2025-10-31 03:31:57 (M4.2) Tonga -17.6 -175.1 (90be5)

M4.2 Earthquake - Tonga

Preliminary Report

Magnitude	4.2
Date-Time	Universal Time (UTC): 31 Oct 2025 03:31:58 Time near the Epicenter (1): 31 Oct 2025 16:31:58 Time in your area (1): 30 Oct 2025 19:31:58
Location	17.630S 175.054W
Depth	234 km
Distances	160.0 km (99.2 mi) NW of Neiafu, Tonga 388.5 km (240.8 mi) N of Nuku'alofa, Tonga 548.2 km (339.9 mi) SW of Apia, Samoa 595.4 km (369.2 mi) SW of Pago Pago, American Samoa 608.9 km (377.5 mi) ESE of Labasa, Fiji
Location Uncertainty	Horizontal: 15.5 km; Vertical 16.7 km
Parameters	Nph = 18; Dmin = 540.3 km; Rmss = 0.30 seconds; Gp = 132° Version =
Event ID	us 6000rkia

(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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