2026-03-31 11:55:18 (M4.1) Fox Islands, Aleutian Islands, Alaska 52.3 -170.9 (90be5)

M4.1 Earthquake - Fox Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	4.1
Date-Time	Universal Time (UTC): 31 Mar 2026 11:55:18 Time near the Epicenter (1): 31 Mar 2026 01:55:18 Time in your area (1): 31 Mar 2026 03:55:18
Location	52.264N 170.920W
Depth	65 km
Distances	158.4 km (98.2 mi) WSW of Nikolski, Alaska 1538.5 km (953.9 mi) SSE of Anadyr, Russia 1615.2 km (1001.4 mi) SW of Anchorage, Alaska 1636.4 km (1014.5 mi) SW of Eagle River, Alaska 1645.1 km (1020.0 mi) SW of Knik-Fairview, Alaska
Location Uncertainty	Horizontal: 14.1 km; Vertical 3.1 km
Parameters	Nph = 141; Dmin = 89.0 km; Rmss = 1.40 seconds; Gp = 205° Version =
Event ID	ak a2026gihise

(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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