information about Tsunamis

A Tsunamis is when the sea bracks all the buildings. But what it really is. Is a Earthquake in the sea. People drowned in the water because they don’t know. And there are buildings collapsing on people. And people are screaming for help. People are crashed by the buildings. They help each other but They died fast because its cold and they run out of food fast. And they freeze to death when they are outside because they have no warem things on.