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Unformatted text preview: 4-6 km/s in crust o Compress material parallel to travel direction o Can pass through both solid and liquids S (secondary or shear) waves o Arrive at recording station after P waves but before surface waves 3-4 km/s in crust o Vibrate material perpendicular to travel direction o Can pass through solids but not liquids Time it takes seismic waves to reach a seismograph station increases with distance from earthquake focus 06/02/2008 16:59:00 06/02/2008 16:59:00...
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- Spring '08