Tsunami alert for Japan after 7.5-magnitude earthquake – with 10ft waves expected ‘immediately’

Inside homes and cafés, chandeliers swung and signs rattled while people refreshed their phones for updates from the Meteorological Agency, which warned that waves could strike repeatedly and that it was too dangerous to return. In Tokyo, hundreds of miles away, office towers trembled, a chilling reminder of Japan’s fragile security along the Ring of Fire. As the government’s crisis team convened, an anxious nation waited, watching the shoreline and remembering the day the sea once swallowed entire towns.