2026-08-22 18:55:55 (M3.5) Rat Islands, Aleutian Islands, Alaska 52.0 176.3 (90be5)

M3.5 Earthquake - Rat Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	3.5
Date-Time	Universal Time (UTC): 22 Aug 2026 18:55:56 Time near the Epicenter (1): 22 Aug 2026 08:55:56 Time in your area (1): 22 Aug 2026 10:55:56
Location	52.015N 176.339E
Depth	9 km
Distances	233.5 km (144.8 mi) ESE of Attu Station, Alaska 1116.4 km (692.1 mi) ESE of Klyuchi, Russia 1204.3 km (746.6 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1219.7 km (756.2 mi) ESE of Vilyuchinsk, Russia 1220.4 km (756.7 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 25.7 km; Vertical 10.8 km
Parameters	Nph = 31; Dmin = 144.6 km; Rmss = 0.70 seconds; Gp = 191° Version =
Event ID	ak a2026qpuziw

(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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