2025-12-15 00:04:20 UPDATED: (M3.4) Northern California 38.4 -122.6 (90be5)

M3.4 Earthquake - Northern California

Preliminary Report

Magnitude	3.4
Date-Time	Universal Time (UTC): 15 Dec 2025 00:04:21 Time near the Epicenter (1): 14 Dec 2025 16:04:21 Time in your area (1): 14 Dec 2025 16:04:21
Location	38.378N 122.606W
Depth	3 km
Distances	6.5 km (4.0 mi) SW of Kenwood, California 9.4 km (5.8 mi) ENE of Rohnert Park, California 11.8 km (7.3 mi) SE of Santa Rosa, California 16.1 km (10.0 mi) NW of Sonoma, California 99.5 km (61.7 mi) WSW of Sacramento, California
Location Uncertainty	Horizontal: 0.1 km; Vertical 0.5 km
Parameters	Nph = 78; Dmin = 0.0 km; Rmss = 0.14 seconds; Gp = 24° Version = 2
Event ID	nc 75280001 ***This event supersedes event EW1765757060.

(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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