Earthquake is a natural phenomenon. Caused by the motion of the earth's crust suddenly Most often the straight edge of the plates was the earthquake of the world
.The move occurred because the rock melt under the crust. Get heat from the core. The upper crust and floating push all the time.Along with the energy accumulation inside. The edges of the pieces of the crust is the same rubbing together or separately, if any edge pieces crust Through or near to any country.
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