2023-05-05 14:57:21 (M4.0) Rat Islands, Aleutian Islands, Alaska 52.0 175.3 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

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

Preliminary Report

Magnitude	4.0
Date-Time	Universal Time (UTC): 5 May 2023 14:57:21 Time near the Epicenter (1): 5 May 2023 04:57:21 Time in your area (1): 5 May 2023 06:57:21
Location	52.034N 175.281E
Depth	39 km
Distances	168.7 km (104.6 mi) ESE of Attu Station, Alaska 1053.7 km (653.3 mi) ESE of Klyuchi, Russia 1132.9 km (702.4 mi) ESE of Petropavlovsk-Kamchatsky, Russia 1148.2 km (711.9 mi) ESE of Vilyuchinsk, Russia 1149.2 km (712.5 mi) ESE of Yelizovo, Russia
Location Uncertainty	Horizontal: 9.7 km; Vertical 19.0 km
Parameters	Nph = 27; Dmin = 111.6 km; Rmss = 0.51 seconds; Gp = 211° Version =
Event ID	us 6000k9tg

(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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