2026-08-19 02:20:00 (M4.5) Tonga -15.3 -174.9 (90be5)

M4.5 Earthquake - Tonga

Preliminary Report

Magnitude	4.5
Date-Time	Universal Time (UTC): 19 Aug 2026 02:20:00 Time near the Epicenter (1): 19 Aug 2026 15:20:00 Time in your area (1): 18 Aug 2026 18:20:00
Location	15.323S 174.866W
Depth	236 km
Distances	134.3 km (83.3 mi) WNW of Hihifo, Tonga 372.4 km (230.9 mi) WSW of Apia, Samoa 462.9 km (287.0 mi) WSW of Pago Pago, American Samoa 630.0 km (390.6 mi) ENE of Labasa, Fiji 644.4 km (399.5 mi) N of Nuku‘alofa, Tonga
Location Uncertainty	Horizontal: 14.9 km; Vertical 8.1 km
Parameters	Nph = 34; Dmin = 366.9 km; Rmss = 0.55 seconds; Gp = 105° Version =
Event ID	us 6000tlt1

(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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