Japan issues tsunami warning after magnitude 7.6 earthquake
Wave as high as 3 metres could hit north-east of country after powerful tremor 50 miles off coast
A powerful magnitude 7.6 earthquake has shaken Japan, prompting tsunami warnings and orders for residents to evacuate.
A tsunami as high as 3 metres (10ft) could hit the country’s north-eastern coast after the earthquake occurred offshore at 11.15pm local time (2.15pm GMT), the Japan Meteorological Agency (JMA) said.