2025-12-17 17:05:57 (M5.7) South Sandwich Islands region -58.7 -25.2 (70fa9)

M5.7 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.7
Date-Time	Universal Time (UTC): 17 Dec 2025 17:05:57 Time near the Epicenter (1): 17 Dec 2025 15:05:57 Time in your area (1): 17 Dec 2025 22:35:57
Location	58.675S 25.247W
Depth	35 km
Distances	2574.1 km (1595.9 mi) E of Tolhuin, Argentina 2579.5 km (1599.3 mi) SSW of Edinburgh of the Seven Seas, Saint Helena 2623.0 km (1626.3 mi) E of Ushuaia, Argentina 2641.8 km (1637.9 mi) E of Río Grande, Argentina 2853.8 km (1769.4 mi) E of Río Gallegos, Argentina
Location Uncertainty	Horizontal: 10.4 km; Vertical 1.9 km
Parameters	Nph = 60; Dmin = 847.1 km; Rmss = 0.48 seconds; Gp = 82° Version =
Event ID	us 6000rvhe

(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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