2025-06-10 03:46:09 (M5.4) South Sandwich Islands region -55.5 -28.3 (70fa9)

M5.4 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.4
Date-Time	Universal Time (UTC): 10 Jun 2025 03:46:09 Time near the Epicenter (1): 10 Jun 2025 01:46:09 Time in your area (1): 10 Jun 2025 09:16:09
Location	55.459S 28.252W
Depth	37 km
Distances	2372.4 km (1470.9 mi) SW of Edinburgh of the Seven Seas, Saint Helena 2520.7 km (1562.9 mi) ENE of Ushuaia, Argentina 2521.0 km (1563.0 mi) ENE of Río Grande, Argentina 2706.7 km (1678.2 mi) E of Puerto Deseado, Argentina 2708.5 km (1679.3 mi) E of Río Gallegos, Argentina
Location Uncertainty	Horizontal: 10.5 km; Vertical 6.8 km
Parameters	Nph = 78; Dmin = 544.9 km; Rmss = 0.84 seconds; Gp = 54° Version =
Event ID	us 6000qj9w

(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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