Yamazaki, T. (2000) Interaction between subducting seamonts and overriding forearc wedges, and its relation to large earthquakes: a review. Bull. Geol. Surv. Japan,51, 103-111.

Abstract
This paper presents a review of recent studies on the interaction between the overriding plates and topographic highs on subducting plates like seamounts, and its relation to large earthquake generation. Seamount subduction produces characteristic structures on forearc wedges. A topographic swell and new backthrusts occur landward of a subducting seamount. Behind the seamount, a topographic depression with a scarp is formed at first, and landward dipping normal faults are produced when the seamount subduction proceeds further. Recently, a possibility of topographic highs on subducting plates for acting as seismogenic asperities is calling attention of many researchers. A model was proposed that large thrust-type earthquakes at the Chilean-type margins are generated by rupture of jammed seamounts at the base of the overriding plates. Another model postulates that subduction of oceanic plateaus and seamount chains increases seismic coupling. Based on precise bathymetry and seismicity data in the Middle America convergent margin off Costa Rica, on the other hand, it was proposed that subduction of rough seafloor could cause low interplate coupling along relatively small asperities compared with the regions of flat seafloor covered with sediments which could have large and strong contact zones. A similar interpretation was presented for the relation between seismicity along the Northeast Japan margin and relief of the subducting Pacific plate. Swath mapping of margins around Japan are in progress, which will enable us closer examination of the relationship.