2023-05-31 19:59:40 (M4.1) off the coast of Northern California 40.4 -125.5 (90be5)

M4.1 Earthquake - off the coast of Northern California

Preliminary Report

Magnitude	4.1
Date-Time	Universal Time (UTC): 31 May 2023 19:59:41 Time near the Epicenter (1): 31 May 2023 12:59:41 Time in your area (1): 31 May 2023 11:59:41
Location	40.361N 125.464W
Depth	2 km
Distances	104.5 km (64.8 mi) WSW of Ferndale, California 113.9 km (70.6 mi) WSW of Fortuna, California 120.5 km (74.7 mi) WSW of Eureka, California 129.7 km (80.4 mi) WSW of Arcata, California 394.5 km (244.6 mi) WNW of Sacramento, California
Location Uncertainty	Horizontal: 3.3 km; Vertical 44.1 km
Parameters	Nph = 96; Dmin = 96.5 km; Rmss = 0.53 seconds; Gp = 247° Version = 2
Event ID	nc 73894796

(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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