2025-05-18 07:54:33 (M4.9) Tonga -17.6 -174.5 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.9 Earthquake - Tonga

Preliminary Report

Magnitude	4.9
Date-Time	Universal Time (UTC): 18 May 2025 07:54:33 Time near the Epicenter (1): 18 May 2025 20:54:33 Time in your area (1): 17 May 2025 23:54:33
Location	17.584S 174.506W
Depth	76 km
Distances	130.5 km (80.9 mi) NNW of Neiafu, Tonga 400.1 km (248.0 mi) N of Nuku‘alofa, Tonga 508.3 km (315.2 mi) SW of Apia, Samoa 547.3 km (339.3 mi) SW of Pago Pago, American Samoa 664.9 km (412.3 mi) E of Labasa, Fiji
Location Uncertainty	Horizontal: 10.3 km; Vertical 5.1 km
Parameters	Nph = 62; Dmin = 500.1 km; Rmss = 0.93 seconds; Gp = 58° Version =
Event ID	us 7000pzzj

(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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