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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 = Fri Sep 25 21:00:01 PDT 2020
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
 0.7 2020/09/25 03:04:07 39.906N 120.820W  6.4    7 km ( 5 mi) ESE of East Quincy, CA
 0.6 2020/09/24 18:00:42 39.911N 120.838W 15.0    6 km ( 4 mi) ESE of East Quincy, CA
 0.2 2020/09/23 07:17:07 39.483N 120.393W  0.0   25 km (16 mi) NW  of Truckee, CA
 1.4 2020/09/23 06:38:35 40.496N 121.622W 12.9   23 km (14 mi) E   of Shingletown, CA
 0.8 2020/09/22 18:22:15 39.411N 120.396W  8.7   21 km (13 mi) WNW of Truckee, CA
 1.1 2020/09/22 04:49:58 39.399N 120.188W 11.2    8 km ( 5 mi) N   of Truckee, CA
 -0.4 2020/09/20 23:53:20 39.770N 120.260W  9.3   18 km (11 mi) ESE of Portola, CA
 0.8 2020/09/20 21:53:44 40.427N 121.373W  3.2   18 km (11 mi) NW  of Chester, CA
 0.2 2020/09/20 21:02:04 39.221N 120.082W  9.0    3 km ( 2 mi) SW  of Tahoe Vista, CA
 0.4 2020/09/20 14:41:00 39.733N 120.710W  0.0   22 km (14 mi) WSW of Portola, CA
 1.1 2020/09/20 13:50:52 40.155N 120.971W  0.0    2 km ( 2 mi) NW  of Greenville, CA
 0.4 2020/09/20 06:56:58 39.846N 120.837W  5.2   11 km ( 7 mi) SSE of East Quincy, CA
 1.0 2020/09/20 04:36:04 39.401N 120.188W 11.2    8 km ( 5 mi) N   of Truckee, CA
 0.7 2020/09/19 22:25:29 39.961N 120.565W 13.9   19 km (12 mi) NNW of Portola, CA
 0.7 2020/09/19 19:36:27 39.984N 120.719W  0.0   16 km (10 mi) ENE of East Quincy, CA
 0.3 2020/09/19 12:58:56 39.848N 120.030W  0.0   19 km (12 mi) NNW of Cold Springs, NV
 0.2 2020/09/19 01:26:52 39.339N 120.040W  2.8   11 km ( 7 mi) N   of Tahoe Vista, 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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