Fig. 8From: Omori-like slow decay (p < 1) of postseismic displacement rates following the 2011 Tohoku megathrust earthquakea Evolution of the vertical ground displacement rates after the 2011 Tohoku Earthquake. The red dashed line represents the best-fit to the observations based on Eq. (1) using the same \(p_{d}\) and \(c_{d}\) as those in the horizontal case (Fig. 2). The violet dotted line shows a reference time in mid-2013 for possible change of the dominant mechanism of the postseismic deformation (Yamaga and Mitsui 2019). b Enlarged figure for a comparison with the Maxwellian viscoelastic simulation (green points) as Fig. 7. The orange squares represent median values of the displacement rates for each time frameBack to article page