2026-07-27 01:05:37 (M4.6) Tonga -16.6 -173.9 (90be5)

M4.6 Earthquake - Tonga

Preliminary Report

Magnitude	4.6
Date-Time	Universal Time (UTC): 27 Jul 2026 01:05:38 Time near the Epicenter (1): 27 Jul 2026 14:05:38 Time in your area (1): 26 Jul 2026 17:05:38
Location	16.563S 173.917W
Depth	80 km
Distances	68.5 km (42.5 mi) S of Hihifo, Tonga 380.2 km (235.7 mi) SW of Apia, Samoa 427.7 km (265.2 mi) SW of Pago Pago, American Samoa 524.1 km (324.9 mi) NNE of Nuku‘alofa, Tonga 717.4 km (444.8 mi) E of Labasa, Fiji
Location Uncertainty	Horizontal: 9.8 km; Vertical 7.2 km
Parameters	Nph = 43; Dmin = 372.3 km; Rmss = 1.08 seconds; Gp = 79° Version =
Event ID	us 7000t3kd

(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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