Update: Emergency Backup Systems Operating at Nuclear Facilities
NHK says power cuts are occurring at the Onagawa nuclear power plant in Miyagi Pref., although radiation levels around the plant remain unchanged so far.
At 12:23 a.m. the Nuclear and Industrial Safety Agency, an arm of the Japanese government, began holding an emergency press conference. An official said external sources of electricity have been cut to both the Higashi-Dori nuclear power plant in Aomori Pref., in northern Japan and the Rokkasho nuclear recycling plant, which I wrote in the latest issue of Forbes magazine . Both plants are reportedly operating normally via on-site emergency generators.
Several other nuclear power plants in the area have lost external power and are relying on backup generators, said a spokesman for the Nuclear and Industrial Safety Agency (NISA) at a press conference currently in progress.