Earthquakes & Earth Layers 4/20 - 5/15

• 1. What is it?

  2. What is the main kind of stress occurring between the plates?

  3. What kind of fault occurs?

  4. What are earthquakes like at these boundaries?

4/25 - Make and fill-in the following table:

4/27 - From video clip at iris.edu:

• 1. Why do seismometer stations each have 3 types of seismometer?

  2. What does each type measure?

  3. Which type do P and S waves both show up clearly (so we can determine lag time)?

4/28 - From video clip at iris.edu:

• 1. What does a CT scan (ie. CAT scan) show?

  2. How does it work?

  3. How can we use seismic waves from different earthquakes in the same way?

5/1 - From video clip at iris.edu:

• 1. Why might P and S waves suddenly change direction each time they move into a new layer?

  2. Why do S-waves stop at the outer core?

5/2 - From video clip at iris.edu:

• 1. What are shadow zones?

  2. Why do they exist?

  3. How is the P-wave shadow zone different than the S-wave shadow zone?

5/3 - Answer the following questions for Divergent Boundary and Transform Boundary. (DE pg. 243)

• 1. What is it?

  2. What is the main kind of stress occurring between the plates?

  3. What kind of fault occurs?

  4. What are earthquakes like at these boundaries?