2026-03-27 23:35:09 (M5.4) Samoa Islands region -15.9 -172.4 (70fa9)

M5.4 Earthquake - Samoa Islands region

Preliminary Report

Magnitude	5.4
Date-Time	Universal Time (UTC): 27 Mar 2026 23:35:10 Time near the Epicenter (1): 27 Mar 2026 12:35:10 Time in your area (1): 28 Mar 2026 05:05:10
Location	15.921S 172.439W
Depth	10 km
Distances	145.4 km (90.2 mi) E of Hihifo, Tonga 242.0 km (150.1 mi) SSW of Apia, Samoa 260.5 km (161.5 mi) SW of Pago Pago, American Samoa 646.8 km (401.0 mi) NNE of Nuku'alofa, Tonga 878.4 km (544.6 mi) E of Labasa, Fiji
Location Uncertainty	Horizontal: 4.7 km; Vertical 1.8 km
Parameters	Nph = 32; Dmin = 233.4 km; Rmss = 1.21 seconds; Gp = 83° Version =
Event ID	us 7000s8a0

(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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