From: mailto: == PRELIMINARY REPORT ==

Event type: Earthquake Region: Tonga Geographic coordinates: 20 959S, 174 171W Magnitude: 5 8 Depth: 10 km Universal Time (UTC): 31 Jan 2026 20:59:31 Time near the Epicenter (1): 1 Feb 2026 09:59:31 Time in your area (1): 1 Feb 2026 06:59:31

Location with respect to nearby cities: 92 0 km (57 0 mi) ENE of ‘Ohonua, Tonga 108 9 km (67 5 mi) E of Nuku‘alofa, Tonga 825 8 km (512 0 mi) SSW of Pago Pago, American Samoa 828 9 km (513 9 mi) SSW of Apia, Samoa 831 7 km (515 6 mi) ESE of Nasinu, Fiji

ADDITIONAL PARAMETERS

event ID : us 6000s5s7

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/us6000s5s7?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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