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