2026-03-04 17:54:36 UPDATED: (M6.4) Rat Islands, Aleutian Islands, Alaska 52.3 176.4 (70fa9)

M6.4 Earthquake - Rat Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	6.4
Date-Time	Universal Time (UTC): 4 Mar 2026 17:54:37 Time near the Epicenter (1): 4 Mar 2026 07:54:37 Time in your area (1): 4 Mar 2026 23:24:37
Location	52.266N 176.363E
Depth	10 km
Distances	224.9 km (139.5 mi) ESE of Attu Station, Alaska 1103.4 km (684.1 mi) ESE of Klyuchi, Russia 1200.1 km (744.1 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1215.9 km (753.9 mi) E of Vilyuchinsk, Russia 1215.9 km (753.9 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 5.2 km; Vertical 1.8 km
Parameters	Nph = 122; Dmin = 151.1 km; Rmss = 0.88 seconds; Gp = 50° Version =
Event ID	us 7000s211

(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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