INTRODUCING EARTHQUAKES

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INTRODUCING EARTHQUAKES

• LESSON 10

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Thinking About Earthquakes

• A. What do you think causes earthquakes?
• Plate movement the movement of molten rock
  before a volcanic eruption
• B. What do you think are some of the effects of
  an earthquake?
• Fire, landslides, loss of utilities, large sea
  waves

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• C. What risks do you think an individual might
  face during or after an earthquake?
• Loss of life, property etc
• D. How do you think scientists study
  earthquakes?
• Seismometers to record earthquake waves
• Satellites to monitor plate movement

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Causes

• How do your ideas about earthquakes (causes,
  effects, how to predict them) compare with what
  you know about storms?
• Causes of Storms atmospheric
• Causes of Earthquakes - geologic

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EFFECTS

• Effects of Storms can last days or weeks loss
  of life property
• Effects of Earthquakes occur suddenly over
  quickly loss of life and property

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PREDICTING

• Storms - Can be monitored sometimes forecast
• Earthquakes - Often happen without warning

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READ WHAT IS AN EARTHQUAKE

• PAGE 16

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• WATCH VIDEO THE DAY THE EARTH SHOOK

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Video Reflections

• A. How does the ground appear to move during an
  earthquake?
• Vertical horizontal movement
• B. What are possible causes of an earthquake?
• Plates grind past one another

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• C. What are some destructive, or negative,
  effects of earthquakes?
• Damaged buildings, broken gas water pipes, loss
  of life
• D. Why do you think more people were killed in
  Kobe, Japan, than in California?
• Buildings were not structurally able to withstand
  the earthquake in Japan.

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• Look at Figure 10.1
• Are there any constructive, or positive, effects
  of the earth moving?
• Mountains
• New landscapes

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CONCEPT MAP ON EARTHQUAKES
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Glossary Terms

• EARTHQUAKE THE SHAKING AND VIBRATING OF THE
  EARTH CAUSED BY LARGE AND SUDDEN RELEASES OF
  ENERGY.
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• CRUST THE OUTERMOST LAYER OF THE EARTH.
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• FAULT A FRACTURE IN THE EARTHS CRUST
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• MANTLE THE LAYER OF THE EARTH THAT LIES BENEATH
  THE CRUST
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• LITHOSPHERE THE OUTER PORTION OF THE EARTHS
  SURFACE MADE UP OF THE CRUST AND THE MANTLE.
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• LITHOSPHERIC PLATES THE BROKEN LARGE PIECES OF
  THE EARTHS LITHOSPHERE.
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• POTENTIAL ENERGY STORED ENERGY
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• KINETIC ENERGY THE ENERGY OF MOVEMENT
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• SEISMOLOGIST A SCIENTIST WHO STUDIES
  EARTHQUAKES
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• PRECURSOR- AN EVENT LEADING TO AN EARTHQUAKE