2026-05-27 21:37:39 (M4.6) South Sandwich Islands region -58.0 -26.0 (90be5)

M4.6 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	4.6
Date-Time	Universal Time (UTC): 27 May 2026 21:37:39 Time near the Epicenter (1): 27 May 2026 19:37:39 Time in your area (1): 27 May 2026 13:37:39
Location	58.033S 26.021W
Depth	95 km
Distances	2537.8 km (1573.4 mi) SSW of Edinburgh of the Seven Seas, Saint Helena 2590.8 km (1606.3 mi) E of Ushuaia, Argentina 2605.9 km (1615.7 mi) E of Río Grande, Argentina 2813.4 km (1744.3 mi) E of Río Gallegos, Argentina 2826.5 km (1752.4 mi) E of Punta Arenas, Chile
Location Uncertainty	Horizontal: 12.8 km; Vertical 9.0 km
Parameters	Nph = 25; Dmin = 772.5 km; Rmss = 0.71 seconds; Gp = 87° Version =
Event ID	us 7000snyb

(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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