2025-07-26 23:09:39 UPDATED: (M5.3) Rat Islands, Aleutian Islands, Alaska 52.1 178.3 (70fa9)

M5.3 Earthquake - Rat Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.3
Date-Time	Universal Time (UTC): 26 Jul 2025 23:09:39 Time near the Epicenter (1): 26 Jul 2025 13:09:39 Time in your area (1): 27 Jul 2025 04:39:39
Location	52.057N 178.267E
Depth	134 km
Distances	351.0 km (217.6 mi) W of Adak, Alaska 1228.0 km (761.4 mi) ESE of Klyuchi, Russia 1332.4 km (826.1 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1348.2 km (835.9 mi) ESE of Yelizovo, Russia 1348.2 km (835.9 mi) ESE of Vilyuchinsk, Russia
Location Uncertainty	Horizontal: 3.1 km; Vertical 5.4 km
Parameters	Nph = 152; Dmin = 23.7 km; Rmss = 0.91 seconds; Gp = 34° Version =
Event ID	us 6000qvdz

(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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