Watch for physical premonitions of disaster.
Landslides and debris flows cause about half of the deaths that occur each year in Japan from natural disasters. In many cases, a major land shift is preceded by small but observable phenomena. For example, the river level drops even though it is raining, or underground rumblings can be heard, or small stones roll down a hillside. Such early warning signs do not always occur, but you should always be alert to changes in your everyday environment.