2026-03-01 03:41:55 (M4.9) South Sandwich Islands region -55.5 -27.5 (90be5)

M4.9 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	4.9
Date-Time	Universal Time (UTC): 1 Mar 2026 03:41:55 Time near the Epicenter (1): 1 Mar 2026 01:41:55 Time in your area (1): 28 Feb 2026 19:41:55
Location	55.483S 27.503W
Depth	33 km
Distances	2346.5 km (1454.9 mi) SW of Edinburgh of the Seven Seas, Saint Helena 2565.7 km (1590.7 mi) ENE of Ushuaia, Argentina 2566.7 km (1591.3 mi) ENE of Río Grande, Argentina 2754.2 km (1707.6 mi) E of Puerto Deseado, Argentina 2755.0 km (1708.1 mi) E of Río Gallegos, Argentina
Location Uncertainty	Horizontal: 15.0 km; Vertical 6.3 km
Parameters	Nph = 29; Dmin = 592.1 km; Rmss = 0.92 seconds; Gp = 95° Version =
Event ID	us 7000s15y

(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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