2026-06-18 15:57:36 UPDATED: (M3.7) Rat Islands, Aleutian Islands, Alaska 51.9 176.2 (90be5)

M3.7 Earthquake - Rat Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	3.7
Date-Time	Universal Time (UTC): 18 Jun 2026 15:57:37 Time near the Epicenter (1): 18 Jun 2026 05:57:37 Time in your area (1): 18 Jun 2026 07:57:37
Location	51.851N 176.167E
Depth	10 km
Distances	231.3 km (143.4 mi) ESE of Attu Station, Alaska 1116.0 km (691.9 mi) ESE of Klyuchi, Russia 1196.8 km (742.0 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1212.0 km (751.5 mi) ESE of Vilyuchinsk, Russia 1213.2 km (752.2 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 7.6 km; Vertical 2.0 km
Parameters	Nph = 19; Dmin = 161.9 km; Rmss = 0.57 seconds; Gp = 203° Version =
Event ID	us 7000suci ***This event supersedes event AKa2026lznqac.

(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
National Earthquake Information Center
U.S. Geological Survey


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