“Earthquake, thunder, fire and father” Japanese people in the past cited three things and one person who they fear most. Earthquake is one of them. In Japan, one of the nations frequently hit by earthquakes, people have particularly been worried about earthquakes that would bring major damages. Indeed, there has been a catastrophic earthquake once every several years. Our laboratory is studying how to make earthquake-resistant buildings by conducting experiments on the building structures and analyzing simulations conducted to find best way to safeguard buildings from earthquakes.