A moderate seismic event registered 4.8 magnitude off the coast of Japan on February 03, 2026, at 09:03 UTC. The earthquake originated in the waters near the Ibaraki Prefecture, a region frequently impacted by activity along the Japan Trench subduction zone.
Seismologists pinpointed the epicenter at coordinates approximately 36.35° N latitude and 141.15° E longitude. The hypocenter was calculated at a significant depth of 45 kilometers, indicating movement within the complex tectonic plate boundary beneath the Pacific Ocean.
The conditions at the time of the tremor were cool and stable. Monitoring stations in the vicinity reported a temperature of 5.8°C under a sky described as having few clouds. Offshore conditions included a light breeze estimated at 5 km/h, moving from the west-northwest.
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