2025-10-21 18:11:08 (M5.2) South Sandwich Islands region -59.0 -25.7 (70fa9)

M5.2 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.2
Date-Time	Universal Time (UTC): 21 Oct 2025 18:11:08 Time near the Epicenter (1): 21 Oct 2025 16:11:08 Time in your area (1): 21 Oct 2025 23:41:08
Location	58.977S 25.701W
Depth	79 km
Distances	2543.7 km (1577.1 mi) E of Tolhuin, Argentina 2591.9 km (1607.0 mi) E of Ushuaia, Argentina 2612.1 km (1619.5 mi) E of Río Grande, Argentina 2825.9 km (1752.1 mi) E of Río Gallegos, Argentina 2831.0 km (1755.2 mi) E of Punta Arenas, Chile
Location Uncertainty	Horizontal: 8.6 km; Vertical 7.5 km
Parameters	Nph = 51; Dmin = 842.8 km; Rmss = 0.65 seconds; Gp = 86° Version =
Event ID	us 6000rii9

(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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