Question

what is an earthquake​

Answer 1

Answer:

An earthquake is an intense shaking of earth's surface. The shaking is caused by movements in earth's outermost layer.

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Answer 2

Answer:

Earthquake is a term used to describe both sudden slip on a fault, and the resulting ground shaking and radiated seismic energy caused by the slip, or by volcanic or magmatic activity, or other sudden stress changes in the earth.