Fig. 9

Result of linear and spline interpolations for estimating coseismic deformation with long wavelength for area C shown in Fig. 1. a East–west (EW) component deformation, b up–down (UD) component deformation. a, b Calculated by linear interpolation. c East–west (EW) component deformation, d up–down (UD) component deformation. c, d Calculated by spline interpolation