2025-04-18 14:26:55 (M4.9) Tonga -16.0 -174.8 (90be5)

M4.9 Earthquake - Tonga

Preliminary Report

Magnitude	4.9
Date-Time	Universal Time (UTC): 18 Apr 2025 14:26:55 Time near the Epicenter (1): 19 Apr 2025 03:26:55 Time in your area (1): 18 Apr 2025 06:26:55
Location	16.018S 174.758W
Depth	292 km
Distances	103.2 km (64.0 mi) W of Hihifo, Tonga 402.5 km (249.6 mi) SW of Apia, Samoa 476.5 km (295.4 mi) WSW of Pago Pago, American Samoa 568.5 km (352.5 mi) N of Nuku'alofa, Tonga 630.0 km (390.6 mi) E of Labasa, Fiji
Location Uncertainty	Horizontal: 7.8 km; Vertical 9.6 km
Parameters	Nph = 40; Dmin = 395.8 km; Rmss = 1.15 seconds; Gp = 69° Version =
Event ID	us 6000q70z

(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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