For the foreshock and the largest aftershock the previous equations overestimate the observed ground motions but the revised equations reasonably agree well with observed. For the Tohoku earthquake even in the previous equations overestimate the observed ground motions at a period of about 10 s. The observed spectra at 10 s for the Tohoku earthquake and the MW7.8 largest aftershock are comparable at stations with similar fault distances in the Kanto basin, although the MWof the nearest fault of the Tohoku earthquake is 8.1. These facts suggest that the Tohoku earthquake generate less long-period ground motions at about 10 s for MW.