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when the earth shkes
| Term | Definition |
|---|---|
| fault | a fracture in bedrock along of which blocks of rocks on opposite sides of the fracture move |
| intensity | a measure of the damage done by a earthquake that is determined on the basis of the earthquakes affect on people,struvture,and the natural ennviroment |
| magnitude | a measure of the total amount of energy released 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 rises it great heights near shore |
| sesimogram | the record made by a seismograph the paper on which the data about earthquake waves is recorded |
| sesimograph | an instrument used to detect a earthquake waves |
| tension | the state of being stretched tight |
| compression | the reduce in volume causing an increase in pressure of fuel mixture in an internal combustion engine fore ignation |
| shearing | break off or cause to break off owing to structural strain |