2026-06-18 05:43:21 (M3.6) Rat Islands, Aleutian Islands, Alaska 51.8 176.2 (90be5)

M3.6 Earthquake - Rat Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	3.6
Date-Time	Universal Time (UTC): 18 Jun 2026 05:43:21 Time near the Epicenter (1): 17 Jun 2026 19:43:21 Time in your area (1): 17 Jun 2026 21:43:21
Location	51.777N 176.161E
Depth	20 km
Distances	235.2 km (145.8 mi) ESE of Attu Station, Alaska 1120.1 km (694.5 mi) ESE of Klyuchi, Russia 1198.4 km (743.0 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1213.5 km (752.4 mi) ESE of Vilyuchinsk, Russia 1214.8 km (753.2 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 17.9 km; Vertical 0.0 km
Parameters	Nph = 36; Dmin = 166.8 km; Rmss = 1.00 seconds; Gp = 208° Version =
Event ID	ak a2026lytdes

(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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