2021-08-22 11:46:08 UPDATED: (M4.1) Andreanof Islands, Aleutian Islands, Alaska 51.3 -178.3 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M4.1 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	4.1
Date-Time	22 Aug 2021 11:46:09 UTC 22 Aug 2021 01:46:09 near epicenter 22 Aug 2021 03:46:09 standard time in your timezone
Location	51.267N 178.299W
Depth	35 km
Distances	133.7 km (82.9 mi) WSW of Adak, Alaska 1477.7 km (916.2 mi) ESE of Klyuchi, Russia 1519.4 km (942.0 mi) S of Anadyr, Russia 1582.9 km (981.4 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1599.9 km (992.0 mi) ESE of Vilyuchinsk, Russia
Location Uncertainty	Horizontal: 3.6 km; Vertical 2.0 km
Parameters	Nph = 29; Dmin = 60.9 km; Rmss = 0.25 seconds; Gp = 220° Version =
Event ID	us 6000f9v6 ***This event supersedes event AK021ar6kvh7.

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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