8  2012/05/18 04:17:39 35.949N 117.703W  4.2   24 km (15 mi) ESE of Coso Junction, CA
 1.1  2012/05/18 03:45:55 34.255N 116.430W  3.8   16 km (10 mi) N   of Yucca Valley, CA
 0.4  2012/05/17 23:25:14 35.944N 117.704W  3.5   25 km (15 mi) ESE of Coso Junction, CA
 1.2  2012/05/17 23:23:31 35.947N 117.701W  4.6   25 km (15 mi) ESE of Coso Junction, CA
 1.1  2012/05/17 21:17:36 34.081N 116.797W 11.9    3 km ( 2 mi) SE  of Mt. San Gorgonio, CA
 1.0  2012/05/17 01:15:57 34.306N 116.445W 10.7   22 km (14 mi) N   of Yucca Valley, CA
 1.5  2012/05/17 00:55:39 34.476N 116.261W  0.0   29 km (18 mi) SSW of Ludlow, CA
 0.6  2012/05/17 00:07:58 34.331N 116.631W 14.2   22 km (13 mi) ENE of Big Bear City, CA
 1.1  2012/05/16 22:54:06 34.283N 116.864W 11.8    2 km ( 1 mi) NNW of Big Bear City, CA
 1.7  2012/05/16 11:07:22 34.620N 117.124W  0.0   18 km (11 mi) ENE of Victorville, CA
 1.9  2012/05/16 10:25:23 35.040N 117.674W  0.0    5 km ( 3 mi) NNW of Boron, CA
 1.3  2012/05/16 07:10:22 34.046N 117.527W 17.3    9 km ( 6 mi) SE  of Rancho Cucamonga, CA
 0.2  2012/05/15 16:37:16 35.959N 117.611W  7.0   30 km (19 mi) NW  of Trona, CA
 1.3  2012/05/15 14:52:38 34.093N 117.452W  4.7    2 km ( 1 mi) SW  of Fontana, CA
 1.3  2012/05/15 02:44:16 34.096N 116.759W 13.2    6 km ( 4 mi) E   of Mt. San Gorgonio, CA
 0.6  2012/05/15 01:31:55 35.981N 117.916W  3.9    8 km ( 5 mi) SSE of Coso Junction, CA
 0.9  2012/05/14 21:12:20 34.194N 116.812W  9.8    9 km ( 5 mi) SSE of Big Bear City, CA
 0.9  2012/05/14 20:52:05 35.764N 117.996W 11.3   32 km (20 mi) S   of Coso Junction, CA
 0.4  2012/05/14 17:39:12 35.973N 117.681W  2.6   25 km (16 mi) ESE of Coso Junction, CA
 1.5  2012/05/14 17:13:21 35.044N 117.682W  0.0    6 km ( 4 mi) NNW of Boron, CA
 1.5  2012/05/14 11:51:09 34.062N 117.851W 10.0    5 km ( 3 mi) SE  of Covina, CA
 1.1  2012/05/14 11:42:35 34.339N 116.854W  0.0    8 km ( 5 mi) N   of Big Bear City, CA
 0.4  2012/05/14 08:57:23 35.898N 117.666W  2.4   30 km (19 mi) ESE of Coso Junction, CA
 1.4  2012/05/14 06:02:03 34.041N 116.421W 11.0    8 km ( 5 mi) S   of Yucca Valley, CA
 1.1  2012/05/14 05:59:41 34.322N 117.080W  2.8   13 km ( 8 mi) NE  of Lake Arrowhead, CA
 1.3  2012/05/14 03:49:09 34.160N 116.424W  8.0    5 km ( 3 mi) N   of Yucca Valley, CA
 1.4  2012/05/14 02:36:05 35.879N 116.755W  5.9   44 km (27 mi) SE  of Telescope Peak, CA

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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)