2025-12-28 04:36:20 (M5.1) South Sandwich Islands region -59.8 -26.6 (70fa9)

M5.1 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.1
Date-Time	Universal Time (UTC): 28 Dec 2025 04:36:20 Time near the Epicenter (1): 28 Dec 2025 02:36:20 Time in your area (1): 28 Dec 2025 10:06:20
Location	59.822S 26.550W
Depth	34 km
Distances	2486.4 km (1541.6 mi) E of Tolhuin, Argentina 2532.3 km (1570.1 mi) E of Ushuaia, Argentina 2556.7 km (1585.2 mi) E of Río Grande, Argentina 2773.8 km (1719.8 mi) E of Punta Arenas, Chile 2775.7 km (1720.9 mi) E of Río Gallegos, Argentina
Location Uncertainty	Horizontal: 13.3 km; Vertical 6.1 km
Parameters	Nph = 40; Dmin = 1690.2 km; Rmss = 0.92 seconds; Gp = 79° Version =
Event ID	us 7000rl5k

(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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