Thank you for visiting Ohio.com. We noticed you are using an outdated browser that may not give you the best user experience. We recommend current browser versions of Google’s Chrome, Microsoft’s Edge, Mozilla’s Firefox. For more specific information on how to update your browser --Click Here or visit your browser’s website.
In this May 2011 file photo, a worker is seen in the area surrounding a tree farm in North Perry, Ohio, near the two cooling towers of the Perry Nuclear Power Plant looming in the background. The risk of an earthquake causing a severe accident at a nuclear power plant is up to 24 times greater than previously believed, according to an AP analysis of preliminary government data, and the nation's nuclear regulator believes that a quarter of reactors may need modifications to make them safer. The Nuclear Regulatory Commission says more than two dozen plants in the eastern and central U.S. may need upgrades because they're more likely to get hit with an earthquake larger than the one their design was based on. It's a belated conclusion; for more than a decade, regulators ignored the evidence of increased quake risks. (AP Photo/Amy Sancetta, File)