CAN WE USE THE INTERNET EFFECTIVELY TO LEARN ABOUT EARTHQUAKES

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CAN WE USE THE INTERNET EFFECTIVELY TO LEARN
ABOUT EARTHQUAKES?
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NEW YORK CITY QUAKE

• Epicenter
• near the corner of 6th Avenue and West 50
  Street
• Magnitude
• M2.6 on the Richter scale

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What is an Earthquake?

• An Earthquake is a series of shock waves
  generated from the brittle failure of rocks
  within the earth due to a build up of stress
• The Epicenter is the point on the earth' surface
  directly above this failure

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Use The Internet

• Go to this address
• http//volweb.utk.edu/Schools/sullivan/colonial/eq
  uakes.htm
• Click on TASK 2

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What did our ancestors believe?

• Giant animals movements created earthquakes
• Aristotle winds within the earth shook the
  surface.

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What an epicenter looks like

• Go back
• Click on Task 7
• Where is the Epicenter?
• What 3 cities are affected?

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Project Find the Epicenter

• Go Back
• Click on Task 11
• We can find the epicenter by looking at
  Seismic waves
• Seismic waves waves that travel through the
  earth
• P through solids liquids and gasses
• Sthrough only solids

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VIRTUAL EARTHQUAKE

• Go down and click on Japan Region and Submit
  Choice
• We need to measure the time intervals between P
  and S waves
• CLICK on VIEW SEISMOGRAMS

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VIRTUAL EARTHQUAKE

• What are the time intervals for each place?
• Pusan 56, Tokyo 44, Akita 70
• CLICK on CONVERT S-P INTERVALS

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VIRTUAL EARTHQUAKE

• Go down to the graph.
• Go across on time until you hit the line
• Go down for the distance
• Click on Find Epicenter

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VIRTUAL EARTHQUAKE

• How did we do?
• Click on VIEW TRUE EPICENTER
• Where is the Epicenter?

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RICHTER SCALE

• The values we calculated can be applied to the
  Richter Scale
• What is our Magnitude?
• 6.7
• our calculations are only .1 degrees off.
  The true value is 6.8

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What did we learn?

• Did you learn something new?
• Did you find this to be an effective way to learn
  about Earthquakes?

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Homework

• If I was to assign you Homework I would ask you
  to find the Epicenter of one other location using
  Virtual Earthquake