2025-04-04 06:31:48 UPDATED: (M4.0) Northern California 38.8 -122.8 (90be5)

M4.0 Earthquake - Northern California

Preliminary Report

Magnitude	4.0
Date-Time	Universal Time (UTC): 4 Apr 2025 06:31:49 Time near the Epicenter (1): 3 Apr 2025 23:31:49 Time in your area (1): 3 Apr 2025 22:31:49
Location	38.821N 122.839W
Depth	2 km
Distances	10.1 km (6.3 mi) W of Cobb, California 23.5 km (14.6 mi) N of Healdsburg, California 23.9 km (14.8 mi) SW of Clearlake, California 30.5 km (18.9 mi) N of Windsor, California 120.0 km (74.4 mi) WNW of Sacramento, California
Location Uncertainty	Horizontal: 0.1 km; Vertical 0.2 km
Parameters	Nph = 76; Dmin = 0.4 km; Rmss = 0.08 seconds; Gp = 24° Version = 3
Event ID	nc 75159797 ***This event has been revised.

(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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