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Earthquakes, Day 2

Earthquakes, Day 2

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Earthquakes, Day 2

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  1. Earthquakes, Day 2 Let’s learn some more . . .

  2. Remember this?

  3. Types of Seismic waves • What do we know about P-Waves? • What do we know about S-Waves? • What do we know about Surface Waves?

  4. Types of faults • Normal Fault • Thrust Fault • Strike-Slip Fault

  5. More vocabulary • Epicenter • Focus

  6. Practice problems • In groups of 2, get one computer. • Open the “Dynamic Planet” map from the T-Drive. • You’ll also need a calculator and some paper

  7. Math problem #1 • Suppose an earthquake occurs in Reykjavik, Iceland. • What type of fault probably caused this earthquake? • How long will it take for the P-Waves, S-Waves, and Surface Waves to be detected by a seismograph at KU?

  8. Math problem #2 • Suppose an earthquake occurs in Port au Prince, Haiti. • What type of fault probably caused this earthquake? • What will be the gap between the arrival of the P-Waves and S-Waves on a seismograph in Lawrence, Ks.? (What’s the difference in the arrival times?)

  9. Math problem #3 • Suppose an earthquake is recorded on a seismograph at KU. • The time gap between the arrival of the P-Waves and S-Waves is 45 seconds. • How far away was the epicenter of the earthquake? • Give your answer in miles. This one is very difficult:{)