The Pacific Ring of Fire is where the majority of the volcanic activity on the Earth occurs. Subduction of the Pacific plate beneath the North American plate in the north creates the Aleutian Islands ...The Pacific Ring of Fire is where the majority of the volcanic activity on the Earth occurs. Subduction of the Pacific plate beneath the North American plate in the north creates the Aleutian Islands volcanoes. Volcanoes at convergent plate boundaries are found all along the Pacific Ocean basin, primarily at the edges of the Pacific, Cocos, and Nazca plates. The volcanoes are located just above where the subducting plate is at the right depth in the mantle for there to be melting (Figure 1).
