Have you ever experienced big earthquake? I have never experienced it. In the future, very big earthquake may be happen in Tokyo. If the big earthquake happen, Japan would have a lot of trouble. I think most Japanese people forget about the very big earthquake which was happen in Tohoku area recently. Today, I would like to think about a big earthquake which was happen in Japan, and the current Tohoku area’s situation. After that, I am going to tell you about my opinion for the problem.