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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
 1.9 2019/09/21 21:31:36 39.755N 123.601W -0.7   13 km ( 8 mi) NW  of Laytonville, CA
 2.8 2019/09/19 15:52:14 39.134N 123.584W  2.3   23 km (15 mi) NW  of Boonville, CA
 2.0 2019/09/19 15:50:55 39.138N 123.593W  0.3   24 km (15 mi) NW  of Boonville, CA
 1.9 2019/09/19 15:14:51 39.139N 123.596W  1.2   24 km (15 mi) NW  of Boonville, CA
 2.6 2019/09/19 02:39:56 40.571N 124.293W 15.0    3 km ( 2 mi) WSW of Ferndale, CA
 2.8 2019/09/18 10:23:56 40.363N 124.043W 24.4   16 km (10 mi) SSE of Rio Dell, CA
 1.0 2019/09/18 04:52:17 39.043N 123.075W  7.5   13 km ( 8 mi) SE  of Talmage, CA
 1.2 2019/09/18 04:38:12 39.035N 123.336W  4.0    4 km ( 2 mi) NE  of Boonville, CA
 1.0 2019/09/17 18:13:28 39.145N 123.587W -0.4   24 km (15 mi) NW  of Boonville, CA
 1.8 2019/09/17 15:55:26 39.438N 123.106W  0.6   21 km (13 mi) NNE of Redwood Valley, CA
 2.9 2019/09/16 13:41:40 40.686N 124.086W 20.4    8 km ( 5 mi) SE  of Pine Hills, CA
 1.6 2019/09/16 01:53:19 39.675N 123.501W  1.7    2 km ( 1 mi) SW  of Laytonville, CA
 0.0 2019/09/15 13:52:57 40.268N 124.284W  9.0   30 km (19 mi) SSW of Rio Dell, CA
 2.0 2019/09/15 10:03:14 39.732N 123.785W -0.4   26 km (16 mi) W   of Laytonville, 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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