2025-08-04 04:24:27 (M4.0) Unimak Island region, Alaska 53.8 -164.5 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.0 Earthquake - Unimak Island region, Alaska

Preliminary Report

Magnitude	4.0
Date-Time	Universal Time (UTC): 4 Aug 2025 04:24:27 Time near the Epicenter (1): 3 Aug 2025 20:24:27 Time in your area (1): 3 Aug 2025 20:24:27
Location	53.767N 164.466W
Depth	26 km
Distances	95.2 km (59.0 mi) ESE of Akutan, Alaska 1199.8 km (743.9 mi) SW of Anchorage, Alaska 1221.0 km (757.0 mi) SW of Eagle River, Alaska 1232.5 km (764.2 mi) SW of Knik-Fairview, Alaska 1585.3 km (982.9 mi) SSE of Anadyr, Russia
Location Uncertainty	Horizontal: 0.0 km; Vertical 2.9 km
Parameters	Nph = 45; Dmin = 0.0 km; Rmss = 0.56 seconds; Gp = 0° Version = 1
Event ID	ak 0259xalwgn

(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
Alaska Earthquake Center
Geophysical Institute, University of Alaska Fairbanks

https://earthquake.alaska.edu

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