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Earthquake Essentials

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Questions and Answers

Which of the following best defines an earthquake?

A vibratory shaking of the ground caused by a sudden disturbance of natural origin within the Earth

A series of elastic waves in the Earth's crust caused by volcanic actions

A sudden release of energy in the Earth's crust that creates seismic waves (correct)

A fracture on the Earth's crust or breaks in rocks along which there is displacement of rocks on one side relative to the other

What is the point on a fault at which the first movement or break occurs during an earthquake called?

Seismology

Faults

Hypocenter (correct)

Epicenter

What is the point on the Earth's surface directly above the hypocenter called?

Faults

Seismology

Hypocenter

Epicenter (correct)

What is seismology?

<p>The study of causes, propagation, and effects of the movements of the Earth's crust that result from an earthquake</p> Signup and view all the answers

What are faults?

<p>A fracture on the Earth's crust or breaks in rocks along which there is displacement of rocks on one side relative to the other</p> Signup and view all the answers