2025-09-19 09:11:56 (M5.4) South Sandwich Islands region -58.8 -24.6 (70fa9)

M5.4 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.4
Date-Time	Universal Time (UTC): 19 Sep 2025 09:11:56 Time near the Epicenter (1): 19 Sep 2025 07:11:56 Time in your area (1): 19 Sep 2025 14:41:56
Location	58.769S 24.610W
Depth	10 km
Distances	2572.5 km (1595.0 mi) SSW of Edinburgh of the Seven Seas, Saint Helena 2657.7 km (1647.8 mi) E of Ushuaia, Argentina 2677.2 km (1659.9 mi) E of Río Grande, Argentina 2890.0 km (1791.8 mi) E of Río Gallegos, Argentina 2896.4 km (1795.7 mi) E of Punta Arenas, Chile
Location Uncertainty	Horizontal: 10.8 km; Vertical 1.9 km
Parameters	Nph = 59; Dmin = 884.5 km; Rmss = 0.44 seconds; Gp = 83° Version =
Event ID	us 7000qx91

(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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