2021-10-13 20:56:28 UPDATED: (M3.9) Rat Islands, Aleutian Islands, Alaska 51.8 176.6 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M3.9 Earthquake - Rat Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	3.9
Date-Time	13 Oct 2021 20:56:28 UTC 13 Oct 2021 10:56:28 near epicenter 13 Oct 2021 12:56:28 standard time in your timezone
Location	51.780N 176.623E
Depth	35 km
Distances	262.7 km (162.8 mi) ESE of Attu Station, Alaska 1146.8 km (711.0 mi) ESE of Klyuchi, Russia 1229.2 km (762.1 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1244.4 km (771.6 mi) ESE of Vilyuchinsk, Russia 1245.6 km (772.3 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 6.5 km; Vertical 2.0 km
Parameters	Nph = 35; Dmin = 131.6 km; Rmss = 0.85 seconds; Gp = 200° Version =
Event ID	us 6000fucm ***This event supersedes event AK021d5by0t3.

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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