Natural disaster, earthquake caused by the vibration of the ground due to the liberation of energy in order to reduce the stress that accumulates within the world come out to balance of crust, fixed.
Earthquakes are natural disasters caused by the vibration of the ground caused by the release of energy to reduce the stress that has accumulated inside the Earth's crust to balance constant.
The catastrophic earthquake and natural vibration of the ground due to release energy to reduce the stress accumulation within the world come to balance the crust to stabilize.