2025-03-31 06:58:14 (M4.2) Rat Islands, Aleutian Islands, Alaska 51.9 178.4 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.2 Earthquake - Rat Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	4.2
Date-Time	Universal Time (UTC): 31 Mar 2025 06:58:14 Time near the Epicenter (1): 30 Mar 2025 20:58:14 Time in your area (1): 30 Mar 2025 22:58:14
Location	51.862N 178.442E
Depth	138 km
Distances	339.1 km (210.2 mi) W of Adak, Alaska 1249.3 km (774.5 mi) ESE of Klyuchi, Russia 1349.0 km (836.4 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1364.6 km (846.1 mi) ESE of Vilyuchinsk, Russia 1365.0 km (846.3 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 8.8 km; Vertical 4.9 km
Parameters	Nph = 211; Dmin = 13.7 km; Rmss = 0.53 seconds; Gp = 84° Version =
Event ID	us 7000pnzd

(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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