Question

refers to a sudden movement or physical action on either the surface or below the surface of the earth​

Answer 1

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Earthquake - definition

An earthquake is defined as a tremor below the surface of the earth which causes shaking of the crust. These devastating tremors cannot be regarded as movements as they are caused by the stresses that break the earth's crust.

Answer 2

Answer:

Earthquake

Explanation:

earthquake is the result of a sudden release of stored energy in the Earth's crust that creates seismic waves. In its most generic sense, the word earthquake is used to describe any seismic event—whether a natural phenomenon or an event caused by humans—that generates seismic waves