2026-04-18 13:15:09 UPDATED: (M5.0) Andreanof Islands, Aleutian Islands, Alaska 51.4 -179.7 (70fa9)

M5.0 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 18 Apr 2026 13:15:09 Time near the Epicenter (1): 18 Apr 2026 03:15:09 Time in your area (1): 18 Apr 2026 18:45:09
Location	51.420N 179.670W
Depth	35 km
Distances	216.1 km (134.0 mi) WSW of Adak, Alaska 1386.8 km (859.8 mi) ESE of Klyuchi, Russia 1487.8 km (922.5 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1491.8 km (924.9 mi) S of Anadyr, Russia 1503.3 km (932.1 mi) ESE of Vilyuchinsk, Russia
Location Uncertainty	Horizontal: 2.1 km; Vertical 1.9 km
Parameters	Nph = 57; Dmin = 61.4 km; Rmss = 0.96 seconds; Gp = 175° Version =
Event ID	us 6000sr43 ***This event supersedes event AKa2026hplbjb.

(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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