From: mailto: == PRELIMINARY REPORT ==

Event type: Earthquake Region: off the east coast of Honshu, Japan Geographic coordinates: 34 794N, 141 670E Magnitude: 5 1 Depth: 10 km Universal Time (UTC): 21 Dec 2025 06:58:48 Time near the Epicenter (1): 21 Dec 2025 15:58:48 Time in your area (1): 21 Dec 2025 16:58:48

Location with respect to nearby cities: 127 0 km (78 7 mi) ESE of Ōhara, Japan 129 1 km (80 0 mi) SE of Hasaki, Japan 129 8 km (80 5 mi) ESE of Katsuura, Japan 134 0 km (83 1 mi) ESE of Ichinomiya, Japan 167 4 km (103 8 mi) ESE of Chiba, Japan

ADDITIONAL PARAMETERS

event ID : us 6000rwaw

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/us6000rwaw?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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