2026-03-04 19:04:46 (M4.9) Rat Islands, Aleutian Islands, Alaska 52.1 176.4 (90be5)

M4.9 Earthquake - Rat Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	4.9
Date-Time	Universal Time (UTC): 4 Mar 2026 19:04:47 Time near the Epicenter (1): 4 Mar 2026 09:04:47 Time in your area (1): 4 Mar 2026 11:04:47
Location	52.053N 176.369E
Depth	8 km
Distances	233.7 km (144.9 mi) ESE of Attu Station, Alaska 1116.0 km (691.9 mi) ESE of Klyuchi, Russia 1205.4 km (747.3 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1220.9 km (757.0 mi) ESE of Vilyuchinsk, Russia 1221.5 km (757.3 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 10.8 km; Vertical 5.1 km
Parameters	Nph = 74; Dmin = 151.8 km; Rmss = 1.09 seconds; Gp = 167° Version =
Event ID	us 7000s226

(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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