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19 Cards in this Set
- Front
- Back
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Earthquakes
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Caused by the vibration by the breaking of rocks in the interior crust.
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Fault
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Break in the earths crust
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What r the 3 kinds of faults?
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-reverse
-normal -strike slip fault |
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Normal fault
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Is stretched crust that is moving downward rock above the fault is moving downward.
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Reverse fault
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Movement of earths crust is upward with lots of compression. Surface is forced over the rock below the faults surface.
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Strike-Slip fault
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Side to side rocks on either side r moving side to side
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Focus
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The point where energy is realesed.
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P-wave (primary waves)
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Particles in rocks to move back an forward in the same direction the wave is traveling
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S-wave (secondary wave)
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Move through the earthby causing particles in rocks to move at right angles to the direction waves travel.
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Surface waves
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Move particles in backward rolling positition and side to side swaying motion
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Epi center
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The point directly on earths surface above earths focus.
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Seismic waves
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Generated by an earthquake that travel through the earth.
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Seismograph
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Seismic waves from earthquakes and measured with this kind of instrument
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Magnitude
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Energy that is released by an earthquake.
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Liquefaction
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Soil that is mixed during an earthquake that is turned into liquid.
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Tsumanis
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Ocean waves caused by earthquakes and seismic waves
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Mantle
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Hot layer of gooey magma semi solid rock and minerals movement in the mantle leads to tectonic activity
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Core
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Sedimentary and igneaous and metaphoric rocks very hot layer made mostly of metal. The core is made up of 2 layers the outter core borders the mantle and the inner shape of the sphere shaped.
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Volcano
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Is an opening in earth that erupts ash lava gases
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