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Definition
| a force that acts on rock to change its shape or volume |
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| the stress force that pulls on the crust and thins rock in the middle |
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| the stress force that squeezes rock until it folds or breaks |
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| stress that pushed a mass of rock in two opposite directions |
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| where rock is pulled apart by tension in Earth's crust |
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| has the same structure as a normal fault, but the blocks move in the reverse direction |
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| the rocks on either side of the fault slip past each other sideways, with little up or down motion |
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| a fold in rock that bends upwards into an arch |
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Definition
| a fold in rock that bends downward to form a V shape |
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Definition
| the collision of two plates that causes compression and folding of the crust over a wide area |
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| a large area of flat land elevated high above sea level |
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| the shaking and trembling that results from movement of rock beneath Earth's surface |
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Definition
| the area beneath the Earth's surface where rock that was under stress begins to break or move |
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| the point on the surface directly above the focus |
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Definition
| seismic waves that compress and expand the ground like an accordion |
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Definition
| seismic waves that can vibrate from side to side or up and down |
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Definition
| move more slowly that P and S waves, but they can produce severe ground movements |
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Definition
| an instrument that records and measures an earthquake's seismic waves |
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| rates the amount of shaking from an earthquake |
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| a single number that geologists assign to an earthquake based on the earthquake's size |
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Definition
| rates the total energy an earthquake releases. |
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Definition
the record of an earthquake
s seismic waves produced by a seismograph |
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