2025-08-31 21:19:41 (M4.4) Andreanof Islands, Aleutian Islands, Alaska 51.3 -173.9 (90be5)

M4.4 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	4.4
Date-Time	Universal Time (UTC): 31 Aug 2025 21:19:42 Time near the Epicenter (1): 31 Aug 2025 11:19:42 Time in your area (1): 31 Aug 2025 13:19:42
Location	51.350N 173.932W
Depth	10 km
Distances	96.0 km (59.5 mi) S of Atka, Alaska 1570.7 km (973.9 mi) SSE of Anadyr, Russia 1738.6 km (1078.0 mi) ESE of Klyuchi, Russia 1832.5 km (1136.1 mi) SW of Anchorage, Alaska 1853.5 km (1149.2 mi) SW of Eagle River, Alaska
Location Uncertainty	Horizontal: 5.9 km; Vertical 1.9 km
Parameters	Nph = 40; Dmin = 96.6 km; Rmss = 0.87 seconds; Gp = 185° Version =
Event ID	us 7000qswc

(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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