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11 October, 2025

2025-10-11 08:06:43 (M5.4) South Sandwich Islands region -56.2 -26.5 (70fa9)

M5.4 Earthquake - South Sandwich Islands region

Preliminary Report
Magnitude 5.4
Date-Time
  • Universal Time (UTC): 11 Oct 2025 08:06:44
  • Time near the Epicenter (1): 11 Oct 2025 06:06:44
  • Time in your area (1): 11 Oct 2025 13:36:44
Location 56.183S 26.492W
Depth 44 km
Distances
  • 2375.6 km (1472.9 mi) SSW of Edinburgh of the Seven Seas, Saint Helena
  • 2607.0 km (1616.3 mi) ENE of Ushuaia, Argentina
  • 2612.3 km (1619.6 mi) ENE of Río Grande, Argentina
  • 2806.6 km (1740.1 mi) E of Río Gallegos, Argentina
  • 2820.6 km (1748.8 mi) E of Puerto Deseado, Argentina
Location Uncertainty Horizontal: 11.0 km; Vertical 7.0 km
Parameters Nph = 80; Dmin = 670.2 km; Rmss = 1.26 seconds; Gp = 81°
Version =
Event ID us 6000rgil

(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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