Question

What is an earthquake? How is it caused?​

Answer 1

Answer:

An earthquake is the result of a sudden release of stored energy in the Earth's crust that creates seismic waves.

Earthquakes may occur naturally or as a result of human activities. Smaller earthquakes can also be caused by volcanic activity, landslides, mine blasts, and nuclear experiments.

Explanation:

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Answer 2

❁Required Answer:

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• The vibrations That caused when the movement of lithosphere plates are called earthquake.
• When the edge overcome its friction, earthquake relese its energy and travel through earth crust.

❁Additional notes:

• when the movement starts, it is known as focus.
• The place that on the surface above is known as epicenter
• Vibraction travels as epicenter waves
• Earthquake is used mesure a machine called sesimography.