“…In the simplest form of the Coulomb wedge model, the angle made by the slope of the seafloor and dip of the megathrust is controlled by the frictional strength of the megathrust interface and the internal strength of the wedge (Davis et al, 1983;Dahlen, 1990). If the wedge becomes oversteepened, its critical shape is maintained by deformation (faulting) within the wedge and may result in slope failure at the seafloor, e.g., in the form of submarine landslides or turbidites, which are common on the wedge (e.g., Adams, 1990;Goldfinger et al, 2000;von Huene et al, 2004;Strasser et al, 2011Strasser et al, , 2012. Submarine landslides, which in many cases occur due to the presence of a weak layer in shallow strata (e.g., Masson et al, 2006), also occur in the subduction inputs (Kitamura and Yamamoto, 2012).…”