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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 = Mon Oct 19 17:00:04 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

 3.4 2020/10/18 00:01:57 40.347N 124.209W 28.5   19 km (12 mi) SSW of Rio Dell, CA
 2.4 2020/10/17 00:30:41 40.330N 124.834W 15.4   55 km (34 mi) WSW of Ferndale, CA
 1.6 2020/10/16 10:04:55 40.406N 124.029W 25.8   12 km ( 8 mi) SSE of Rio Dell, CA
 2.2 2020/10/14 20:47:11 40.329N 124.421W  8.4   30 km (19 mi) SSW of Ferndale, CA
 2.6 2020/10/14 17:25:55 40.951N 124.105W 23.4    1 km ( 0 mi) NW  of McKinleyville, CA
 1.5 2020/10/12 23:10:37 40.493N 124.219W 20.6   10 km ( 6 mi) W   of Rio Dell, CA

Special maps:
Long Valley || Los Angeles || San Francisco Index map || big earthquake list || all earthquake list || glossary of terms ||

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)