Japan is one of the most seismically-active areas in the world.

As a result, [modern] Japanese construction is incredibly resilient.

I've never been in Tokyo, during a strong quake, but I'm told the skyscrapers wave around like drunken dancers.

I live in Japan...I've never wanted to move to the USA because of seismic activity .

I was making a joke, that even though CA is notoriously unstable and "waiting for The Big One", Japan is way more active.