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Download Earthquakes produce three types of seismic waves.
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Seismic Waves Earthquakes produce three types of seismic waves. Primary Waves In primary waves, the particles of materials are slightly pushed together and pulled apart in the direction of the waves’ travel. Secondary Waves particle motion In secondary waves, the particles of materials move at a right angle to the direction of the waves’ travel. wave direction primary wave particle motion wave direction secondary wave Surface Waves Surface waves are seismic waves trapped near Earth’s surface. As depth within Earth increases, motion due to surface waves decreases, then stops. surface wave particle motion wave direction How do particles move as primary waves and secondary waves pass through materials? Chapter 7: Earthquakes 231
