An unimaginable wave
Japan is one of the richest countries in the world and one of the most technologically developed. It has centuries of experience of tsunamis and how to defend against them. Yet the wave that rolled over the coastal town of Otsuchi in the north east of Japan a week ago devastated everything in its path. As Mure Dickie discovers, this wave was bigger than anything seen before.
Edited by Steve Ager