2025-06-28 18:18:20 (M5.1) South Sandwich Islands region -55.8 -27.1 (70fa9)

M5.1 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.1
Date-Time	Universal Time (UTC): 28 Jun 2025 18:18:20 Time near the Epicenter (1): 28 Jun 2025 16:18:20 Time in your area (1): 28 Jun 2025 23:48:20
Location	55.790S 27.131W
Depth	35 km
Distances	2361.1 km (1463.9 mi) SW of Edinburgh of the Seven Seas, Saint Helena 2579.4 km (1599.2 mi) ENE of Ushuaia, Argentina 2582.2 km (1601.0 mi) ENE of Río Grande, Argentina 2773.1 km (1719.3 mi) E of Río Gallegos, Argentina 2778.8 km (1722.9 mi) E of Puerto Deseado, Argentina
Location Uncertainty	Horizontal: 11.8 km; Vertical 1.9 km
Parameters	Nph = 60; Dmin = 621.4 km; Rmss = 0.56 seconds; Gp = 72° Version =
Event ID	us 7000q9dv

(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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