Survivors of the 2011 Japanese tsunami in a small town on the north-east coast are haunted by a split second decision at a local school.

“There’s no blueprint for remediating a radioactive town and then moving people back into it.”

The author walks to his hometown after the Great Hanshin earthquake of 1995.

In the late ’80s, Lewis went to Japan to research a hypothetical: what would the economic fallout be if a major quake hit?

On the ground in post-disaster Japan.