2021-05-22 05:50:09 (M4.0) Andreanof Islands, Aleutian Islands, Alaska 51.5 -173.0 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M4.0 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	4.0
Date-Time	22 May 2021 05:50:09 UTC 21 May 2021 19:50:09 near epicenter 21 May 2021 21:50:09 standard time in your timezone
Location	51.465N 172.953W
Depth	26 km
Distances	118.3 km (73.4 mi) SE of Atka, Alaska 1577.1 km (977.8 mi) SSE of Anadyr, Russia 1776.1 km (1101.2 mi) SW of Anchorage, Alaska 1792.7 km (1111.5 mi) ESE of Klyuchi, Russia 1797.2 km (1114.3 mi) SW of Eagle River, Alaska
Location Uncertainty	Horizontal: 0.0 km; Vertical 1.5 km
Parameters	Nph = 27; Dmin = 0.0 km; Rmss = 1.00 seconds; Gp = 0° Version = 2
Event ID	ak 0216ixl7ge

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Alaska Earthquake Center
Geophysical Institute, University of Alaska Fairbanks

https://earthquake.alaska.edu

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