2026-09-20 00:33:21 (M4.9) Tonga -16.0 -174.6 (90be5)

M4.9 Earthquake - Tonga

Preliminary Report

Magnitude	4.9
Date-Time	Universal Time (UTC): 20 Sep 2026 00:33:21 Time near the Epicenter (1): 20 Sep 2026 13:33:21 Time in your area (1): 19 Sep 2026 16:33:21
Location	15.961S 174.597W
Depth	10 km
Distances	85.7 km (53.2 mi) W of Hihifo, Tonga 384.9 km (238.6 mi) SW of Apia, Samoa 458.1 km (284.0 mi) WSW of Pago Pago, American Samoa 576.5 km (357.4 mi) N of Nuku‘alofa, Tonga 647.8 km (401.6 mi) E of Labasa, Fiji
Location Uncertainty	Horizontal: 7.3 km; Vertical 1.6 km
Parameters	Nph = 21; Dmin = 378.1 km; Rmss = 1.27 seconds; Gp = 68° Version =
Event ID	us 7000timw

(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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