2026-08-02 18:31:32 (M4.3) Rat Islands, Aleutian Islands, Alaska 52.0 176.3 (90be5)

M4.3 Earthquake - Rat Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	4.3
Date-Time	Universal Time (UTC): 2 Aug 2026 18:31:32 Time near the Epicenter (1): 2 Aug 2026 08:31:32 Time in your area (1): 2 Aug 2026 10:31:32
Location	51.995N 176.266E
Depth	10 km
Distances	229.9 km (142.5 mi) ESE of Attu Station, Alaska 1113.2 km (690.2 mi) ESE of Klyuchi, Russia 1199.8 km (743.9 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1215.2 km (753.5 mi) ESE of Vilyuchinsk, Russia 1216.0 km (753.9 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 5.1 km; Vertical 2.0 km
Parameters	Nph = 43; Dmin = 158.7 km; Rmss = 0.74 seconds; Gp = 186° Version =
Event ID	us 6000thn1

(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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