You can just imagine the power ehind the waves. If hitting water going 50 mph is like hiting a brock wall, then there is a 50 mph brick wall rushing at you. Not only do the wavers whip people off thier feet, throwing them into any objects around, and drowning them, but also hurls objects in every direction. Like someone said, on island was a mear avg of 10 ft above sea level. And when a 50 foot waves i heading at you, it's hard tog et out of the way.
There has been reports that small islands were moved, and the earth began reotating faster. I'll see if I can find a link about this.