2025-10-05 01:51:46 (M4.3) Andreanof Islands, Aleutian Islands, Alaska 51.6 -179.5 (90be5)

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

Preliminary Report

Magnitude	4.3
Date-Time	Universal Time (UTC): 5 Oct 2025 01:51:46 Time near the Epicenter (1): 4 Oct 2025 15:51:46 Time in your area (1): 4 Oct 2025 17:51:46
Location	51.578N 179.494W
Depth	76 km
Distances	200.3 km (124.2 mi) W of Adak, Alaska 1388.5 km (860.9 mi) ESE of Klyuchi, Russia 1475.5 km (914.8 mi) S of Anadyr, Russia 1495.0 km (926.9 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1510.7 km (936.6 mi) ESE of Vilyuchinsk, Russia
Location Uncertainty	Horizontal: 8.1 km; Vertical 7.7 km
Parameters	Nph = 53; Dmin = 47.2 km; Rmss = 0.85 seconds; Gp = 162° Version =
Event ID	us 6000revp

(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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