Seismic Waves and EQ
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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| Focus | the place inside the earth where an earthquake begins, where the energy in an earthquake is released
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| fault | large cracks in the ground caused by stress at plate boundaries
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| epicenter | the point on Earth's surface directly above the focus
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| earthquake | vibrations produced when rocks break along a fault
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| seismic wave | waves caused by an earthquake
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| surface | seismic waves that cause the most damage
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| surface | seismic waves that move the ground side to side and in circles similar to an ocean wave
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| primary | the first seismic waves to arrive
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| secondary | the second seismic waves to arrive
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| primary | seismic waves that move the ground up and down as they create a push and pull movement
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| secondary | seismic waves that move the ground side to side
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| secondary | seismic waves that CANNOT travel through a liquid (for example the outer core)
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| primary and secondary | seismic waves that start at the focus
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| surface | a combination of primary and secondary waves that have reached the surface of the earth
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| secondary | another name for S waves
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Created by:
pamwarren
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