Japan nuclear plants not affected by strong quake

TOKYO (Reuters) - Japan Atomic Power Co and Tokyo Electric Power Co (Tepco) reported no irregularities at their three nuclear plants in eastern Japan following a magnitude 5.6 quake that hit north of Tokyo on Tuesday. A Japan Atomic official said there have been no irregularities at the 1.1-gigawatt Tokai Daini plant, which has been shut since May 2011. A Tepco spokeswoman said there has been no irregularities at Fukushima-Daiichi nuclear plant, wrecked by the March 2011 quake, and Fukushima-Daini plant, which has been shut since March 2011. (Reporting by Kentaro Hamada and Mari Saito; Editing by Michael Perry)