2026-06-17 19:48:25 (M4.9) South Sandwich Islands region -55.7 -26.0 (90be5)

M4.9 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	4.9
Date-Time	Universal Time (UTC): 17 Jun 2026 19:48:26 Time near the Epicenter (1): 17 Jun 2026 17:48:26 Time in your area (1): 17 Jun 2026 11:48:26
Location	55.730S 26.033W
Depth	10 km
Distances	2317.7 km (1437.0 mi) SSW of Edinburgh of the Seven Seas, Saint Helena 2647.6 km (1641.5 mi) ENE of Ushuaia, Argentina 2651.0 km (1643.6 mi) ENE of Río Grande, Argentina 2842.3 km (1762.2 mi) E of Río Gallegos, Argentina 2847.5 km (1765.5 mi) E of Puerto Deseado, Argentina
Location Uncertainty	Horizontal: 13.7 km; Vertical 1.9 km
Parameters	Nph = 38; Dmin = 688.1 km; Rmss = 0.88 seconds; Gp = 112° Version =
Event ID	us 7000su4d

(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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