Fears of a potential nuclear catastrophe are high in northern Japan today, where an explosion has been reported at the Fukushima Daiichi Nuclear Power Station. The emergency at the plant comes on top of the devastation caused by an 8.9 earthquake and a 33-foot tsunami.

Details are still emerging about what's happening at the plant. There was a blast on the site on Saturday afternoon, and the New York Times is reporting that Japanese officials have said it occurred in a turbine facility, not in the actual reactor container. But the International Atomic Energy Agency--the United Nation's arm that serves as watchdog on nuclear energy issues around the world--said on Saturday that Japan's Nuclear and Industrial Safety Agency informed them that the explosion occurred at the Unit 1 reactor.