2021-12-09 19:18:56 UPDATED: (M4.3) Rat Islands, Aleutian Islands, Alaska 51.8 178.3 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M4.3 Earthquake - Rat Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	4.3
Date-Time	9 Dec 2021 19:18:56 UTC 9 Dec 2021 09:18:56 near epicenter 9 Dec 2021 11:18:56 standard time in your timezone
Location	51.825N 178.264E
Depth	10 km
Distances	351.6 km (218.0 mi) W of Adak, Alaska 1240.7 km (769.3 mi) ESE of Klyuchi, Russia 1338.0 km (829.6 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1353.6 km (839.2 mi) ESE of Vilyuchinsk, Russia 1354.1 km (839.5 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 7.6 km; Vertical 2.0 km
Parameters	Nph = 61; Dmin = 21.9 km; Rmss = 0.89 seconds; Gp = 167° Version =
Event ID	us 6000gayq ***This event supersedes event AK021frkr989.

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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