2025-07-26 05:03:53 UPDATED: (M5.4) Rat Islands, Aleutian Islands, Alaska 51.7 178.4 (70fa9)

M5.4 Earthquake - Rat Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.4
Date-Time	Universal Time (UTC): 26 Jul 2025 05:03:54 Time near the Epicenter (1): 25 Jul 2025 19:03:54 Time in your area (1): 26 Jul 2025 10:33:54
Location	51.700N 178.404E
Depth	91 km
Distances	342.9 km (212.6 mi) W of Adak, Alaska 1256.2 km (778.8 mi) ESE of Klyuchi, Russia 1350.8 km (837.5 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1366.2 km (847.0 mi) ESE of Vilyuchinsk, Russia 1366.9 km (847.5 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 10.2 km; Vertical 5.1 km
Parameters	Nph = 117; Dmin = 30.7 km; Rmss = 0.58 seconds; Gp = 56° Version =
Event ID	us 6000qv9g

(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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