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| Term | Definition |
|---|---|
| earthqauke | the shaking that results from the movement of rock beneaths earths surface |
| fault | a break in earths crust where slabs rock slip past each other |
| stress force | compression tension shearing |
| fault type | reverse fault normal strkies slip |
| focus | point beneath earths surface where rock breaks under stress and causes an earthqauke |
| epicenter | point on earths surface directly above an earthqaukes focus |
| seismic waves | vibration that travels through earth |
| p waves | wave that compresses and expands the ground |
| s waves | wave that moves up and down and side to side |
| surface waves | forms when p waves and s waves reach earths surface |
| liquefaction | process by whuich an earthqauke violent movement suddenly turns looses soil into mud |
| tsnami | large wave caused by an earthqauke |
| aftersock | earthqake that happens after larger earthqauke in the same area |