2026-07-03 23:03:41 UPDATED: (M4.1) Rat Islands, Aleutian Islands, Alaska 52.0 176.3 (90be5)

M4.1 Earthquake - Rat Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	4.1
Date-Time	Universal Time (UTC): 3 Jul 2026 23:03:41 Time near the Epicenter (1): 3 Jul 2026 13:03:41 Time in your area (1): 3 Jul 2026 15:03:41
Location	52.017N 176.306E
Depth	16 km
Distances	231.4 km (143.5 mi) ESE of Attu Station, Alaska 1114.4 km (690.9 mi) ESE of Klyuchi, Russia 1202.0 km (745.3 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1217.5 km (754.8 mi) ESE of Vilyuchinsk, Russia 1218.2 km (755.3 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 9.4 km; Vertical 10.3 km
Parameters	Nph = 50; Dmin = 151.8 km; Rmss = 0.70 seconds; Gp = 190° Version =
Event ID	us 6000ta1r ***This event supersedes event AKa2026nbudue.

(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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