2025-05-17 20:56:19 (M4.7) Tonga -17.6 -174.4 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.7 Earthquake - Tonga

Preliminary Report

Magnitude	4.7
Date-Time	Universal Time (UTC): 17 May 2025 20:56:19 Time near the Epicenter (1): 18 May 2025 09:56:19 Time in your area (1): 17 May 2025 12:56:19
Location	17.587S 174.394W
Depth	93 km
Distances	125.6 km (77.9 mi) NNW of Neiafu, Tonga 402.0 km (249.3 mi) NNE of Nuku‘alofa, Tonga 501.8 km (311.1 mi) SW of Apia, Samoa 538.7 km (334.0 mi) SW of Pago Pago, American Samoa 676.7 km (419.5 mi) E of Labasa, Fiji
Location Uncertainty	Horizontal: 11.1 km; Vertical 7.1 km
Parameters	Nph = 49; Dmin = 493.5 km; Rmss = 1.08 seconds; Gp = 115° Version =
Event ID	us 7000pzw8

(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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