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Ivana chapter 6 (:
Earthquakes
| Question | Answer |
|---|---|
| Faults | surface along which rocks move when they pass thier elastic limit and break |
| vibrations produced when rocks break along a fault | Earthquake |
| Break in rock caused by tension forces | normal fault |
| Break in rock caused by compressive | Reverse fault |
| Break in rock caused by shear forced | strike-slip-fault |
| Wave generrated by an earthquake | Seismic wave |
| surface where energy is realeased in the form of sesimic wave | focus |
| Seismic wave that moves rock particles back earth in the same direction that the wave travels | primary wave |
| seiemic wave that moves rock particles at the right angle the the direction of the wave | secondary wave |
| a large section of earths oceanic or continental crust and riggid upper mantle that moves around on the asthensphere | plate |
| Rhythmic movement that carries engery through matter and space | wave |
| move rock particles up-and-down in a backward rolling motion and side-to-side in a swaying motion | surface waves |
| paint on earths suface directly above an earthquake's focus | epicenter |
| instrument used to regirsster earthquakes waves anf record the time that each arrived | seismograph |
| the highest point of a wave | crest |
| measure of the enerhy released during an earthquake. | Magitude |
| occurs when wet soil acts more like a liquid during an earth | Liquefaction |
| sismic sea wave that begains over an earthquake focus and can be ighly destrutive hen it crashes on shore | tsunami |