2026-05-21 15:33:14 (M3.6) Andreanof Islands, Aleutian Islands, Alaska 51.2 -178.6 (90be5)

M3.6 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	3.6
Date-Time	Universal Time (UTC): 21 May 2026 15:33:15 Time near the Epicenter (1): 21 May 2026 05:33:15 Time in your area (1): 21 May 2026 07:33:15
Location	51.153N 178.556W
Depth	6 km
Distances	155.7 km (96.5 mi) WSW of Adak, Alaska 1468.8 km (910.6 mi) ESE of Klyuchi, Russia 1529.7 km (948.4 mi) S of Anadyr, Russia 1570.8 km (973.9 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1586.2 km (983.4 mi) ESE of Vilyuchinsk, Russia
Location Uncertainty	Horizontal: 8.2 km; Vertical 4.0 km
Parameters	Nph = 35; Dmin = 44.5 km; Rmss = 0.80 seconds; Gp = 213° Version =
Event ID	ak a2026jzuetz

(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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