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Seismic Waves Aaron Kafkakis  Ryan Harris Mrs. Smith Hour: 4 April 8, 2011
Basic Background Information <ul><li>What is an earthquake? </li></ul><ul><li>An Earthquake is what happens when two block...
Damage Caused by Earthquakes <ul><li>Buildings suddenly collapse </li></ul><ul><li>Tsunamis begin to occur </li></ul><ul><...
Waves <ul><li>What are earthquake waves called? </li></ul><ul><li>Seismic Waves </li></ul><ul><li>What two types of seismi...
Body Waves <ul><li>How do P waves travel? </li></ul><ul><li>They push and they pull </li></ul><ul><li>How do S waves trave...
Elastic Rebound <ul><li>A mechanism used by Geolgists to explain Earthquakes and suface ruptures. </li></ul><ul><li>The El...
The Tohoku Earthquake <ul><li>This quake occurred at : </li></ul><ul><li>5:30 PM </li></ul><ul><li>This quake occurred   <...
Effects on the environment/earth <ul><li>Nuclear Wastes from Power Plants escape into the evironment </li></ul><ul><li>Man...
Effects on the People of Japan <ul><li>People do not have power from destroyed power plants. </li></ul><ul><li>Tsunamis fl...
Effects on the Economy of Japan <ul><li>Many offices shut down and people lost jobs. </li></ul><ul><li>Food and water beco...
GPS Sensors <ul><li>One interesting fact about this earthquake is that it moved several GPS sensors. This will require all...
Tsunamis <ul><li>What is a tsunami? </li></ul><ul><li>A giant wave usually caused by an earthquake. </li></ul><ul><li>How ...
Websites Used <ul><li>http://www.diigo.com/user/richardsj/earthquake </li></ul><ul><li>http://www.google.com/ </li></ul>
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  1. 1. Seismic Waves Aaron Kafkakis Ryan Harris Mrs. Smith Hour: 4 April 8, 2011
  2. 2. Basic Background Information <ul><li>What is an earthquake? </li></ul><ul><li>An Earthquake is what happens when two blocks of Earth suddenly slip or crack past eachother. </li></ul><ul><li>How are earthquakes measured? </li></ul><ul><li>Earthquakes are measured in Seismic Waves measured by Seismographs. </li></ul><ul><li>What does magnitude mean? </li></ul><ul><li>The size of an Earthquake is called its Magnitude </li></ul><ul><li>How is magnitude measured? </li></ul><ul><li>Magnitude is measured by the size of their Seismic Waves. </li></ul>
  3. 3. Damage Caused by Earthquakes <ul><li>Buildings suddenly collapse </li></ul><ul><li>Tsunamis begin to occur </li></ul><ul><li>Buildings shake and shutter </li></ul>
  4. 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>Primary and Secondary Waves </li></ul><ul><li>What two types of body waves are there? </li></ul><ul><li>Love and Rayleigh Waves </li></ul>
  5. 5. Body Waves <ul><li>How do P waves travel? </li></ul><ul><li>They push and they pull </li></ul><ul><li>How do S waves travel? </li></ul><ul><li>They travel side to side, and up and down. </li></ul><ul><li>Which move faster? </li></ul><ul><li>P-waves move faster. </li></ul>
  6. 6. Elastic Rebound <ul><li>A mechanism used by Geolgists to explain Earthquakes and suface ruptures. </li></ul><ul><li>The Elastic Rebound occurs in Divergent Boundaries </li></ul>
  7. 7. The Tohoku Earthquake <ul><li>This quake occurred at : </li></ul><ul><li>5:30 PM </li></ul><ul><li>This quake occurred </li></ul><ul><li>In Honshu, Japan. </li></ul><ul><li>The magnitude of this quake was </li></ul><ul><li>9.0 </li></ul>
  8. 8. Effects on the environment/earth <ul><li>Nuclear Wastes from Power Plants escape into the evironment </li></ul><ul><li>Many cities and Humans are heavily damaged </li></ul><ul><li>Large cracks and sinkholes . </li></ul>
  9. 9. Effects on the People of Japan <ul><li>People do not have power from destroyed power plants. </li></ul><ul><li>Tsunamis flood cities in Japan. </li></ul><ul><li>Houses and buildings are toppled over. </li></ul>
  10. 10. Effects on the Economy of Japan <ul><li>Many offices shut down and people lost jobs. </li></ul><ul><li>Food and water become scarce and polluted. </li></ul><ul><li>Fires burn down buildings and kill hundreds. </li></ul>
  11. 11. GPS Sensors <ul><li>One interesting fact about this earthquake is that it moved several GPS sensors. This will require all of the GPS sensors to be rearranged. </li></ul><ul><li>How does elastic rebound explain this movement? </li></ul><ul><li>Because the boundaries at the Elastic Rebound point shifted, moving Japan. </li></ul>
  12. 12. Tsunamis <ul><li>What is a tsunami? </li></ul><ul><li>A giant wave usually caused by an earthquake. </li></ul><ul><li>How do tsunami waves appear at sea? </li></ul><ul><li>After an earthquake hits, the waves cause the water to rise up and move. </li></ul><ul><li>How high can tsunami waves be? </li></ul><ul><li>About 50 to 250 feet high. </li></ul><ul><li>How fast can tsunami waves move? </li></ul><ul><li>One hundred MPH in deep ocean water. </li></ul>
  13. 13. Websites Used <ul><li>http://www.diigo.com/user/richardsj/earthquake </li></ul><ul><li>http://www.google.com/ </li></ul>

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