2025-08-23 12:58:55 (M5.2) South Sandwich Islands region -56.3 -26.8 (90be5)

M5.2 Earthquake - South Sandwich Islands region

Preliminary Report

Magnitude	5.2
Date-Time	Universal Time (UTC): 23 Aug 2025 12:58:55 Time near the Epicenter (1): 23 Aug 2025 10:58:55 Time in your area (1): 23 Aug 2025 04:58:55
Location	56.318S 26.840W
Depth	75 km
Distances	2399.9 km (1487.9 mi) SSW of Edinburgh of the Seven Seas, Saint Helena 2582.4 km (1601.1 mi) ENE of Ushuaia, Argentina 2588.2 km (1604.7 mi) E of Río Grande, Argentina 2783.2 km (1725.6 mi) E of Río Gallegos, Argentina 2799.8 km (1735.9 mi) E of Puerto Deseado, Argentina
Location Uncertainty	Horizontal: 12.0 km; Vertical 6.8 km
Parameters	Nph = 31; Dmin = 653.4 km; Rmss = 0.62 seconds; Gp = 68° Version =
Event ID	us 6000r3bz

(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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