2025-09-30 17:50:31 (M5.1) Tonga region -23.4 -175.3 (70fa9)

M5.1 Earthquake - Tonga region

Preliminary Report

Magnitude	5.1
Date-Time	Universal Time (UTC): 30 Sep 2025 17:50:31 Time near the Epicenter (1): 1 Oct 2025 06:50:31 Time in your area (1): 30 Sep 2025 23:20:31
Location	23.389S 175.273W
Depth	10 km
Distances	229.1 km (142.0 mi) S of 'Ohonua, Tonga 249.5 km (154.7 mi) S of Nuku'alofa, Tonga 874.8 km (542.4 mi) SE of Nasinu, Fiji 876.6 km (543.5 mi) SE of Suva, Fiji 949.8 km (588.8 mi) SE of Sigatoka, Fiji
Location Uncertainty	Horizontal: 10.3 km; Vertical 1.8 km
Parameters	Nph = 120; Dmin = 731.5 km; Rmss = 0.73 seconds; Gp = 127° Version =
Event ID	us 6000rdv8

(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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