An earthquake with a preliminary magnitude of 6.2 rocked Tokyo and surrounding areas of eastern Japan on Friday, but there was no threat of a tsunami, the weather agency said.The quake occurred at 7:03 p.m., registering a lower 5 on the Japanese seismic intensity scale of 7 in parts of Ibaraki and Chiba prefectures, according to the Japan Meteorological Agency.Bullet trains on the Hokuriku, Joetsu and Tohoku Shinkansen lines were halted for around 10 minutes due to a temporary blackout, East Japan Railway Co. said.There were no immediate reports of casualties due to the earthquake.Central T…READ FULL ARTICLE