Post-seismic deformation of a uniform half-space due to a buried inclined dip-slip fault
摘要
The displacements and the stresses for postseismic deformation (PSD) at an arbitrary point induced by a long inclined dip-slip fault of finite width embedded in a homogeneous, elastically isotropic (HEI) half-space are obtained. The coseismic deformation field is represented by the elastic solution and the PSD is found on subtracting the elastic solution from the viscoelastic solution. The correspondence principle (CP) of linear viscoelasticity is applied to get the viscoelastic displacements and stresses at any point of the HEI half-space. The displacements and the stresses are used to study the effect of relaxation time for various dip angles. Graphs depicting the behavior of the coseismic and postseismic stresses with the epicentral distance are plotted. Contour maps for the postseismic displacements are plotted for various dip-angles for different relaxation times.