2021-09-24 07:02:31 UPDATED: (M5.5) Andreanof Islands, Aleutian Islands, Alaska 51.2 -179.0 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M5.5 Earthquake - Andreanof Islands, Aleutian Islands, Alaska

Preliminary Report

Magnitude	5.5
Date-Time	24 Sep 2021 07:02:32 UTC 23 Sep 2021 21:02:32 near epicenter 23 Sep 2021 23:02:32 standard time in your timezone
Location	51.241N 179.050W
Depth	37 km
Distances	181.7 km (112.7 mi) WSW of Adak, Alaska 1434.1 km (889.2 mi) ESE of Klyuchi, Russia 1516.0 km (939.9 mi) S of Anadyr, Russia 1534.9 km (951.6 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1550.3 km (961.2 mi) ESE of Vilyuchinsk, Russia
Location Uncertainty	Horizontal: 5.3 km; Vertical 4.8 km
Parameters	Nph = 191; Dmin = 38.5 km; Rmss = 1.06 seconds; Gp = 57° Version =
Event ID	us 7000fe0g ***This event supersedes event AK021c9oo6tx.

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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