2026-01-28 23:47:18 (M4.0) Andreanof Islands, Aleutian Islands, Alaska 50.9 -179.3 (90be5)

M4.0 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	4.0
Date-Time	Universal Time (UTC): 28 Jan 2026 23:47:18 Time near the Epicenter (1): 28 Jan 2026 13:47:18 Time in your area (1): 28 Jan 2026 15:47:18
Location	50.938N 179.320W
Depth	3 km
Distances	213.9 km (132.6 mi) WSW of Adak, Alaska 1435.7 km (890.1 mi) ESE of Klyuchi, Russia 1526.6 km (946.5 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1541.6 km (955.8 mi) ESE of Vilyuchinsk, Russia 1543.1 km (956.7 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 8.4 km; Vertical 2.1 km
Parameters	Nph = 44; Dmin = 77.8 km; Rmss = 0.90 seconds; Gp = 229° Version =
Event ID	ak 2026bzjxrs

(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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