2026-08-23 23:20:35 UPDATED: (M5.0) Rat Islands, Aleutian Islands, Alaska 52.1 176.5 (90be5)

M5.0 Earthquake - Rat Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 23 Aug 2026 23:20:35 Time near the Epicenter (1): 23 Aug 2026 13:20:35 Time in your area (1): 23 Aug 2026 15:20:35
Location	52.078N 176.480E
Depth	7 km
Distances	239.6 km (148.6 mi) ESE of Attu Station, Alaska 1121.0 km (695.0 mi) ESE of Klyuchi, Russia 1212.2 km (751.6 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1227.8 km (761.2 mi) ESE of Vilyuchinsk, Russia 1228.2 km (761.5 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 9.6 km; Vertical 4.7 km
Parameters	Nph = 64; Dmin = 144.3 km; Rmss = 0.97 seconds; Gp = 109° Version =
Event ID	us 6000tn19

(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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