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when the earth shake
| Term | Definition |
|---|---|
| fault | a fracture in bedrock along which blocks of rock on opposite sides of the fracture move |
| intensity | a measure of damage done by an earthquake that is determined on basis of the earthquakes effect |
| magnitude | measure of the total amount of energy release at the focus of an earthquake |
| destructive | causing damage or injury |
| stress | the amount of force being applied to a rock or surface |
| Tunisian | a series of waves caused by undersea events |
| seismograph | an instrument used to detect earthquake waves |
| seismogram | the record made by sismograph |