tsunami

Alerts relating to the earthquake, recorded at a depth of 10km (6.2 miles), were disseminated on public media Officials in Japan have warned of an increased risk of a "huge" earthquake in the next week after a 7.7 magnitude quake struck off the north-east coast, triggering an evacuation order and warnings of 3m (10ft) tsunami waves. Thousands of people were told to leave coastal areas for higher ground after the quake in waters off Iwate prefecture, 530km (330 miles) north of the capital Tokyo. The biggest tsunami waves measured 80cm. Tsunami warnings and advisories were lifted hours after the