These weaknesses are not associated with any plate boundary, but are holes in the earth's crust that move as the plate they are associated with moves. That is why there is a chain of ... Transform plate boundaries and continent-continent collision plate boundaries do not normally form volcanoes. read more
Recall that there are three types of plate boundaries: convergent, divergent, and transform. Volcanism occurs at convergent boundaries (subduction zones) and at divergent boundaries (mid-ocean ridges, continental rifts), but not commonly at transform boundaries. read more
The most volcanism occurs at diverging plate boundary where plates separate. Volcanoes also form at converging plate boundaries where one plate dives beneath the other at subduction zones. Answer 3: Usually volcanoes are found near subduction zones, where oceanic crust sinks beneath continental crust. read more