earthquakes123
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Earthquake | Vibrations in the earth caused by the sudden releases of energy
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| Crust | The earth's outer layer; the coolest and least dense layer of the earth
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| Fault | A fracture in bedrock, along which blocks of rocks on opposite sides of the fracture move
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| Mantle | The layer of the earth beneath the crust
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| Lithosphere | The cool, solid outer shell of the earth
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| Lithospheric Plates | Large peices of the lithosphere that are always moving
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| Seismologist | A scientist who studies eartgquakes
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| P-Wave | Compress and expand the ground like an accordion
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| S-Wave | Vibrate from side to side
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| Surface Wave | Move more slowly than P Waves and S Waves
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| Seismic Wave | Carry the energy of an earthquake away from the focus, through the Earth's interrior, across the surface
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| Focus | The point at which a rock under stress breaks and triggers an earthquake
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| Epicenter | The point on the surface directly above the focus
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| Seismograph | Is an instrument that records and measures seismic waves
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| Magnitude | Is a number geologist assign to an earthquake based on the earthquake's strength
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| Ritcher Scale | Is a rating of an earthquake's magnitude based on size of earthquake's seismic waves
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| Mercalli Scale | Rate an earthquakes according to the level of damage at a given place
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| Moment-Magnitude Scale | A rating system that estimates the total energy realeased by an earthquake
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| Liquifaction | Occurs when an earthquake's violent shaking suddenly turns loose, soft soil into liquid mud
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| Aftershock | An earthquake that occurs after a large earthquake in the same area
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| Tsunami | The water displaced by a strong earthquake on the ocean floor forms a large wave
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Created by:
jjperry
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