2025-09-12 17:46:45 (M5.2) Tristan da Cunha region -39.4 -15.6 (90be5)

M5.2 Earthquake - Tristan da Cunha region

Preliminary Report

Magnitude	5.2
Date-Time	Universal Time (UTC): 12 Sep 2025 17:46:46 Time near the Epicenter (1): 12 Sep 2025 16:46:46 Time in your area (1): 12 Sep 2025 09:46:46
Location	39.393S 15.555W
Depth	10 km
Distances	383.7 km (237.9 mi) SW of Edinburgh of the Seven Seas, Saint Helena 3075.9 km (1907.1 mi) W of Saldanha, South Africa 3078.3 km (1908.6 mi) W of Retreat, South Africa 3079.0 km (1909.0 mi) W of Cape Town, South Africa 3080.4 km (1909.8 mi) W of Claremont, South Africa
Location Uncertainty	Horizontal: 9.6 km; Vertical 1.9 km
Parameters	Nph = 102; Dmin = 383.5 km; Rmss = 0.45 seconds; Gp = 55° Version =
Event ID	us 7000qvrf

(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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