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8th grade earth sci.
part 2
| Term | Definition |
|---|---|
| seismic waves that compress and expand the ground | P waves |
| a scale that rates earthquakes based on the total energy they release | Moment magnitude scale |
| any wave that moves perpendicular with respect to the medium through which it moves | transverse waves |
| a scale that rates earthquakes descriptivly | Mercalli scale |
| the shaking and trembling that results from the movement of rock beneath earth's surface. | earthquake |
| area beneath Earth's surface where an earthquake begins | focus |
| any wave that compresses and expands the medium through which it moves | longitudinal waves |
| seismic waves that result in the chaotic, rolling motion on the surface | surface waves |