Question

What is an earthquake?
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Answer 1

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$\implies$An earthquake is what happens when two blocks of the earth suddenly slip past one another. The surface where they slip is called the fault or fault plane. ... Scientists can't tell that an earthquake is a foreshock until the larger earthquake happens.

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Answer 2

Answer:

violent movement of the earth’s surface

Explanation:

An earthquake is what happens when two blocks of the earth suddenly slip past one another. The surface where they slip is called the fault or fault plane. ... Scientists can't tell that an earthquake is a foreshock until the larger earthquake happens.