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Selena+esse Selena+esse Presentation Transcript

  • Earthquakes Selena Esse Mrs. Smith 4th hour April 8, 2011
  • Basic Background Information
    • What is an earthquake? a series of vibrations induced in the earth's crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating.
    • How are earthquakes measured?
    • Earthquakes are measured by seismographs.
    • What does magnitude mean?
    • The property of relative size or extent.
    • How is magnitude measured?
    • The magnitude of most earthquakes is measured on the Richter scale.
  • Damage Caused by Earthquakes
    • Landslides -Dramatic ground movement can cause the ground to rupture and bluffs to collapse.
    • Building Collapse- The August 1999 earthquake in Turkey, 17,127 people dead and 43,953 injured.
    • Tsunamis -The Sumatran earthquake of 2004,caused hundreds of thousands of deaths in a dozen countries when this undersea quake sent a huge tsunami crashing over shores around the Indian Ocean.
    • .
  • Waves
    • What are earthquake waves called?
    • Seismic Waves
    • What two types of seismic waves are there?
    • A P.Wave, and a S.Wave.
    • What two types of body waves are there?
    • A P.wave, and a S.Wave.
  • Body Waves
    • How do P waves travel?
    • They can travel through solid,liquid and gas,so it will pass completely through the body of the earth.
    • How do S waves travel?
    • They only travel through solid material,and are stopped at the liquid layer in the earths core.
    • Which move faster?
    • Primary waves move faster.
  • Elastic Rebound
    • Replace these directions with your description of elastic rebound.
    • You may also insert images or an animation to help explain.
    • In what type of plate boundary does elastic rebound occur?
  • The Tohoku Earthquake
    • This quake occurred at :
    • At 05:46:23.
    • This quake occurred
    • Friday,March 11,2011.
    • The magnitude of this quake was
    • 9.0
  • Effects on the enviroment/earth Replace these words with an appropriate image. Replace these words with an appropriate image. Replace these words with an appropriate image.
  • Effects on the People of Japan
    • Type one effect here
    • Type one effect here
    • Type one effect here
    Replace these words with an appropriate image. Replace these words with an appropriate image. Replace these words with an appropriate image.
  • Effects on the Economy of Japan
    • Type one effect here
    • Type one effect here
    • Type one effect here
    Replace these words with an appropriate image. Replace these words with an appropriate image. Replace these words with an appropriate image.
  • GPS Sensors
    • One interesting fact about this earthquake is that it moved several GPS sensors. This will require …(Type answer here)
    • How does elastic rebound explain this movement?
    • Type your answer here .
  • Tsunamis
    • What is a tsunami?
    • Tsunamis are giant waves caused by earthquakes or volcanic eruptions under the sea.
    • How do tsunami waves appear at sea?
    • How high can tsunami waves be?
    • How fast can tsunami waves move?
  • Websites Used
    • Copy and paste the URLs of the websites and articles you used.