2025-09-09 19:40:58 UPDATED: (M4.0) near the coast of Northern California 40.3 -124.9 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.0 Earthquake - near the coast of Northern California

Preliminary Report

Magnitude	4.0
Date-Time	Universal Time (UTC): 9 Sep 2025 19:40:59 Time near the Epicenter (1): 9 Sep 2025 12:40:59 Time in your area (1): 9 Sep 2025 11:40:59
Location	40.347N 124.920W
Depth	1 km
Distances	61.2 km (37.9 mi) WSW of Ferndale, California 70.4 km (43.7 mi) WSW of Fortuna, California 81.6 km (50.6 mi) SW of Eureka, California 91.0 km (56.4 mi) SW of Bayside, California 353.9 km (219.4 mi) WNW of Sacramento, California
Location Uncertainty	Horizontal: 2.0 km; Vertical 3.6 km
Parameters	Nph = 68; Dmin = 49.5 km; Rmss = 0.32 seconds; Gp = 242° Version = 2
Event ID	nc 75235672 ***This event supersedes event EW1757446870.

(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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