2025-05-11 22:04:56 (M5.5) Tonga -20.5 -174.2 (70fa9)

M5.5 Earthquake - Tonga

Preliminary Report

Magnitude	5.5
Date-Time	Universal Time (UTC): 11 May 2025 22:04:57 Time near the Epicenter (1): 12 May 2025 11:04:57 Time in your area (1): 12 May 2025 03:34:57
Location	20.472S 174.220W
Depth	10 km
Distances	74.1 km (45.9 mi) S of Pangai, Tonga 125.9 km (78.1 mi) NE of Nuku'alofa, Tonga 779.6 km (483.4 mi) SSW of Apia, Samoa 780.7 km (484.0 mi) SSW of Pago Pago, American Samoa 808.7 km (501.4 mi) ESE of Nasinu, Fiji
Location Uncertainty	Horizontal: 9.0 km; Vertical 1.6 km
Parameters	Nph = 57; Dmin = 770.6 km; Rmss = 0.85 seconds; Gp = 75° Version =
Event ID	us 7000pyqf

(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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