Fig. 3From: Heterogeneous rheology of Japan subduction zone revealed by postseismic deformation of the 2011 Tohoku-oki earthquakeSchematic diagrams of the transient deformation of rocks under constant stress. a The time-dependent strain of mantle rock under constant stress. b Spring–dashpot representation of biviscous (Burgers) rheology. GK and GM denote shear modulus of the Kelvin element and the Maxwell element, respectively. ηK and ηM represent viscosity of the Kelvin element and the Maxwell element, respectivelyBack to article page