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What is it when a rock snaps back to its original stress free form after an earthquake?

This is known as elastic rebound. Elastic rebound occurs when the strain energy stored in the rocks is released during an earthquake, causing the rocks to snap back to their original stress-free form.

Did you know?

Did you know that when a rock snaps back to its original stress-free form after an earthquake, it undergoes a phenomenon known as elastic rebound? This fascinating process occurs due to the release of stored energy in the rock during an earthquake. The intense pressure and strain caused by tectonic forces temporarily deform the rock, storing potential energy. However, once the stress exceeds the rock's strength, it abruptly returns to its original shape, releasing the stored energy and causing vibrations known as seismic waves. Elastic rebound is a crucial concept in understanding the mechanics and aftermath of earthquakes, helping scientists study the Earth's dynamic activity and devise ways to mitigate their impact on human lives and infrastructure.