2025-09-08 12:55:51 (M4.9) South Sandwich Islands region -56.1 -25.1 (1cbfb)

[USGS ENS <ens@xxxxxxxxxxxx>]

M4.9 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	4.9
Date-Time	Universal Time (UTC): 8 Sep 2025 12:55:52 Time near the Epicenter (1): 8 Sep 2025 10:55:52 Time in your area (1): 8 Sep 2025 04:55:52
Location	56.145S 25.076W
Depth	10 km
Distances	2326.5 km (1442.4 mi) SSW of Edinburgh of the Seven Seas, Saint Helena 2693.1 km (1669.7 mi) ENE of Ushuaia, Argentina 2699.2 km (1673.5 mi) ENE of Río Grande, Argentina 2894.2 km (1794.4 mi) E of Río Gallegos, Argentina 2908.3 km (1803.2 mi) E of Puerto Deseado, Argentina
Location Uncertainty	Horizontal: 12.0 km; Vertical 1.9 km
Parameters	Nph = 45; Dmin = 755.3 km; Rmss = 0.95 seconds; Gp = 69° Version =
Event ID	us 7000qurs

(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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