2026-05-28 15:07:48 (M4.8) South Sandwich Islands region -56.4 -26.5 (90be5)

M4.8 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	4.8
Date-Time	Universal Time (UTC): 28 May 2026 15:07:48 Time near the Epicenter (1): 28 May 2026 13:07:48 Time in your area (1): 28 May 2026 07:07:48
Location	56.411S 26.546W
Depth	79 km
Distances	2398.8 km (1487.3 mi) SSW of Edinburgh of the Seven Seas, Saint Helena 2597.6 km (1610.5 mi) ENE of Ushuaia, Argentina 2604.0 km (1614.5 mi) E of Río Grande, Argentina 2799.9 km (1736.0 mi) E of Río Gallegos, Argentina 2818.5 km (1747.5 mi) E of Puerto Deseado, Argentina
Location Uncertainty	Horizontal: 13.5 km; Vertical 7.0 km
Parameters	Nph = 38; Dmin = 673.8 km; Rmss = 1.02 seconds; Gp = 102° Version =
Event ID	us 7000sp42

(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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