2026-09-11 10:47:12 UPDATED: (M5.3) Andreanof Islands, Aleutian Islands, Alaska 51.2 -178.5 (70fa9)

M5.3 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.3
Date-Time	Universal Time (UTC): 11 Sep 2026 10:47:13 Time near the Epicenter (1): 11 Sep 2026 00:47:13 Time in your area (1): 11 Sep 2026 16:17:13
Location	51.213N 178.543W
Depth	40 km
Distances	151.5 km (93.9 mi) WSW of Adak, Alaska 1466.1 km (909.0 mi) ESE of Klyuchi, Russia 1523.2 km (944.4 mi) S of Anadyr, Russia 1569.7 km (973.2 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1585.2 km (982.8 mi) ESE of Vilyuchinsk, Russia
Location Uncertainty	Horizontal: 5.0 km; Vertical 4.6 km
Parameters	Nph = 115; Dmin = 42.4 km; Rmss = 1.11 seconds; Gp = 127° Version =
Event ID	us 7000tgky

(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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