2026-10-12 04:38:09 (M5.5) Tonga -18.5 -175.1 (70fa9)

M5.5 Earthquake - Tonga

Preliminary Report

Magnitude	5.5
Date-Time	Universal Time (UTC): 12 Oct 2026 04:38:10 Time near the Epicenter (1): 12 Oct 2026 17:38:10 Time in your area (1): 12 Oct 2026 10:08:10
Location	18.528S 175.144W
Depth	164 km
Distances	123.3 km (76.4 mi) W of Neiafu, Tonga 288.9 km (179.1 mi) N of Nuku‘alofa, Tonga 627.6 km (389.1 mi) ESE of Labasa, Fiji 632.7 km (392.2 mi) SW of Apia, Samoa 668.0 km (414.1 mi) SW of Pago Pago, American Samoa
Location Uncertainty	Horizontal: 10.9 km; Vertical 6.6 km
Parameters	Nph = 64; Dmin = 552.9 km; Rmss = 0.88 seconds; Gp = 43° Version =
Event ID	us 6000u1pl

(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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