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27 Cards in this Set
- Front
- Back
Fault and force at a divergent boundary |
Normal fault Tensión force |
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Fault and force at a transform boundary |
Strike - slip fault Shearing force |
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Locating the earthquake epicenter by drawing three circles and finding where the tree intercept is called |
Triangulation |
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Scientist have been able to to use earthquakes waves to find out what about the Earth |
The 4 different layers of the earth |
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Vibrations caused by energy released when a break occurs at a fault is... |
An Earthquake |
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Earthquake waves that arrive at the surface first |
Primary |
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Earthquakes waves that cause the ground to shake and makes rocks roll like an ocean wave |
Surface |
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He movement of rock particles during the passage of s waves |
Right angles Up and down |
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The movement of rocks during a p wave |
Back and forth |
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The sequence of waves during an earthquake from first to last |
P waves S waves Surface waves |
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Force that causes plates to move sideways past eachother |
Shearing |
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Type of stress that produces reverse faults |
Commpressional |
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What type of fault is created by tension forces |
Normal |
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A fault where rocks slip past each other sideways |
Strike - slip fault |
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Type of force at a strike -slip fault |
Shearing |
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Force that pushes rock in opposite directions |
Shearing |
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Changes in the earths interior have been detected due to |
Seismographs |
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The forces that squeezes rock together |
Commpressional |
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When the force on rock is great enough they break producing vibrations called |
Earthuakes |
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Once the elastic limit is passed they break and move along sufaces called |
Faults |
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Measuring the time between the arrival of p waves and S waves determines the distance between the epicenter and the |
Seismographs station |
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Point a where energy is reals ed during the earthquake is called the |
Focus point |
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Point b is called the earthquake |
Epicenter |
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What type of fault is illustrated in this día gram |
Normal |
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A layer of hot rock |
Mantle |
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When arrows at plate boundaries are pointed towards eachother it is a |
Convergent boundary |
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When arrows are pointed away from each other at plate boundaries it is a |
Divergent boundary |