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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 = Sun Sep 22 1:00:00 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

 1.7 2019/09/21 01:55:10 38.338N 115.824W  0.9  123 km (76 mi) NNW of Alamo, NV
 1.1 2019/09/20 23:22:59 38.282N 115.698W 13.0  112 km (70 mi) NNW of Alamo, NV
 2.1 2019/09/20 01:58:53 38.320N 115.791W  0.8  120 km (74 mi) NNW of Alamo, NV
 1.9 2019/09/18 23:42:09 39.547N 116.569W 10.7   43 km (27 mi) E   of Austin, NV
 2.1 2019/09/17 22:44:21 39.535N 116.581W  3.2   42 km (26 mi) E   of Austin, NV
 1.3 2019/09/17 15:22:50 38.339N 115.832W  0.0  123 km (77 mi) NNW of Alamo, NV
 1.5 2019/09/17 02:19:43 38.312N 116.688W  1.9   55 km (34 mi) ENE of Tonopah, NV
 2.1 2019/09/16 07:19:41 38.320N 115.808W  2.4  120 km (75 mi) NNW of Alamo, NV
 1.6 2019/09/15 20:25:49 38.343N 115.813W  2.4  123 km (76 mi) NNW of Alamo, NV
 1.4 2019/09/15 03:08:11 38.352N 115.817W  0.0  124 km (77 mi) NNW of Alamo, NV

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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)