Formation of volcanoes and earthquakes

?
  • Created by: Ru222
  • Created on: 14-11-21 19:33

Formation of volcanoes and earthquakes

Similarities

  • destructive (earthquake)- tension builds when one plate gets stuck as it moves past the other
  • conservative(earthquake)- tension builds when the plates that are grinding past each other get stuck
  • constructive (earthquake)- tension builds along cracks in the plate as they move away from each other

Differences

  • destructive(volcano)- at a destructive margin, the denser oceanic plate is subducted beneath the continental plate, and moves down into the mantle, where it melts. a pool of magma forms which then rises through cracks in the plates called vents. magma (called lava when it reaches the surface) erupts, forming a volcano
  • conservative (volcano)- at a conservative margin, only earthquakes occur
  • constructive( volcano)- magma rises up into the gap, created by the  plates moving apart, forming a volcano

Overall comparison

volcanoes occur at destructive and constructive plate margins whereas earthquakes occur at all three types of plate margin- they occur due to a buildup of tension at all three types of plate margins 

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Natural hazards resources »