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BMMS Science Ch 5 - Earthquakes

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Question
Answer
stress   show
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show type of stress that pulls on the crust, stretching the rock so that it becomes thinner in the middle  
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show type of stress that squeezes rock until it folds or breaks  
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shearing   show
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normal faults   show
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show the block of rock that lies above the other in a normal fault  
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footwall   show
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show has the same structure of a normal fault, the the blocks move in the opposite direction  
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strike-slip fault   show
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plateau   show
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P waves   show
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show seismic waves that vibrate from side to side as well as up and down - cannot move through liquids  
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show P waves or S waves that reach the surface - move more slowly that P or S waves, but can produce severe ground movements  
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Mercalli scale   show
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magnitude   show
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Richter scale   show
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show instrument that records and measures seismic waves  
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show rating system that estimates the total energy released by an earthquake  
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show the record of an earthquake's seismic waves produced by a seismograph  
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friction   show
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show occurs when an earthquake's violent shaking suddenly turns loose, soft soil into liquid mud  
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show earthquake that occurs after a larger earthquake in the same area  
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tsunami   show
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base-isolated building   show
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show shaking that results from the sudden movement of rock along a fault  
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focus   show
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epicenter   show
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Created by: mrpowers
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