2026-02-17 03:36:37 (M5.4) South Sandwich Islands region -57.4 -30.4 (90be5)

M5.4 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.4
Date-Time	Universal Time (UTC): 17 Feb 2026 03:36:38 Time near the Epicenter (1): 17 Feb 2026 01:36:38 Time in your area (1): 16 Feb 2026 19:36:38
Location	57.383S 30.394W
Depth	10 km
Distances	2292.5 km (1421.4 mi) E of Tolhuin, Argentina 2346.2 km (1454.7 mi) E of Ushuaia, Argentina 2355.9 km (1460.7 mi) E of Río Grande, Argentina 2557.3 km (1585.5 mi) E of Río Gallegos, Argentina 2578.0 km (1598.3 mi) E of Punta Arenas, Chile
Location Uncertainty	Horizontal: 8.1 km; Vertical 1.6 km
Parameters	Nph = 55; Dmin = 1966.7 km; Rmss = 1.73 seconds; Gp = 65° Version =
Event ID	us 6000s9p3

(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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