Earthquake

Before about one year ago, a big earthquake was happened in Tohoku. About one year past, revival work don't finish. Now people do it. I watched news that big eaerhquake also will be happened in capital city in Japan. It may also happen within four years.  I live in Osaka. Osaka is far from capital city. But we don't know when earthquakes are happened. Japan is a country subject to frequent earthquakes. So we have to preparation to take refuge.