2025-05-06 05:30:55 (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): 6 May 2025 05:30:55 Time near the Epicenter (1): 5 May 2025 19:30:55 Time in your area (1): 5 May 2025 21:30:55
Location	51.920N 178.433E
Depth	120 km
Distances	339.5 km (210.5 mi) W of Adak, Alaska 1245.5 km (772.2 mi) ESE of Klyuchi, Russia 1346.9 km (835.1 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1362.6 km (844.8 mi) ESE of Vilyuchinsk, Russia 1362.8 km (844.9 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 14.6 km; Vertical 8.0 km
Parameters	Nph = 109; Dmin = 10.3 km; Rmss = 0.83 seconds; Gp = 171° Version =
Event ID	us 7000pxfn

(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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