The events taking place in two different locations are described below: location a: movement of plates causes hot spots to move to a location with thinner crust location b: tectonic plates move away from each other under the sea in which location will active volcanoes most likely be formed and why? location a, because the magma breaks through the thin crust location a, because cracks between plates are filled with molten rocks which solidify location b, because the oceanic plate and continental plate are pushed up through the crust location b, because the thinner oceanic plate will be pushed under the continental plate