2025-03-21 15:46:32 UPDATED: (M4.6) Andreanof Islands, Aleutian Islands, Alaska 51.2 -176.1 (90be5)

M4.6 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	4.6
Date-Time	Universal Time (UTC): 21 Mar 2025 15:46:33 Time near the Epicenter (1): 21 Mar 2025 05:46:33 Time in your area (1): 21 Mar 2025 07:46:33
Location	51.156N 176.114W
Depth	32 km
Distances	87.7 km (54.4 mi) SSE of Adak, Alaska 1556.8 km (965.2 mi) SSE of Anadyr, Russia 1616.0 km (1001.9 mi) ESE of Klyuchi, Russia 1734.2 km (1075.2 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1750.0 km (1085.0 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 5.1 km; Vertical 6.4 km
Parameters	Nph = 74; Dmin = 81.2 km; Rmss = 0.83 seconds; Gp = 189° Version =
Event ID	us 7000plmb ***This event supersedes event AK0253ok7763.

(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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