How fast does a Tsunami go?

Answer 1

actualy they go about 300-400 miles per hour. yeah pretty fast!^

I know that the waves from the tsunami in Japan, were travelling across the ocean at speeds of 8000km.

in deep open sea, they can go 500 mph or more

Answer 2

A tsunami goes 500 miles per hour when in open ocean, but slows to a speed of 30-60 mph as it nears the shore.

Answer 3

Tsunami speeds can go up to 600 miles an hour.

Answer 4

Tsunamis can travel up to about 600 miles per hour.