Earthquake is normal, due to the platonic plates movements. When 2 plates meet and geser with each other, there's a lot of energy being emitted out. This energy causes stress to the plates and the plates will be on top of one another (overlap). So, there you have it, earthquake. Thats why the ring of fire is more prone to earthquake cuz thats where the plates bergeser with each other.

volcano is caused by platonic plates movement, and platonic plates movement is caused by the movement in the magma (hot lava goes up, cooler lava goes down, so it kinda "rotates") below the plate. This rotation move the plates, thus forming volcanoes, earthquake and thus form tsunamis and of course, life.

Correct if im wrong, thats what i understand when i asked the same Q last time to my parents .

This post has been edited by SnoWFisH: Oct 3 2009, 06:20 PM