Click on an earthquake on the above map for more information.
Click here to go to index map || big earthquake list || all earthquakes list
Special maps: Long Valley || Los Angeles || San Francisco
Map need updating? Try reloading the page to your browser.
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.
What happens when I click on an earthquake?

Click here for more info on the Long Valley volcano monitoring effort.

Update time = Thu May 23 21:00:04 PDT 2013
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  2013/05/23 18:42:02 37.644N 118.850W  7.5   11 km ( 7 mi) E   of Mammoth Lakes, CA
 0.5  2013/05/23 18:41:51 37.642N 118.847W  7.0   11 km ( 7 mi) E   of Mammoth Lakes, CA
 1.7  2013/05/23 17:42:28 37.550N 119.005W  1.0   11 km ( 7 mi) SSW of Mammoth Lakes, CA
 1.6  2013/05/23 08:45:18 37.560N 118.844W 10.6   14 km ( 9 mi) W   of Toms Place, CA
 1.4  2013/05/22 21:02:22 37.646N 118.904W  1.1    6 km ( 4 mi) E   of Mammoth Lakes, CA
 0.4  2013/05/22 19:40:57 37.629N 119.051W 15.3    7 km ( 5 mi) WSW of Mammoth Lakes, CA
 0.5  2013/05/22 19:40:11 37.632N 119.089W 15.6   10 km ( 7 mi) W   of Mammoth Lakes, CA
 0.5  2013/05/22 19:39:52 37.632N 119.062W 15.2    8 km ( 5 mi) WSW of Mammoth Lakes, CA
 0.5  2013/05/22 13:27:31 37.619N 118.853W  5.9   11 km ( 7 mi) ESE of Mammoth Lakes, CA
 1.3  2013/05/22 09:27:14 37.646N 118.938W  1.9    3 km ( 2 mi) E   of Mammoth Lakes, CA
 1.8  2013/05/22 09:17:15 37.655N 118.933W  3.0    4 km ( 2 mi) ENE of Mammoth Lakes, CA
 1.5  2013/05/22 09:09:36 37.654N 118.932W  3.1    4 km ( 2 mi) E   of Mammoth Lakes, CA
 1.7  2013/05/21 15:53:13 37.554N 119.001W  0.8   11 km ( 7 mi) SSW of Mammoth Lakes, CA
 0.3  2013/05/21 08:19:57 37.585N 118.963W 10.4    7 km ( 4 mi) S   of Mammoth Lakes, CA
 0.3  2013/05/21 06:41:44 37.587N 118.963W 10.2    7 km ( 4 mi) S   of Mammoth Lakes, CA
 0.7  2013/05/21 05:12:34 37.583N 118.964W  9.1    7 km ( 5 mi) S   of Mammoth Lakes, CA
 0.3  2013/05/21 04:55:31 37.584N 118.964W  9.6    7 km ( 4 mi) S   of Mammoth Lakes, CA
 0.7  2013/05/21 03:17:27 37.639N 118.938W  7.2    3 km ( 2 mi) ESE of Mammoth Lakes, CA
 0.3  2013/05/21 02:33:30 37.642N 118.938W  7.3    3 km ( 2 mi) ESE of Mammoth Lakes, CA
 1.4  2013/05/20 20:03:15 37.642N 118.936W  7.8    3 km ( 2 mi) ESE of Mammoth Lakes, CA
 1.1  2013/05/20 19:58:18 37.639N 118.939W  5.9    3 km ( 2 mi) ESE of Mammoth Lakes, CA
 1.1  2013/05/20 17:08:32 37.575N 118.790W  7.8   10 km ( 6 mi) W   of Toms Place, CA
 0.7  2013/05/20 16:11:49 37.563N 119.003W  3.5   10 km ( 6 mi) SSW of Mammoth Lakes, CA
 0.4  2013/05/20 12:45:49 37.677N 118.879W  5.8    9 km ( 5 mi) ENE of Mammoth Lakes, CA
 1.1  2013/05/20 12:12:25 37.664N 118.880W  4.8    8 km ( 5 mi) ENE of Mammoth Lakes, CA
 0.5  2013/05/20 12:03:59 37.523N 118.788W  7.8   10 km ( 7 mi) WSW of Toms Place, CA
 0.5  2013/05/20 10:17:36 37.678N 118.828W 11.8   13 km ( 8 mi) ENE of Mammoth Lakes, CA
 0.3  2013/05/20 10:04:49 37.645N 118.937W  8.8    3 km ( 2 mi) E   of Mammoth Lakes, CA
 0.7  2013/05/20 10:03:33 37.577N 118.888W  3.9   11 km ( 7 mi) SE  of Mammoth Lakes, CA
 0.5  2013/05/20 10:02:48 37.651N 118.845W  8.6   11 km ( 7 mi) E   of Mammoth Lakes, CA
 1.3  2013/05/20 09:51:31 37.578N 118.888W  3.1   11 km ( 7 mi) SE  of Mammoth Lakes, CA
 0.2  2013/05/20 07:59:45 37.643N 118.936W  7.8    3 km ( 2 mi) E   of Mammoth Lakes, CA
 0.7  2013/05/20 06:57:00 37.458N 118.753W  4.5   13 km ( 8 mi) SSW of Toms Place, CA
 0.8  2013/05/20 03:46:44 37.569N 118.826W  8.7   13 km ( 8 mi) W   of Toms Place, CA
