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When the earth shake
| Term | Definition |
|---|---|
| fault | a fracture in bedrock, along which blocks of rocks on opposite sides of the fracture move |
| 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 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 an 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 earthquake waves |
| tension | a direct result of the crust being stretched and pulled apart |
| compression | the accrual of the contractive volumetric strains in unsaturated soils during strong shaking in earthquakes |
| shearing | when the propagnition of the rupture along the fault surface occurs at speeds in excess of the seismic shear |
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