Major 7.4-magnitude quake hits off Japan, tsunami warning issued

A powerful earthquake of magnitude 7.4 has shaken northeastern Japan. The Japan Meteorological Agency reported the tremor off the coast. Tsunami warnings have been issued for areas including Iwate, Aomori, and Hokkaido prefectures. The quake's epicentre was in the Pacific Ocean. It was strong enough to make movement difficult and cause damage to walls.