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When the Earth shake
| Term | Definition |
|---|---|
| fault | A fracture in bedrock, along which blocks of rock on opposites sides of the fracture. |
| intensity | A measure of the damage done by an earthquake that is determined on the basis of the earthquake's effect on people, structures, and the natural environment. |
| magnitude | A measure of the total amount of energy released at the focus of an earthquake. |
| destructive | Causing damage or injury |
| stress | The amount of force being applied to a rock or surface. |
| tsunami | A series of sea waves caused by undersea events, such as a earthquake beneath the ocean floor, that rise to great heights as they near a shore. |
| seismogram | The record made by a seismograph; the paper on which data about earthquake waves is recorded. |
| seismograph | An instrument used to detect Earthquakes waves. |
| tension | A geological stress that pulls rocks apart. |
| compression | Tectonic forces squeezing rocks together. |
| shearing | The horizontal sliding motion where tectonic plates or rock blocks move past each other. |
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