Question

what is earthquake ?

Answer 1

• Earthquake, any sudden shaking of the ground caused by the passage of seismic waves through Earth's rocks.
• Seismic waves are produced when some form of energy stored in Earth's crust is suddenly released,
• usually when masses of rock straining against one another suddenly fracture and “slip.”

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Answer 2

Answer:

An earthquake is caused by a sudden slip on a fault. ... When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel. In California there are two plates - the Pacific Plate and the North American Plate.

Explanation:

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