Scin 138 Lab 4:Earthquakes and Seismology

1340 WordsJun 2, 20136 Pages
Part 1 of 1 - 40.85/ 100.00001 Points Question 1 of 22 4.55/ 4.55 Points Record your answer from Lab Exercise #1, Step 1, Question 1.What time in hours:minutes:seconds GMT did the P waves arrive? A. 01:48:00 Correct B. 01:49:00 C. 01:50:00 D. 01:51:00 Answer Key: B Question 2 of 22 0.0/ 4.55 Points Record your answer from Lab Exercise #1, Step 1, Question 2. What time in hours:minutes:seconds GMT did the S waves arrive? A. 01:51:30 B. 01:52:00 C. 01:53:10 Incorrect D. 01:54:20 Answer Key: C Feedback: (C) is the correct answer. 01:53:10. Question 3 of 22 0.0/ 4.55 Points Record your answer from Lab Exercise #1, Step 1, Question 3. What is the time lag (S-P)…show more content…
Incorrect A. Love Waves B. P wave C. S wave D. Rayleigh wave E. Both choices A and C Answer Key: E Feedback: Figure 4.2, p. 82 Question 18 of 22 4.55/ 4.55 Points The two kinds of body waves are A. surface waves and P waves. B. Love waves and P waves. Correct C. P waves and S waves. D. surface waves and S waves. E. Love waves and S waves. Answer Key: C Question 19 of 22 4.55/ 4.55 Points The following seismic waves are used to locate earthquake epicenters: A. surface waves and P waves. B. Rayleigh waves and P waves. Correct C. P waves and S waves. D. surface waves and S waves. E. L waves and S waves. Answer Key: C Question 20 of 22 0.0/ 4.55 Points Which of the following statements is correct? A. P-wave amplitude is larger the S-wave amplitude. Incorrect B. S-wave amplitude is larger than P-wave amplitude. C. P-wave amplitude and S-wave amplitude are about the same. D. P-wave amplitude is larger than all the other seismic waves recorded on a seismogram. Answer Key: C Feedback: (C) is the correct answer. P and S waves amplitudes are about the same. Question 21 of 22 4.55/ 4.55 Points Determining the distance along the Earth's surface from a seismic station to the epicenter of an earthquake is based on the difference in arrival times between Correct A. the first P wave and the

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