The external power supply to a uranium processing facility in Okayama Prefecture was temporarily cut following a powerful Oct. 21 earthquake that hit Tottori Prefecture and surrounding areas, the Nuclear Regulation Authority (NRA) said.
External power was lost for a time at the Japan Atomic Energy Agency's Ningyo-toge Environmental Engineering Center in Kagamino, Okayama Prefecture, after the magnitude-6.6 quake. Locally, the quake registered an upper 5 on the 7-point Japanese seismic intensity scale, according to the NRA.
However, no problems were reported at the plant, as an emergency power supply system kicked in immediately. The facility was not in operation at the time of the quake.
In related news, operations at the No. 3 reactor at Shikoku Electric Power Co.'s Ikata Nuclear Power Plant in Ehime Prefecture have not been disrupted. There is reportedly no problem with Chugoku Electric Power Co.'s Shimane nuclear plant in Shimane Prefecture, which is not in operation.