All trains in Touhoku area, Yamagata area, Akita area is under complete stall. This incldes shinkansen (bullet trains) as well.
JapanRailway does not have a timeline in when the transport network will be repaired. (2011/03/12 4:50)
Joetsu area, Nagano Shinkansen is working, although rather brittle.
(地下鉄南北線) nannboku-sen subway halted.
Bus is working between (泉中央駅) Izumichuuou Station (仙台駅) Sendai Station.
City bus is partially working from 6:30 with out any set timetable, only in limited area.