The Coming Quake?

FEMA predicts a catastrophic earthquake for the American south and midwest.

FEMA predicted a large earthquake would cause "widespread and catastrophic physical damage" across Alabama, Arkansas, Illinois, Indiana, Kentucky, Mississippi, Missouri and Tennessee -- home to some 44 million people.

Tennessee is likely to be hardest hit, according to the study that sought to gauge the impact of a 7.7 magnitude earthquake in order to guide the government's response.

In Tennessee alone, it forecast hundreds of collapsed bridges, tens of thousands of severely damaged buildings and a half a million households without water.

Transportation systems and hospitals would be wrecked, and police and fire departments impaired, the study said.