2021-12-20 21:19:57 UPDATED: (M4.5) near the coast of Northern California 40.5 -124.3 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M4.5 Earthquake - near the coast of Northern California

Preliminary Report

Magnitude	4.5
Date-Time	20 Dec 2021 21:19:58 UTC 20 Dec 2021 13:19:58 near epicenter 20 Dec 2021 13:19:58 standard time in your timezone
Location	40.462N 124.284W
Depth	23 km
Distances	12.9 km (8.0 mi) S of Ferndale, California 18.6 km (11.5 mi) SW of Fortuna, California 39.2 km (24.3 mi) SSW of Eureka, California 46.2 km (28.7 mi) SSW of Bayside, California 317.9 km (197.1 mi) NW of Sacramento, California
Location Uncertainty	Horizontal: 0.9 km; Vertical 0.7 km
Parameters	Nph = 19; Dmin = 0.0 km; Rmss = 0.11 seconds; Gp = 109° Version = 5
Event ID	nc 73666446 ***This event has been revised.

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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