What are two examples of a subduction zones and why are they occurring in each location?

South America, Central America, and the Cascade Volcanoes are an example of this type of subduction. Japan, Indonesia, and the Aleutian Islands are examples of this type of subduction

Explanation:

Subduction is a process of destruction of the old lithospheric plate at the construction of a new plate through the divergent boundary of the mid-oceanic ridge. For subduction to take place the plate or slab need to pass through a trench or subduction zone and can occur through the collision of oceanic crust and the collision of continental and oceanic crust which one is lighter goes under and hence volcanic and mountains are formed as a surface feature. Evert plate is moving at a well-defined rate of subduction either in east or west direction as the seafloor continues to spread.

The study of where things are 

The geographic feature in the westernmost corner of kenya is answer: the great rift vally