2023-03-04 04:10:21 (M4.0) Rat Islands, Aleutian Islands, Alaska 51.6 178.7 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

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

Preliminary Report

Magnitude	4.0
Date-Time	Universal Time (UTC): 4 Mar 2023 04:10:21 Time near the Epicenter (1): 3 Mar 2023 18:10:21 Time in your area (1): 3 Mar 2023 20:10:21
Location	51.637N 178.749E
Depth	74 km
Distances	319.9 km (198.3 mi) W of Adak, Alaska 1280.2 km (793.7 mi) ESE of Klyuchi, Russia 1375.6 km (852.9 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1391.0 km (862.4 mi) ESE of Vilyuchinsk, Russia 1391.8 km (862.9 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 4.3 km; Vertical 5.3 km
Parameters	Nph = 39; Dmin = 37.6 km; Rmss = 0.51 seconds; Gp = 166° Version =
Event ID	us 7000jh8s

(1) Nominal Standard Time; local and daylight savings time zone may differ.
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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