2026-01-31 18:28:37 (M3.4) Rat Islands, Aleutian Islands, Alaska 51.6 179.6 (90be5)

M3.4 Earthquake - Rat Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	3.4
Date-Time	Universal Time (UTC): 31 Jan 2026 18:28:38 Time near the Epicenter (1): 31 Jan 2026 08:28:38 Time in your area (1): 31 Jan 2026 10:28:38
Location	51.609N 179.605E
Depth	75 km
Distances	261.4 km (162.1 mi) W of Adak, Alaska 1332.8 km (826.3 mi) ESE of Klyuchi, Russia 1433.8 km (888.9 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1449.3 km (898.6 mi) ESE of Vilyuchinsk, Russia 1449.8 km (898.9 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 10.2 km; Vertical 3.9 km
Parameters	Nph = 40; Dmin = 33.4 km; Rmss = 0.40 seconds; Gp = 130° Version =
Event ID	ak 2026cemnta

(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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