From: mailto: == PRELIMINARY REPORT ==

Event type: Earthquake Region: southern Mid-Atlantic Ridge Geographic coordinates: 19 143S, 12 911W Magnitude: 5 1 Depth: 10 km Universal Time (UTC): 4 Dec 2025 12:36:00 Time near the Epicenter (1): 4 Dec 2025 11:36:00 Time in your area (1): 4 Dec 2025 22:36:00

Location with respect to nearby cities: 842 0 km (522 0 mi) WSW of Jamestown, Saint Helena 1251 3 km (775 8 mi) S of Georgetown, Saint Helena 2651 9 km (1644 2 mi) ESE of São José da Coroa Grande, Brazil 2653 3 km (1645 1 mi) ESE of Maragogi, Brazil 2654 6 km (1645 8 mi) ESE of Tamandaré, Brazil

ADDITIONAL PARAMETERS

event ID : us 7000rfi4

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/us7000rfi4?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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