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Brendan,rocco+philly
Brendan,rocco+philly
Brendan,rocco+philly
Brendan,rocco+philly
Brendan,rocco+philly
Brendan,rocco+philly
Brendan,rocco+philly
Brendan,rocco+philly
Brendan,rocco+philly
Brendan,rocco+philly
Brendan,rocco+philly
Brendan,rocco+philly
Brendan,rocco+philly
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Brendan,rocco+philly

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  • 1. Earthquakes and Seismic Waves Brendan Gubbini, Rocco Stralle, and Michael Phillips Mrs. Smith 4th April 8, 2011
  • 2. Basic Background Information <ul><li>What is an earthquake? </li></ul><ul><li>Series of Vibration in the earth’s crust. </li></ul><ul><li>How are earthquakes measured? </li></ul><ul><li>They are measured by a Richter scale. </li></ul><ul><li>What does magnitude mean? </li></ul><ul><li>magnitude measures the energy released at the source of the earthquake. </li></ul><ul><li>How is magnitude measured? </li></ul><ul><li>They are measured by a seismograph. </li></ul>
  • 3. Damage caused by Earthquake <ul><li>Landslides </li></ul><ul><li>Buildings collapse </li></ul><ul><li>Power Lines </li></ul><ul><li>Tsunamis </li></ul>
  • 4. Waves <ul><li>What are earthquake waves called? </li></ul><ul><li>Seismic waves. </li></ul><ul><li>What two types of seismic waves are there? </li></ul><ul><li>Body and Surface Waves </li></ul><ul><li>What two types of body waves are there? </li></ul><ul><li>P Waves and S Waves </li></ul>
  • 5. Body Waves <ul><li>How do P waves travel? </li></ul><ul><li>Solid, Liquid, and Gas, and through the Body Of Earth </li></ul><ul><li>How do S waves travel? </li></ul><ul><li>Only through Solid </li></ul><ul><li>Which move faster? </li></ul><ul><li>P Waves </li></ul>
  • 6. Elastic Rebound <ul><li>A mechanism used by Geologists to explain Earthquakes and Surface ruptures, seen when deep faults break through Earth’s surface. </li></ul>
  • 7. The Tohoku Earthquake <ul><li>This quake occurred at : </li></ul><ul><li>March 11, 2o11 </li></ul><ul><li>This quake occurred </li></ul><ul><li>Towards Northeast part of Honshu, Japan </li></ul><ul><li>The magnitude of this quake was </li></ul><ul><li>9.0 </li></ul>
  • 8. Effects on the environment/earth <ul><li>Pacific Plates moved 20m westward </li></ul><ul><li>Shifted on Earth’s axis about 6.5 inches </li></ul><ul><li>Somehow caused the Planet to rotate just a little bit faster, shorting the day about 1.8 millions of a second </li></ul>
  • 9. Effects on the People of Japan <ul><li>Thousands were dead </li></ul><ul><li>Thousand houses were destroyed </li></ul><ul><li>Lack of power and water </li></ul>
  • 10. Effects on the Economy of Japan <ul><li>Production is slowly declining </li></ul><ul><li>Thousands of houses were destroyed </li></ul><ul><li>Factories are in un-workable conditions </li></ul>
  • 11. GPS Sensors <ul><li>One interesting fact about this earthquake is that it moved several GPS sensors. This will require … resetting GPS because of japan </li></ul><ul><li>How does elastic rebound explain this movement? Ruptures result to strong ground shaking. </li></ul>
  • 12. Tsunamis <ul><li>What is a tsunami? </li></ul><ul><li>A series of waves caused by an earthquake or other disturbances. </li></ul><ul><li>How do tsunami waves appear at sea? </li></ul><ul><li>When undersea earthquakes disrupt water surfaces </li></ul><ul><li>How high can tsunami waves be? </li></ul><ul><li>Between 30 to 50 feet they can reach up to 100-300 feet </li></ul><ul><li>How fast can tsunami waves move? </li></ul><ul><li>Anywhere from 3omph to about 500 mph </li></ul>
  • 13. Websites Used <ul><li>http://www.diigo.com/user/richardsj/earthquake </li></ul>

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