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27 Cards in this Set
- Front
- Back
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Fault and force at a divergent boundary |
Normal, tension |
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Fault and force at a transform boundary |
Strike-slip, shearing |
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Locating the earthquake epicenter by drawing three circles and finding where the three intersect is called |
Triangulation |
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Scientists have been able to use earthquake waves to find out what about the earth |
Composition and depth of each layer |
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Vibrations caused by energy released when a break occurs at a fault is |
Seismic waves |
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Earthquake waves that arrive at the surface first |
Primary |
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Earthquake waves that cause the ground to shake and make a rocks roll like an ocean wave |
Surface |
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The movement of rock particles during the passage of s waves |
Right angles |
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The movement of particles during the passage of p waves |
Back and forth |
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The sequence of waves during an earthquake from first to last |
Primary, secondary, surface |
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Force that causes plates to move sideways past each other |
Shearing |
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The type of stress that produces reverse faults |
Compression |
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What type of fault is created by tensional forces |
Normal |
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A fault where rocks slip past each other sideways |
Strike-slip |
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Type of force at a Strike-slip fault |
Shear |
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Force that pushes rock in opposite directions |
Tension |
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Changes in Earth's interior have been detected due to |
Seismic waves |
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The force that squeezes rock together |
Compression |
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When the force on rocks is great enough, they break, producing vibrations called |
Earthquakes |
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Once the elastic limit of rocks is passed, they break and move along surfaces called |
Faults |
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Measuring the time between the arrival of p and s waves determines the distance between the epicenter and the |
Seismograph |
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Point a where energy is initially released during the earthquake is called the |
Focus |
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Right above the focus (point b) is what in an earthquake |
Epicenter |
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What type of fault is when the hanging wall is going down |
Normal |
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A layer of hot rock |
Mantle |
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When arrows at plate boundaries are pointed towards each other it is a |
Convergent |
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When arrows are pointed away from each other at plate boundaries it is a |
Divergent |
