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7 Cards in this Set
- Front
- Back
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What is a P wave?
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Primary wave, result from alternating compression and expansion of material. Also known as a compressional wave. It has the highest velocity of a seismic wave (4mi/s). It can travel through solids, liquids, and gases. P waves move in the same direction the wave is traveling.
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What is a Kimberlite?
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A hole in the ground, goes from surface to the bottom of the crust (Carrot Shape). Contains rocks from every layer.
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What causes earthquakes?
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The Elastic Rebound Theory
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What is an S wave?
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Also known as secondary waves or shear waves. Travel through the Earth and distort material. S Waves have a greater amplitude (more shaking) than P waves. S waves move at 2 mi/s and can only pass through solids. These waves cause the most damage during earthquakes. S waves move perpendicular to the direction the wave is traveling.
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What do the Richter scale and the Mercelli scale each measure?
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Richter = measures (1-10) the amplitude (amount of energy released) during an earthquake.
Mercelli = measures (I-XII) the amount of destruction. |
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What is the interior of the Earth like? (which layers are liquid and solid)
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Inner Core - Solid
Outer Core- Liquid Mesosphere- Solid Asthenosphere- Plastic (Liquid) Lithosphere- Rigid (Solid) |
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Which wave has a relatively faster speed?
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P waves
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