Having lost his daughter in the quake-tsunami disaster two years ago, Toshiro Sato, a teacher in Onagawa, Miyagi Prefecture, believes the best disaster prevention is not to forget what happened that fateful day and confront it.

"I don't want to let any more students die at school," said the 49-year-old Sato, who is in charge of disaster prevention education at Onagawa No. 1 Junior High School in the coastal town.

Onagawa was among the areas hit hardest by the magnitude 9.0 earthquake and tsunami on March 11, 2011.