Fig. 3: SSE numerical simulation.
From: Secondary acceleration of slip fronts driven by slow slip event coalescence in subduction zones
a–c Three model configurations, each comprising VS (a-b > 0) region surrounding a central VW (a-b < 0) patch. a, In the model Ⅰ, the VW region exhibits variations in a-b along the strike. b, In the model Ⅱ, the VW region shows variations in Dc along the strike. c, In the model Ⅲ, the VW region displays variations in \({\sigma }_{n}\) along the strike. d–f, Spatiotemporal evolution of slip rates following the coalescence of SSEs during the deceleration phase for the three models. In panel d, the red line represents the heterogeneous variation of a-b. The horizontal red lines in panels b and c display the edges of the barrier. g–i, Temporal evolution of moment rate and maximum stress for the coalesced events in the three models. Due to the resolution of the patches setting, the measured maximum stress exhibits oscillations. The red dashed line indicates the time of slip front coalescence.
