2025-04-21 15:46:59 (M5.1) South Sandwich Islands region -56.1 -28.0 (70fa9)

M5.1 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.1
Date-Time	Universal Time (UTC): 21 Apr 2025 15:46:59 Time near the Epicenter (1): 21 Apr 2025 13:46:59 Time in your area (1): 21 Apr 2025 21:16:59
Location	56.127S 27.967W
Depth	115 km
Distances	2421.8 km (1501.5 mi) SW of Edinburgh of the Seven Seas, Saint Helena 2519.6 km (1562.1 mi) ENE of Ushuaia, Argentina 2523.6 km (1564.6 mi) E of Río Grande, Argentina 2716.5 km (1684.2 mi) E of Río Gallegos, Argentina 2728.7 km (1691.8 mi) E of Puerto Deseado, Argentina
Location Uncertainty	Horizontal: 11.4 km; Vertical 7.7 km
Parameters	Nph = 43; Dmin = 580.2 km; Rmss = 0.89 seconds; Gp = 69° Version =
Event ID	us 7000pu0x

(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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