Tokyo: An earthquake preliminarily measured at 5.6 magnitude has hit off the Japanese coast, just north of Tokyo, Japanese national broadcaster NHK reports. Local news outlets say the quake was felt in the Saitama and Tokyo areas, with buildings swaying.
Metro operations were briefly suspended on all routes in Tokyo, but services restarted four minutes later. A 5.6 quake is considered strong according to the Japanese 7-point scale. NHK reports there was no immediate tsunami warning, however.
Japan Nuclear Power Association says a reactor at Tokai Nuclear Plant in Tokai village has “suspended operation” due to the quake. Tokyo Electric Power reports no incidents at the plant.