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What causes an earthquake?

Answer 1

The most common cause of earthquakes is Faulting.

Faulting is the process by which portions of the Earth's crust are pushed together or pulled apart. Rocks fracture and slide past one another, releasing energy in the process. As the rocks move, adjacent rocks move with them, and this movement continues until the energy is expended.

A fault is a crack in the crust of Earth.

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Answer 2

Nova Anderson

Earthquakes are caused by the sudden release of energy in the Earth's crust, resulting in seismic waves. This release of energy is typically caused by the movement of tectonic plates along faults, volcanic activity, or human-induced activities such as mining or reservoir-induced seismicity.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.