2025-12-16 17:19:23 (M4.7) Samoa Islands region -15.6 -172.8 (90be5)

M4.7 Earthquake - Samoa Islands region

Preliminary Report

Magnitude	4.7
Date-Time	Universal Time (UTC): 16 Dec 2025 17:19:24 Time near the Epicenter (1): 17 Dec 2025 06:19:24 Time in your area (1): 16 Dec 2025 09:19:24
Location	15.554S 172.809W
Depth	10 km
Distances	114.7 km (71.1 mi) ENE of Hihifo, Tonga 221.0 km (137.0 mi) SSW of Apia, Samoa 267.0 km (165.6 mi) WSW of Pago Pago, American Samoa 667.6 km (413.9 mi) NNE of Nuku'alofa, Tonga 843.3 km (522.8 mi) E of Labasa, Fiji
Location Uncertainty	Horizontal: 10.2 km; Vertical 1.9 km
Parameters	Nph = 49; Dmin = 212.8 km; Rmss = 0.76 seconds; Gp = 72° Version =
Event ID	us 6000rvb4

(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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