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How does the build-up of stress in the earth's crust result in an earthquake?

Answer 1

Stress (or pressure) along plate boundary due to friction

Tectonic plates interact (move) as a result of convection currents in the Earth's mantle.

Friction causes stress to build up when the plates move, and seismic waves are released from stored energy when stress exceeds friction.

The earthquake is felt all over the world and is felt mostly at the epicenter, where the seismic waves originate.

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Answer 2

Isaac Abel

The build-up of stress in the Earth's crust results in an earthquake when the accumulated strain exceeds the strength of the rocks, causing them to rupture along faults. This sudden release of energy generates seismic waves that propagate through the Earth's crust, leading to ground shaking and potential surface displacement.

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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.