Japan saw its largest earthquake ever recorded in 2011, a magnitude-9.1 quake that struck the Tohoku region and caused a huge tsunami.

But it is haunted by the memory of a massive 9.0-magnitude undersea quake off northeastern Japan in 2011, which triggered a tsunami that left around 18,500 people dead or missing. The 2011 tsunami ...

But the country is haunted by the memory of a massive 9.0-magnitude undersea quake off northeastern Japan in March 2011, which triggered a tsunami that left around 18,500 people dead or missing.