From: mailto: == PRELIMINARY REPORT ==

Event type: Earthquake Region: South Sandwich Islands region Geographic coordinates: 55 624S, 28 064W Magnitude: 5 4 Depth: 54 km Universal Time (UTC): 13 Sep 2025 04:32:09 Time near the Epicenter (1): 13 Sep 2025 02:32:09 Time in your area (1): 13 Sep 2025 14:32:09

Location with respect to nearby cities: 2380 0 km (1475 6 mi) SW of Edinburgh of the Seven Seas, Saint Helena 2527 5 km (1567 0 mi) ENE of Ushuaia, Argentina 2528 8 km (1567 8 mi) ENE of Río Grande, Argentina 2717 7 km (1685 0 mi) E of Río Gallegos, Argentina 2719 5 km (1686 1 mi) E of Puerto Deseado, Argentina

ADDITIONAL PARAMETERS

event ID : us 7000qvx7

This event has been reviewed by a seismologist

(1) Nominal Standard Time; local and daylight savings time zone may differ For subsequent updates, maps, and technical information, see: https://earthquake usgs gov/earthquakes/eventpage/us7000qvx7?utm_medium=email&utm_source=ENS&utm_campaign=realtime or https://earthquake usgs gov/

National Earthquake Information Center U S Geological Survey

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