2026-05-20 23:00:58 (M5.7) South Sandwich Islands region -56.1 -28.1 (70fa9)

M5.7 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.7
Date-Time	Universal Time (UTC): 20 May 2026 23:00:59 Time near the Epicenter (1): 20 May 2026 21:00:59 Time in your area (1): 21 May 2026 04:30:59
Location	56.113S 28.050W
Depth	112 km
Distances	2423.5 km (1502.6 mi) SW of Edinburgh of the Seven Seas, Saint Helena 2514.9 km (1559.2 mi) ENE of Ushuaia, Argentina 2518.8 km (1561.7 mi) E of Río Grande, Argentina 2711.5 km (1681.1 mi) E of Río Gallegos, Argentina 2723.5 km (1688.5 mi) E of Puerto Deseado, Argentina
Location Uncertainty	Horizontal: 10.2 km; Vertical 7.1 km
Parameters	Nph = 65; Dmin = 574.8 km; Rmss = 0.98 seconds; Gp = 63° Version =
Event ID	us 6000sz3x

(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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