Renowned Geophysicist Explains Tsunami

"We had an earthquake caused by the Pacific Ocean plate sliding under the Asian plate and as it slides under the Asian plate is pushed up...any time you move the ocean floor up or down you induce a tsunami in the ocean. "Tsunamis travel fast when the ocean is deep they travel slowly when the ocean is shallow. When the ocean is deep, the wave spreads out so you have maybe a foot high wave that's spread out hundreds of miles and it's traveling at literally 500 miles an hour."