2026-07-11 10:26:45 (M6.4) South Sandwich Islands region -55.5 -29.0 (70fa9)

M6.4 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	6.4
Date-Time	Universal Time (UTC): 11 Jul 2026 10:26:45 Time near the Epicenter (1): 11 Jul 2026 08:26:45 Time in your area (1): 11 Jul 2026 15:56:45
Location	55.536S 28.970W
Depth	45 km
Distances	2407.1 km (1492.4 mi) SW of Edinburgh of the Seven Seas, Saint Helena 2474.6 km (1534.3 mi) ENE of Ushuaia, Argentina 2474.8 km (1534.4 mi) ENE of Río Grande, Argentina 2661.8 km (1650.3 mi) E of Puerto Deseado, Argentina 2662.3 km (1650.6 mi) E of Río Gallegos, Argentina
Location Uncertainty	Horizontal: 5.5 km; Vertical 6.2 km
Parameters	Nph = 72; Dmin = 502.2 km; Rmss = 1.10 seconds; Gp = 55° Version =
Event ID	us 7000szpb

(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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