Discuss P- waves and S-waves.
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S waves. S waves, or Secondary waves, are the second waves to arrive during an earthquake. They are much slower than P waves and can travel only through solids. It is after studying the trajectory of S waves through the layers of earth, scientists were able to conclude that the earth's outer core is liquid.
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These waves are of a higher frequency than surface waves. The first kind of body wave is the P wave or primarywave. This is the fastest kind of seismic wave, and, consequently, the first to 'arrive' at a seismic station. TheP wave can move through solid rock and fluids, like water or the liquid layers of the earth.




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These waves are of a higher frequency than surface waves. The first kind of body wave is the P wave or primarywave. This is the fastest kind of seismic wave, and, consequently, the first to 'arrive' at a seismic station. TheP wave can move through solid rock and fluids, like water or the liquid layers of the earth.
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