2025-09-20 15:31:09 (M5.2) South Sandwich Islands region -58.1 -24.7 (70fa9)

M5.2 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.2
Date-Time	Universal Time (UTC): 20 Sep 2025 15:31:09 Time near the Epicenter (1): 20 Sep 2025 13:31:09 Time in your area (1): 20 Sep 2025 21:01:09
Location	58.116S 24.654W
Depth	10 km
Distances	2508.3 km (1555.1 mi) SSW of Edinburgh of the Seven Seas, Saint Helena 2668.2 km (1654.3 mi) E of Ushuaia, Argentina 2684.4 km (1664.4 mi) E of Río Grande, Argentina 2893.1 km (1793.7 mi) E of Río Gallegos, Argentina 2904.7 km (1800.9 mi) E of Punta Arenas, Chile
Location Uncertainty	Horizontal: 8.6 km; Vertical 1.9 km
Parameters	Nph = 76; Dmin = 848.8 km; Rmss = 0.73 seconds; Gp = 48° Version =
Event ID	us 7000qxkf

(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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