A tsunami warning has been issued
after a 7.3 magnitude earthquake struck off Japan's eastern coast.
The epicentre of the quake was about 245km (150 miles) south-east of Kamiashi
at a depth of about 36km, the US Geological Survey said.The quake was felt in the capital Tokyo, media report.
The tsunami warning was issued for the coast of Miyagi Prefecture, which was hit by a devastating earthquake and tsunami in March 2011.