From: mailto: == PRELIMINARY REPORT ==

Event type: Earthquake Region: Santiago del Estero, Argentina Geographic coordinates: 28 270S, 63 155W Magnitude: 5 6 Depth: 588 km Universal Time (UTC): 27 Dec 2025 10:40:50 Time near the Epicenter (1): 27 Dec 2025 07:40:50 Time in your area (1): 27 Dec 2025 20:40:50

Location with respect to nearby cities: 37 9 km (23 5 mi) NW of Añatuya, Argentina 100 3 km (62 2 mi) SW of Quimilí, Argentina 120 8 km (74 9 mi) ESE of Santiago del Estero, Argentina 172 3 km (106 8 mi) NW of Tostado, Argentina 188 6 km (116 9 mi) ESE of Termas de Río Hondo, Argentina

ADDITIONAL PARAMETERS

event ID : us 7000rl1p

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/us7000rl1p?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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