2026-09-29 12:40:35 (M5.4) Tonga -20.7 -174.1 (70fa9)

M5.4 Earthquake - Tonga

Preliminary Report

Magnitude	5.4
Date-Time	Universal Time (UTC): 29 Sep 2026 12:40:35 Time near the Epicenter (1): 30 Sep 2026 01:40:35 Time in your area (1): 29 Sep 2026 18:10:35
Location	20.677S 174.081W
Depth	10 km
Distances	99.7 km (61.8 mi) SSE of Pangai, Tonga 127.1 km (78.8 mi) ENE of Nuku‘alofa, Tonga 793.9 km (492.2 mi) SSW of Pago Pago, American Samoa 796.4 km (493.8 mi) SSW of Apia, Samoa 829.6 km (514.4 mi) ESE of Nasinu, Fiji
Location Uncertainty	Horizontal: 13.7 km; Vertical 1.9 km
Parameters	Nph = 43; Dmin = 832.1 km; Rmss = 1.12 seconds; Gp = 182° Version =
Event ID	us 6000tyc1

(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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