 1.0  2013/05/20 02:13:16 37.638N 118.957W  6.6    2 km ( 1 mi) SE  of Mammoth Lakes, CA
 0.3  2013/05/20 00:45:42 37.519N 118.793W  6.6   11 km ( 7 mi) WSW of Toms Place, CA
 0.6  2013/05/19 23:02:35 37.474N 118.923W 10.8   20 km (12 mi) SSE of Mammoth Lakes, CA
 0.3  2013/05/19 22:49:05 37.513N 118.841W  7.2   15 km ( 9 mi) WSW of Toms Place, CA
 0.4  2013/05/19 21:51:52 37.517N 118.812W  6.9   13 km ( 8 mi) WSW of Toms Place, CA
 0.8  2013/05/19 21:49:14 37.531N 118.817W  6.7   13 km ( 8 mi) WSW of Toms Place, CA
 1.7  2013/05/19 19:58:30 37.533N 118.815W  6.7   12 km ( 8 mi) WSW of Toms Place, CA
 0.4  2013/05/19 17:41:59 37.489N 118.793W  7.0   13 km ( 8 mi) SW  of Toms Place, CA
 0.7  2013/05/19 17:14:20 37.525N 118.837W  6.2   14 km ( 9 mi) WSW of Toms Place, CA
 0.2  2013/05/19 13:57:36 37.635N 119.035W  3.4    6 km ( 4 mi) WSW of Mammoth Lakes, CA
 1.0  2013/05/19 12:35:41 37.521N 118.825W  6.2   14 km ( 8 mi) WSW of Toms Place, CA
 1.0  2013/05/19 09:56:19 37.539N 118.799W 12.7   11 km ( 7 mi) WSW of Toms Place, CA
 1.1  2013/05/18 23:58:19 37.665N 118.923W  3.8    5 km ( 3 mi) ENE of Mammoth Lakes, CA
 0.7  2013/05/18 23:12:30 37.665N 118.926W  4.3    4 km ( 3 mi) ENE of Mammoth Lakes, CA
 0.1  2013/05/18 23:12:20 37.690N 118.913W  7.3    7 km ( 4 mi) NE  of Mammoth Lakes, CA
 0.3  2013/05/18 22:40:40 37.635N 118.965W  7.3    2 km ( 1 mi) SSE of Mammoth Lakes, CA
 0.3  2013/05/18 20:01:22 37.644N 118.958W  6.7    1 km ( 1 mi) ESE of Mammoth Lakes, CA
 2.1  2013/05/18 12:37:37 37.475N 118.842W  8.7   17 km (11 mi) SW  of Toms Place, CA
 0.8  2013/05/18 12:06:13 37.476N 118.841W  8.2   17 km (11 mi) SW  of Toms Place, CA
 0.4  2013/05/18 11:33:44 37.547N 118.895W  2.4   13 km ( 8 mi) SSE of Mammoth Lakes, CA
 0.4  2013/05/18 11:29:53 37.681N 118.817W  3.3   14 km ( 9 mi) ENE of Mammoth Lakes, CA
 1.7  2013/05/18 11:21:19 37.551N 119.007W  1.8   11 km ( 7 mi) SSW of Mammoth Lakes, CA
 0.3  2013/05/18 09:15:00 37.630N 119.030W  6.3    6 km ( 3 mi) WSW of Mammoth Lakes, CA
 0.2  2013/05/18 09:03:37 37.626N 118.936W  7.6    4 km ( 3 mi) SE  of Mammoth Lakes, CA
 0.2  2013/05/18 06:42:02 37.553N 118.871W  9.7   14 km ( 9 mi) SE  of Mammoth Lakes, CA
 0.3  2013/05/18 04:06:06 37.574N 118.796W  8.3   10 km ( 6 mi) W   of Toms Place, CA
 0.4  2013/05/18 01:14:04 37.492N 118.817W  6.3   14 km ( 9 mi) WSW of Toms Place, CA
 1.3  2013/05/17 16:31:06 37.524N 118.826W  7.6   14 km ( 8 mi) WSW of Toms Place, CA
 0.3  2013/05/17 15:40:38 37.663N 118.897W  4.3    7 km ( 4 mi) ENE of Mammoth Lakes, CA
 0.7  2013/05/17 14:34:42 37.502N 118.864W  6.6   18 km (11 mi) WSW of Toms Place, CA
 0.9  2013/05/17 14:32:31 37.487N 118.855W  7.1   18 km (11 mi) WSW of Toms Place, CA
 0.7  2013/05/17 14:01:21 37.484N 118.856W  6.4   18 km (11 mi) WSW of Toms Place, CA
 1.0  2013/05/17 12:13:38 37.371N 119.033W 10.4   31 km (19 mi) S   of Mammoth Lakes, CA
 3.0  2013/05/17 11:53:20 37.378N 119.038W 10.8   31 km (19 mi) S   of Mammoth Lakes, CA
 0.2  2013/05/17 03:05:50 37.630N 119.046W  2.8    7 km ( 4 mi) WSW of Mammoth Lakes, CA
 1.1  2013/05/17 03:03:51 37.552N 119.003W  4.4   11 km ( 7 mi) SSW of Mammoth Lakes, CA
 0.2  2013/05/17 02:46:44 37.623N 119.020W  9.8    5 km ( 3 mi) SW  of Mammoth Lakes, CA
 0.4  2013/05/17 02:15:21 37.629N 119.045W  3.3    7 km ( 4 mi) WSW of Mammoth Lakes, CA
 2.0  2013/05/17 02:14:57 37.624N 119.049W  4.5    7 km ( 5 mi) WSW of Mammoth Lakes, CA
 0.2  2013/05/17 01:41:40 37.621N 119.041W  3.8    7 km ( 4 mi) WSW of Mammoth Lakes, 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)