2021-10-13 03:31:22 (M4.3) Tonga -16.9 -174.2 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M4.3 Earthquake - Tonga

Preliminary Report

Magnitude	4.3
Date-Time	13 Oct 2021 03:31:23 UTC 13 Oct 2021 16:31:23 near epicenter 12 Oct 2021 19:31:23 standard time in your timezone
Location	16.872S 174.247W
Depth	169 km
Distances	112.4 km (69.7 mi) SSW of Hihifo, Tonga 428.9 km (265.9 mi) SW of Apia, Samoa 471.0 km (292.0 mi) SW of T?funa, American Samoa 476.4 km (295.3 mi) SW of Pago Pago, American Samoa 482.9 km (299.4 mi) NNE of Nuku�alofa, Tonga
Location Uncertainty	Horizontal: 11.7 km; Vertical 7.4 km
Parameters	Nph = 25; Dmin = 502.6 km; Rmss = 0.91 seconds; Gp = 55° Version =
Event ID	us 6000fu4q

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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