Residents of the port town of Kamaishi in Iwate prefecture watched in horror as the first huge tsunami waves hit, sweeping away cars and buildings.
One group managed to scramble to safety on higher ground, where they watched as the water surged towards them. Others were stranded on the roof of a multi-storey building as the water level rose rapidly below
Some residents of the Minamisanriku managed to scramble to high ground after hearing the tsunami warning. This dramatic amateur footage shows the devastating impact of the tsunami sweeping through their town