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Earthquake is a natural phenomenon caused by the release of strain energy stored in the rock below the surface instantaneously. That is a process that is rapidly changing the world and pronounced(Stress) caused by cracks. Or faults that occur on Earth. The world has been freed up to the surface.

The earthquake is second nature, caused by the release of energy from the stress that is stored in the rocks beneath the surface of the earth immediately. It is a process that areas on the rapidly changing world and pronounced. (Stress) caused by a crack or fault occurring on a crust. Within the world are freed up to the surface world.

an earthquake is a natural phenomenon that have been caused by the release of the stress that is stored in the rock beneath the skin is a sudden, i.e. the process of rapid change in the world and obviously(stress) that occur in any cracks or slide that occurs on the shell in the world world is being released to surface world.