This feed shows Japan’s coastline after a major 7.5-magnitude earthquake in the Pacific Ocean prompted officials to issue tsunami warnings for most of the eastern coastline.
The Japan Meteorological Agency warned of an imminent tsunami up to 3 metres in height for parts of Hokkaido, Aomori and Iwate prefectures, after the earthquake struck off the Sanriku coast at 4.53pm local time.
The earthquake had an epicentre in the Pacific Ocean and was 10 km deep, according to the agency.
A tsunami of approximately 80 centimetres (2.6 feet) has been detected at Kuji port in Iwate prefecture, and a smaller tsunami of 40 centimetres (1.3 feet) was recorded at Miyako port in the same prefecture, the agency said.
Earlier, the authorities had identified Iwate as the area likely to be hit by the largest tsunamis, warning locals to expect incoming waves of up to 3 metres.
The size of the quake has twice been upgraded from 7.3 and then 7.4.
On Japan's own seismic intensity scale it measured an “upper 5” – strong enough to make it difficult for people to move around.
