2025-11-23 08:21:46 UPDATED: (M5.5) Andreanof Islands, Aleutian Islands, Alaska 51.4 -177.1 (70fa9)

M5.5 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.5
Date-Time	Universal Time (UTC): 23 Nov 2025 08:21:46 Time near the Epicenter (1): 22 Nov 2025 22:21:46 Time in your area (1): 23 Nov 2025 13:51:46
Location	51.411N 177.068W
Depth	54 km
Distances	59.6 km (37.0 mi) SSW of Adak, Alaska 1516.6 km (940.3 mi) S of Anadyr, Russia 1544.0 km (957.3 mi) ESE of Klyuchi, Russia 1662.3 km (1030.7 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1678.0 km (1040.4 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 4.4 km; Vertical 5.6 km
Parameters	Nph = 119; Dmin = 40.7 km; Rmss = 0.92 seconds; Gp = 92° Version =
Event ID	us 6000rpxa ***This event supersedes event AK2025xbbjhg.

(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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