What's the most at-risk U.S. nuclear power plant?

From CBS News:

Indian Point, located in Buchanan, N.Y., has the highest risk of core damage in the event of an earthquake, according to NRC estimates reported by MSNBC. At a 1 in 10,000 chance of core breach, that's right on the verge of what the NRC calls "immediate concern regarding adequate protection."

The East Coast comes off much worse than other parts of the country. The second plant on the list is Pilgrim 1 in Massachusetts. Number three is in Pennsylvania. The only West Coast plant is Diablo Canyon in California at number nine.

What explains it?

The government's list considered how close the plants were to major fault lines and how well they were designed to handle an earthquake. Back in the 1960s and 70s, when most of the plants were built, the government knew about earthquake risks on the West Coast. Those plants were designed to withstand them. But new surveying technology has revealed fault lines in the central and eastern states where plants were not designed for the serious stresses of a large quake.

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