A significant seismic event has rocked Japan, with a major 7.5-magnitude earthquake striking the Pacific Ocean and triggering urgent tsunami warnings across much of the eastern coastline. The quake, which occurred off the Sanriku coast at 4.53pm local time, has prompted officials to issue alerts for potentially dangerous waves.
Tsunami Warnings Issued for Eastern Japan
The Japan Meteorological Agency has warned of an imminent tsunami reaching up to 3 metres in height for parts of Hokkaido, Aomori, and Iwate prefectures. This follows the earthquake, which had an epicentre in the Pacific Ocean at a depth of 10 km, according to agency reports.
Initial Tsunami Observations
Early tsunami activity has already been detected, with waves of approximately 80 centimetres (2.6 feet) observed at Kuji port in Iwate prefecture. Additionally, a smaller tsunami measuring 40 centimetres (1.3 feet) was recorded at Miyako port in the same prefecture. Authorities had previously identified Iwate as the area most likely to experience the largest tsunamis, advising locals to prepare for incoming waves up to 3 metres high.
Earthquake Details and Intensity
The earthquake's magnitude was initially reported as 7.3, then upgraded to 7.4 before being confirmed at 7.5. On Japan's own seismic intensity scale, it registered an "upper 5," indicating strong shaking that can make it difficult for people to move around. This classification underscores the quake's significant impact on the affected regions.
Residents in the warned areas are urged to stay alert and follow official guidance as the situation develops. The combination of a powerful earthquake and potential tsunami poses serious risks to coastal communities, highlighting the importance of preparedness and timely warnings in seismically active zones like Japan.
