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| a force that acts on rock to change it's shape or volume. |
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| pulls on the crust streching rock so that it becomes thinner in the middle |
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| squeezes rock until it folds and breakes |
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| stress that pushes a mass of rock into two directions |
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| tension in Earth's crust pulls rock apart |
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| a block of rock that lies above |
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| has the same structure as a normal fault |
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| the rocks on either side of the fault slippat each other side- ways |
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| a fold in rock that bends upward into an arch |
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| a fold in a rock that bends downward to form a valley |
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| is a large area of flat land elvated high above sea level |
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| is the shaking and the trembling that results from the movement of rock beneath Earth's serface |
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| is the area beneath Earths serface were rock is under stress brakes |
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| the piont on the serface directly above the focus |
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| are seismic waves that compress and exstend the ground like an accordion |
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| are seismic waves that viberate from side to side as well up and down |
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| move more slowly then S and P waves |
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| was developed to rate earthquakes according to the level of damage at any givin place |
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| is a number tha geologist assign to an earthquake based on the earthquakes size |
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| is a rateing of an earths magnitude based on the size of the earthquakes seismic waves |
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| siesmic waves are mesured |
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| a rateing system that estimate the total energy relased by an earthquake |
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| is the force that opposes the motion of one surface as it moves across anthor surface |
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| occurs when an earthquakes violemt shakeing suddently turns loose |
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| an eartquake that occurs after a larger earth in the same area |
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| water displayed by the earthquake may form a larger wave |
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