2020-12-21 03:42:57 (M4.9) Tonga region -17.7 -172.7 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M4.9 Earthquake - Tonga region

Preliminary Report

Magnitude	4.9
Date-Time	21 Dec 2020 03:42:57 UTC 20 Dec 2020 15:42:57 near epicenter 20 Dec 2020 19:42:57 standard time in your timezone
Location	17.705S 172.749W
Depth	10 km
Distances	167.4 km (103.8 mi) NE of Neiafu, Tonga 431.4 km (267.5 mi) SSW of T?funa, American Samoa 437.9 km (271.5 mi) SSW of Pago Pago, American Samoa 441.1 km (273.5 mi) SSW of Apia, Samoa 459.2 km (284.7 mi) NNE of Nuku�alofa, Tonga
Location Uncertainty	Horizontal: 8.9 km; Vertical 1.8 km
Parameters	Nph = 22; Dmin = 432.2 km; Rmss = 0.97 seconds; Gp = 97° Version =
Event ID	us 7000cstt

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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