There are lots of natural disasters in the world. They are earthquakes, volcanic eruptions, tornadoes and tsunamis. It is very dangerous for us, because we cannot know then it will be and where. So, some scientists try to solve this problem, but their predictions are not always accurate. A few years ago it was terrible Fukushima disaster 'cause of earthquake. Many people suffered from it. If we don't want to make the same mistakes, we should think again and again before building something. In my opinion, our lives in our hands.