2026-09-02 04:06:39 (M4.0) Andreanof Islands, Aleutian Islands, Alaska 51.3 -176.3 (90be5)

M4.0 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	4.0
Date-Time	Universal Time (UTC): 2 Sep 2026 04:06:40 Time near the Epicenter (1): 1 Sep 2026 18:06:40 Time in your area (1): 1 Sep 2026 20:06:40
Location	51.304N 176.285W
Depth	13 km
Distances	67.9 km (42.1 mi) SSE of Adak, Alaska 1538.3 km (953.8 mi) S of Anadyr, Russia 1597.5 km (990.4 mi) ESE of Klyuchi, Russia 1718.1 km (1065.2 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1733.7 km (1074.9 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 5.3 km; Vertical 2.2 km
Parameters	Nph = 69; Dmin = 66.7 km; Rmss = 0.80 seconds; Gp = 206° Version =
Event ID	ak a2026rizonf

(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
Alaska Earthquake Center
Geophysical Institute, University of Alaska Fairbanks

https://earthquake.alaska.edu

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