Tsunami have killed more people than earthquakes. Japan alone has recorded of tsunami that have killed thousands of people.Today,special equipment on the bottom of the sea tells scientists when earthquakes have occurred.Then the scientists can warn people about tsunamis.In 1946 there was no warning of a tsunami that killed 159 people in Hawaii.But,fourteen years later,another tsunami struck.This time the scientists wear able to give plenty of warnning. Unfortunately, many people don't think the tsunami would be serious and stayed.As a result many died.