2021-07-30 22:39:16 (M5.4) Tonga -16.7 -173.7 (70fa9)

M5.4 Earthquake - Tonga

Preliminary Report

Magnitude	5.4
Date-Time	30 Jul 2021 22:39:16 UTC 31 Jul 2021 11:39:16 near epicenter 31 Jul 2021 04:09:16 standard time in your timezone
Location	16.737S 173.670W
Depth	10 km
Distances	87.7 km (54.4 mi) S of Hihifo, Tonga 380.8 km (236.1 mi) SSW of Apia, Samoa 413.2 km (256.2 mi) SW of T?funa, American Samoa 418.8 km (259.7 mi) SW of Pago Pago, American Samoa 513.3 km (318.2 mi) NNE of Nuku�alofa, Tonga
Location Uncertainty	Horizontal: 10.7 km; Vertical 1.8 km
Parameters	Nph = 69; Dmin = 372.5 km; Rmss = 0.82 seconds; Gp = 50° Version =
Event ID	us 6000f0u9

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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