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Emily
 

Emily

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    Emily Emily Presentation Transcript

    • Earthquakes Hayley Cross and Emily Janis Mrs. Smith 5th hour April 8, 2011
    • Earthquake Background Information
      • What is an earthquake?
      • Earthquakes are the shaking that results from the movement of rock beneath Earth’s surface.
      • How are earthquakes measured?
      • Earthquakes are measured by seismographs.
      • What does magnitude mean?
      • The measurement of Earthquakes strength based on seismic waves and movement along faults.
      • How is magnitude measured?
      • Magnitude is measured on the Moment Magnitude Scale.
    • Damage Caused by Earthquakes
      • Landslides
      • Building Collapse
      • Tsunamis
      • Power Outages
    • Waves
      • What are earthquake waves called?
      • Seismic Waves
      • What two types of seismic waves are there?
      • Body Waves and Surface Waves
      • What two types of body waves are there?
      • P waves and S waves
    • Body Waves
      • How do P waves travel?
      • They compress and expand like and accordion
      • How do S waves travel?
      • They vibrate up and down as well as side to side.
      • Which move faster?
      • Primary
    • Elastic Rebound
      • A Mechanism used by geologists to explain Earthquakes and surface ruptures, seen when a deep fault’s movement breaks through to the Earth’s surface.
      • They occur at all types of plate boundaries.
    • The Tohoku Earthquake
      • This quake occurred at :
      • March 11, 2011 at 9:10 am eastern time
      • This quake occurred
      • Honshu, Japan
      • The magnitude of this quake was
      • 9.0
    • Effects on the environment/earth
      • It caused a tsunami
      • Surface ruptures
      • Landslides
      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
      • Oiling Blackouts
      • Damage of nuclear power plants
      • Losses of Hundreds of thousands of lives
      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
      • Production is expected to decrease
      • High costs of rebuilding.
      • Disruption of power and water
    • GPS Sensors
      • One interesting fact about this earthquake is that it moved several GPS sensors. This will require All of the GPS sensors to be reset
      • How does elastic rebound explain this movement?
      • It can detect an objects ability to return to its original shape.
    • Tsunamis
      • What is a tsunami?
      • A long high sea wave caused by an earthquake or other disturbances.
      • How do tsunami waves appear at sea?
      • Very small
      • How high can tsunami waves be?
      • From 30 to 300 feet
      • How fast can tsunami waves move?
      • 30 to 500 mph
    • Websites Used
      • ttp://www.diigo.com/user/richardsj/earthquake