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chapter 12 Sci. test
| Question | Answer |
|---|---|
| Elastic Rebound | The sudden return of elastically deformed rock to its un-deformed shape. |
| Focus | The location within the Earth along a fault at which the first motion of an earthquake occurs. |
| Epicenter | The point on Earth's surface directly above an earthquake's starting point, or focus. |
| Seismic Waves | Energy released in the form of vibrations as rocks along a fault ship into place. |
| Fault Zone | A region of numerous, closely spaced faults. |
| How does stress build up along a fault and get released? | Although the rocks may be under stress, friction prevents them from moving past each other, Parts of a fault remain locked until the stress becomes so great that the rocks suddenly slip past each other. This slipping causes trembling and vibrations. |