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Stress And Energy Waves
Stress And Energy Waves
Stress And Energy Waves
Stress And Energy Waves
Stress And Energy Waves
Stress And Energy Waves
Stress And Energy Waves
Stress And Energy Waves
Stress And Energy Waves
Stress And Energy Waves
Stress And Energy Waves
Stress And Energy Waves
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Stress And Energy Waves

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  • 1. Stress and Energy Waves Movement during an Earthquake
  • 2. October 17, 1989 at 5:04 p.m
  • 3. Stress <ul><li>Stress: Energy stored in the Earth’s crust </li></ul><ul><li>Stress can build up at plate boundaries. </li></ul><ul><li>Potential Energy </li></ul>
  • 4. Folding <ul><li>Too much stress can cause the rocks to bend or Fold . </li></ul><ul><li>This can form Mountains . </li></ul><ul><li>The Appalachian mountains are folded mountains. </li></ul>
  • 5. The Appalachian Mountains (Tennessee)
  • 6. Faulting <ul><li>When there is too much stress , the rocks in the crust may break . </li></ul><ul><li>This can cause earthquakes . </li></ul>
  • 7. Fault Lines
  • 8. Seismic Waves <ul><li>Waves of energy that move through the Earth during an Earthquake. </li></ul><ul><li>There are three types: </li></ul><ul><ul><li>Primary waves </li></ul></ul><ul><ul><li>Secondary waves </li></ul></ul><ul><ul><li>Love-Rayleigh waves </li></ul></ul>
  • 9. Primary (P) waves <ul><li>Body waves move through the interior of the Earth. </li></ul><ul><li>They are the fastest seismic wave, therefore will always arrive first . </li></ul><ul><li>Move through solid, liquid and gas. </li></ul><ul><li>They are compression waves, they move particles forward and backward . </li></ul>
  • 10. S waves <ul><li>Also body waves. </li></ul><ul><li>Travel more slowly and arrive second . </li></ul><ul><li>Can only move through solids . </li></ul><ul><li>Also called shear waves, because they move particles side to side . </li></ul><ul><li>AKA transverse waves. </li></ul>
  • 11. Love-Rayleigh Waves <ul><li>Surface waves. </li></ul><ul><li>Solid rock only. </li></ul><ul><li>Move in a rolling motion. </li></ul><ul><li>Cause ripples on the surface. </li></ul>
  • 12. Seismology and Seismic Waves

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