2021-10-19 00:16:23 (M4.3) Tonga -16.0 -174.8 (1cbfb)

[ens@xxxxxxxxxxxx (USGS ENS)]

M4.3 Earthquake - Tonga

Preliminary Report

Magnitude	4.3
Date-Time	19 Oct 2021 00:16:23 UTC 19 Oct 2021 13:16:23 near epicenter 18 Oct 2021 16:16:23 standard time in your timezone
Location	15.998S 174.800W
Depth	264 km
Distances	107.5 km (66.7 mi) W of Hihifo, Tonga 404.8 km (251.0 mi) SW of Apia, Samoa 475.4 km (294.8 mi) WSW of T?funa, American Samoa 479.7 km (297.4 mi) WSW of Pago Pago, American Samoa 570.6 km (353.8 mi) N of Nuku�alofa, Tonga
Location Uncertainty	Horizontal: 10.9 km; Vertical 9.6 km
Parameters	Nph = 17; Dmin = 398.1 km; Rmss = 0.37 seconds; Gp = 177° Version =
Event ID	us 6000fvrv

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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