Near East Coast Of Honshu, Japan

A magnitude 5.8 earthquake occurred near the east coast of Honshu on 22 August 2026 at 17:00 UTC, with its epicentre approximately 61 kilometres deep. The affected area extends roughly 200 kilometres from the epicentre, including the local region around Ryugasaki. Over 140 felt reports have been recorded.

If you are on site, expect aftershocks to continue in the coming hours and days. Ground shaking of this magnitude can cause structural damage to buildings and infrastructure. Assess your immediate surroundings for hazards such as fallen objects or damaged structures, and move to open ground away from buildings if you feel unsafe.

Follow all instructions from local authorities and emergency services. If you are in a building, remain alert for aftershocks and be prepared to take shelter. For any injuries or health concerns, contact local health authorities or emergency services. Monitor official channels for updates on the situation and any evacuation orders.

This alert is based on data from EMSC, USGS, and GDACS.