Some train services in the Tokyo area were temporarily disrupted Friday due to a power outage, the second such incident this month, affecting some 230,000 people and prompting some passengers to be unloaded onto railway tracks, operator JR East said.It said the outage at JR Ueno Station at around 6:55 a.m. halted 81 trains, including on the Joban Line between Ueno and Tsuchiura stations as well as parts of the Takasaki Line and the Tohoku Line, for up to seven hours.It follows a similar incident on Jan. 16 in which trains on Tokyo's Yamanote loop line, also operated by JR East, were halted …READ FULL ARTICLE