2026-03-01 06:38:43 (M4.9) Tonga -16.7 -173.1 (90be5)

M4.9 Earthquake - Tonga

Preliminary Report

Magnitude	4.9
Date-Time	Universal Time (UTC): 1 Mar 2026 06:38:43 Time near the Epicenter (1): 1 Mar 2026 19:38:43 Time in your area (1): 28 Feb 2026 22:38:43
Location	16.736S 173.106W
Depth	35 km
Distances	113.7 km (70.5 mi) SE of Hihifo, Tonga 352.0 km (218.2 mi) SSW of Apia, Samoa 374.8 km (232.4 mi) SW of Pago Pago, American Samoa 534.7 km (331.5 mi) NNE of Nuku'alofa, Tonga 804.2 km (498.6 mi) E of Labasa, Fiji
Location Uncertainty	Horizontal: 10.8 km; Vertical 1.9 km
Parameters	Nph = 59; Dmin = 387.3 km; Rmss = 0.77 seconds; Gp = 72° Version =
Event ID	us 7000s173

(1) Nominal Standard Time; local and daylight savings time zone may differ.
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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