2025-12-15 16:29:38 (M3.3) Washington 48.5 -121.8 (90be5)

M3.3 Earthquake - Washington

Preliminary Report

Magnitude	3.3
Date-Time	Universal Time (UTC): 15 Dec 2025 16:29:39 Time near the Epicenter (1): 15 Dec 2025 08:29:39 Time in your area (1): 15 Dec 2025 08:29:39
Location	48.538N 121.800W
Depth	0 km
Distances	3.9 km (2.4 mi) W of Concrete, Washington 32.5 km (20.1 mi) E of Sedro-Woolley, Washington 41.6 km (25.8 mi) ENE of Mount Vernon, Washington 44.8 km (27.8 mi) NNE of Arlington, Washington 115.3 km (71.5 mi) E of Victoria, Canada
Location Uncertainty	Horizontal: 0.9 km; Vertical 2.2 km
Parameters	Nph = 32; Dmin = 19.6 km; Rmss = 0.51 seconds; Gp = 79° Version = 3
Event ID	uw 62209782

(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
Pacific Northwest Seismic Network
U.S. Geological Survey
University of Washington
http://www.pnsn.org


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