Question

Give reasons why an earthquake occurs. Answer in brief

Answer 1

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here's your answer

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Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake. When two blocks of rock or two plates are rubbing against each other, they stick a little. When the rocks break, the earthquake occurs.

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Answer 2

Earthquake is the naturally caused shaking of the ground of large geographical area.

The earthquake is caused by the displacement of the tectonic plates.

The earth's crust is floating on several internal tectonic plates when these plates collapse with each other ,a high amount of physical energy is released which mainly causes the earthquake.