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Earth Science 101 Practice Test: Earthquakes and Earth's Interior
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Earth Science 101 Practice Test: Earthquakes and Earth's Interior
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25 Questions

1. The elastic rebound theory for the origin of earthquakes was first proposed by ________ following the ________ earthquake.
2. ________ have the highest velocities.
3. On a typical seismogram, ________ will show the highest amplitudes.
4. The dense core of Earth is thought to consist predominantly of ________.
5. The amount of destruction caused by earthquake vibrations is affected by ________.
6. The Earth's magnetic field originates by ________.
7. Which one of the following is true regarding tsunamis?
8. The Richter magnitude of an earthquake is determined from the ________.
9. Approximately how much more energy is released in a 6.5 Richter magnitude earthquake than in one with magnitude 5.5?
10. The mechanism by which rocks store and eventually release energy in the form of an earthquake is termed ________.
11. When an earthquake occurs, energy radiates in all directions from its source. The source is also referred to as the ________.
12. The instrument that records earthquake waves is termed a ________.
13. The asthenosphere is located ________.
14. The ________ magnitude scale is a measure of the energy released. It does not directly measure the extent of building damage.
15. P waves ________.
16. The record of an earthquake obtained from a seismic instrument is a(n) ________.
17. Most of our knowledge about Earth's interior comes from ________.
18. The Mercalli Scale is a scale from ________.
19. Which one of the following best characterizes tsunamis?
20. Which one of the following statements about the crust is NOT true?
21. The average composition of the continental crust most closely approximates that of ________.
22. The position on Earth's surface directly above the earthquake source is called the ________.
23. The ________ earthquake was accompanied by extensive fire damage.
24. Overall, this type of seismic wave is the most destructive.
25. Major earthquakes are often followed by somewhat smaller events known as ________.

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