Essay on Scin 138 Lab 4:Earthquakes and Seismology

1326 Words Jun 13th, 2013 6 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)
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B. on the Earth’s surface where seismic waves are reflected downward. C. within the Earth where seismic waves are reflected downward.
Correct
D. within the Earth where the initial release of seismic energy occurs.

Answer Key: D
Question 13 of 22 4.55/ 4.55 Points
The epicenter of an earthquake is a point
Correct
A. on the Earth's surface directly above the initial release of seismic energy. B. within the Earth directly beneath the initial release of seismic energy. C. on the Earth's surface where the initial release of seismic energy occurs. D. within the Earth where the initial release of seismic energy occurs.

Answer Key: A
Question 14 of 22 4.55/ 4.55 Points
Which of the following seismic waves has the same wave form as a sound wave? A. surface wave
Correct
B. P wave C. S wave D. Love wave

Answer Key: B
Question 15 of 22 4.55/ 4.55 Points
Which of the following seismic waves is the first to arrive at a seismic station? A. surface wave
Correct
B. P wave C. S wave D. Love wave

Answer Key: B
Question 16 of 22 0.0/ 4.55 Points
Which of the following seismic waves is the last to arrive at a seismic station? A. Love wave B. P wave C. S wave
Incorrect
D. Body wave

Answer Key: A
Feedback: (A) is the correct answer. Love waves are the slowest wave

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