2021-12-08 03:04:43 (M3.9) off the coast of Northern California 40.3 -125.2 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M3.9 Earthquake - off the coast of Northern California

Preliminary Report

Magnitude	3.9
Date-Time	8 Dec 2021 03:04:43 UTC 7 Dec 2021 19:04:43 near epicenter 7 Dec 2021 19:04:43 standard time in your timezone
Location	40.346N 125.184W
Depth	5 km
Distances	82.1 km (50.9 mi) WSW of Ferndale, California 91.4 km (56.7 mi) WSW of Fortuna, California 100.1 km (62.1 mi) WSW of Eureka, California 109.6 km (68.0 mi) WSW of Arcata, California 373.0 km (231.3 mi) WNW of Sacramento, California
Location Uncertainty	Horizontal: 3.4 km; Vertical 29.1 km
Parameters	Nph = 63; Dmin = 73.3 km; Rmss = 0.41 seconds; Gp = 260° Version = 2
Event ID	nc 73661141

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
CISN Northern California Management Center
U.S. Geological Survey
Berkeley Seismological Laboratory
http://www.cisn.org/ncmc.html

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