2026-09-21 21:37:05 (M5.0) South Sandwich Islands region -56.5 -24.0 (70fa9)

M5.0 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.0
Date-Time	Universal Time (UTC): 21 Sep 2026 21:37:05 Time near the Epicenter (1): 21 Sep 2026 19:37:05 Time in your area (1): 22 Sep 2026 03:07:05
Location	56.462S 23.969W
Depth	10 km
Distances	2325.2 km (1441.6 mi) SSW of Edinburgh of the Seven Seas, Saint Helena 2750.1 km (1705.1 mi) ENE of Ushuaia, Argentina 2758.5 km (1710.3 mi) ENE of Río Grande, Argentina 2956.5 km (1833.0 mi) E of Río Gallegos, Argentina 2977.6 km (1846.1 mi) E of Puerto Deseado, Argentina
Location Uncertainty	Horizontal: 12.1 km; Vertical 1.9 km
Parameters	Nph = 32; Dmin = 829.6 km; Rmss = 0.61 seconds; Gp = 73° Version =
Event ID	us 7000tj0z

(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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