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Real-Time Seismic Wave Demonstrations for In-Class Learning

Explore seismic wave demonstrations using laptops for interactive learning. Visit the provided links for resources and lesson plans. Understand the components and measurements with engaging activities for students. Dive into complex aspects like wave motion and attenuation.

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Real-Time Seismic Wave Demonstrations for In-Class Learning

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  1. Real-time, in-class seismic wave demonstrations using laptops Michael Wysession Washington University St. Louis, MO

  2. Real-time, in-class seismic wave demonstrations using laptops For Mac laptops, go to: http://www.suitable.com/tools/seismac.html For PC laptops and desktops, go to: http://qcn.stanford.edu/ For additional links, including seismometer lesson plans: http://www.iris.edu/hq/programs/education_and_outreachhttp://earthquake.usgs.gov/

  3. The Stanford Quake-Catcher Network (QCN):

  4. The QCN seismometer screen:

  5. Step 1: Identify the 3 components

  6. Step 1: Identify the 3 components

  7. Step 1: Identify the 3 components UP - DOWN LEFT - RIGHT FRONT - BACK

  8. Step 2: Figure Out What It Is Measuring

  9. Step 2: Figure Out What It Is Measuring

  10. Step 2: Figure Out What It Is Measuring • Motions are measured as accelerations, with units of “g” • It is an Accelerometer (like with car airbags) • Applications: Airplanes, Rollercoasters

  11. Step 2: Ask What Students Expect to Happen When the Laptop is Pushed

  12. Step 2: Ask What Students Expect to Happen When the Laptop is Pushed Probably get an answer something like this:

  13. That’s not what they expected!!

  14. Step 2: Ask What Students Expect to Happen When the Laptop is Pushed Probably get an answer something like this: Displacement

  15. Step 2: Ask What Students Expect to Happen When the Laptop is Pushed Probably get an answer something like this: Displacement How about Velocity?

  16. Step 2: Ask What Students Expect to Happen When the Laptop is Pushed Probably get an answer something like this: Displacement How about Velocity?

  17. Step 2: Ask What Students Expect to Happen When the Laptop is Pushed Probably get an answer something like this: Displacement How about Velocity? How about Acceleration?

  18. Step 2: Ask What Students Expect to Happen When the Laptop is Pushed Probably get an answer something like this: Displacement How about Velocity? How about Acceleration?

  19. Step 2: Ask What Students Expect to Happen When the Laptop is Pushed Probably get an answer something like this: Displacement How about Velocity? How about Acceleration? Yes, It really is Acceleration!

  20. That’s not what they expected!!

  21. Step 3: Have students try to replicate an actual 3-Component seismogram!

  22. Sample of Real 3-Component Seismogram:

  23. Sample 3-Component Seismac Seismogram:

  24. Opportunity to talk about some more complex aspects, like surface wave retrograde motion and dispersion, and mode splitting

  25. Step 4: Seismic Attenuation with Distance

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