How do tsunamis cause great damage and can they be predicted?
Out in the middle of the ocean, tsunamis, fast-moving waves resulting from an earthquake, are generally mild, reaching heights of about 3 or 4 feet (1 to 1.2 meters). As the ocean waves approach the shallower water of the shore, the rising sediment rapidly slows them down from about 600 to 100 miles per hour (960 to 160 kilomete
