2023-08-17 21:08:00 (M4.0) near the coast of Northern California 40.3 -124.2 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.0 Earthquake - near the coast of Northern California

Preliminary Report

Magnitude	4.0
Date-Time	Universal Time (UTC): 17 Aug 2023 21:08:01 Time near the Epicenter (1): 17 Aug 2023 14:08:01 Time in your area (1): 17 Aug 2023 13:08:01
Location	40.331N 124.238W
Depth	31 km
Distances	20.4 km (12.7 mi) SW of Scotia, California 30.4 km (18.9 mi) SSW of Fortuna, California 52.7 km (32.7 mi) S of Eureka, California 58.7 km (36.4 mi) SSW of Bayside, California 305.8 km (189.6 mi) NW of Sacramento, California
Location Uncertainty	Horizontal: 0.7 km; Vertical 1.1 km
Parameters	Nph = 25; Dmin = 0.0 km; Rmss = 0.09 seconds; Gp = 91° Version = 2
Event ID	nc 73925281

(1) Nominal Standard Time; local and daylight savings time zone may differ.
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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