2021-12-31 16:56:14 (M4.9) Tonga -16.0 -174.8 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M4.9 Earthquake - Tonga

Preliminary Report

Magnitude	4.9
Date-Time	31 Dec 2021 16:56:14 UTC 1 Jan 2022 05:56:14 near epicenter 31 Dec 2021 08:56:14 standard time in your timezone
Location	16.034S 174.813W
Depth	280 km
Distances	109.2 km (67.7 mi) W of Hihifo, Tonga 408.3 km (253.1 mi) SW of Apia, Samoa 478.2 km (296.5 mi) WSW of T?funa, American Samoa 482.6 km (299.2 mi) WSW of Pago Pago, American Samoa 566.6 km (351.3 mi) N of Nuku�alofa, Tonga
Location Uncertainty	Horizontal: 9.6 km; Vertical 6.2 km
Parameters	Nph = 79; Dmin = 401.5 km; Rmss = 1.07 seconds; Gp = 38° Version =
Event ID	us 7000g870

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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