The convergence of relatively old oceanic crust is occurring at a rate of  per year in the west portion and  per year in the east, and the dip of the Benioff Zone (the angle of the zone of seismicity that defines the down-going slab at a convergent boundary) is around 50° and extends to a depth of approximately .
The convergence rate of old oceanic crust is  per year in the west portion and  per year in the east, while the dip of the Benioff Zone (the angle of the zone of seismicity that defines the down-going slab at a convergent boundary) is around 50° and extends to a depth of approximately .