science changing earth chapter 2. a fracture in the earth’s lithosphere fault
TRANSCRIPT
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Science
Changing EarthChapter 2
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a fracture in the Earth’s lithosphere
fault
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a force
applied by
an object
stress
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ground shaking caused by movement
along a fault
earthquake
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rock block slides up and pushes together
along a fault
rock block slides down and pulls
apart along a fault
sideways movement along a fault plane
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the vibration caused by an earthquake
seismic waves
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the underground point where rocks
begin to move
point on the Earth’s surface directly above
fault movement
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1st waves to reach a
location in an
earthquake
slower waves; move objects at
right angles
destructive waves trapped
near Earth’s surface
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the instrument
which records ground
movement
seismograph
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the power of an earthquake
mag
nitude
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a smaller earthquake that follows a more
powerful one
aftershock
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when an earthquake causes loose, wet
soil to act as a liquid
liquefaction
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a water wave caused by an earthquake
tsunami
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a section of fault having
fewer earthquakes
seismic gap