How long after the earthquake will rebuilding begin in those areas directly affected by the earthquake? How long after the tsunami will rebuilding begin in tho

How long after the earthquake will rebuilding begin in those areas directly affected by the earthquake? How long after the tsunami will rebuilding begin in those areas directly affected by the tsunami? How long after the meltdown will rebuilding begin in those areas directly affected by the meltdown? And how long after the meltdown will rebuilding begin in those areas indirectly affected by the meltdown? (evacuation zone)