What would happen if a major catastrophe struck the United States? Using past natural disasters as an example, this detailed and disturbing collection from History examines tsunamis, earthquakes, volcanic eruptions, hurricanes and even an asteroid impact, to see what disasters could be coming our way.The same geological forces that ripped apart the ancient world still roil beneath the surface today. Will history repeat itself? Computer animations, models, and recreations provide a jaw dropping view of what a series of natural disasters could do to heavily populated modern day cities.Mega Disasters examines it all quakes, droughts, freezes and eruptions.Theyve happened before; will they happen again?