Most active volcanoes are found along divergent plate boundaries that allows magma to go out and push the plates apart, and these are also found along convergent plate boundaries where there is subduction of plate and melts the plate and allows magma to rise, while most earthquakes occur at transform and convergent plate boundaries; mountains are along convergent plate boundaries where there pushing of crust without breaking thus forming an elevation, it is also due to piling of pieces of crust as they converge.
