2023-10-18 13:30:39 (M4.9) Tonga region -19.4 -172.8 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.9 Earthquake - Tonga region

Preliminary Report

Magnitude	4.9
Date-Time	Universal Time (UTC): 18 Oct 2023 13:30:40 Time near the Epicenter (1): 19 Oct 2023 02:30:40 Time in your area (1): 18 Oct 2023 05:30:40
Location	19.380S 172.829W
Depth	10 km
Distances	145.9 km (90.5 mi) ESE of Neiafu, Tonga 315.1 km (195.3 mi) NE of Nuku‘alofa, Tonga 608.4 km (377.2 mi) SSW of Pago Pago, American Samoa 624.2 km (387.0 mi) S of Apia, Samoa 889.0 km (551.2 mi) ESE of Labasa, Fiji
Location Uncertainty	Horizontal: 10.9 km; Vertical 1.9 km
Parameters	Nph = 38; Dmin = 306.7 km; Rmss = 1.19 seconds; Gp = 74° Version =
Event ID	us 6000lgcs

(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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