Handout 3 (2-3) green Recording Earthquakes
Standard 2 Objective 3 a, b, d, and e 1. A seismograph is an
instrument that records vibrations
A. in the ground. 2. Scientists who study earthquakes are
interested in the amount of
C. energy released by an earthquake. Matching #s 3-7 3. magnitude
a.
the amount of damage caused by an earthquake 4. Richter scale b.
the measure of earthquake strength based on the size of the area of
the fault that moves, the average distance that the fault block
moves, and the rigidity of the rocks in the fault zone 5. moment
magnitude c. the measure of the strength of an earthquake 6.
intensity d. a measurement system that expresses earthquake
intensity in Roman numerals and describes the effects of each
intensity 7. Mercalli scale e. a measurement system that bases
earthquake strength on ground motion 8. The Richter scale and the
moment magnitude scale provide similar values for what?
Small earthquakes 9. The moment magnitude scale is more accurate
for measuring what?
Large earthquakes 10. What is the highest moment magnitude recorded
for an earthquake so far?
9.5 1960 Valdivia earthquakeChile 11. How is Intensity XII
described on the modified Mercalli intensity scale?
Total destruction 12. Upon what does the intensity of an earthquake
depend?
Magnitude, the distance between the epicenter and the affected
area, the local geology, and the earthquakes duration. Earthquakes
and Society
Chapter 12 Section 3 Earthquakes and Society 13. What causes most
injuries during an earthquake?
The collapse of buildings and other structures of falling objects
and flying glass. 14. Name four other dangers that result from
earthquakes.
Landslides, explosions, fire, broken gas lines. 15. Most buildings
are not designed to withstand the
A. swaying motion caused by earthquakes 16. During an earthquake,
buildings with weak walls
B. may collapse completely. 17. What can affect the way that a
building responds to seismic waves?
B. the type of ground beneath the building. 18. What would a
building likely to be damaged during an earthquake be built
upon?
Loose soil and rock 19. Where could a destructive earthquake take
place?
B. in any region of the United States 20. In what geographic areas
in the United States are destructive earthquakes more likely to
occur?
d. California or Alaska 21. Earthquake safety rules may help
C. prevent death, injury, and property damage. 22. Before an
earthquake occurs, people should
B. be prepared. 23. Which of the following supplies are NOT
necessary when preparing for an earthquake?
D. piles of firewood 24. What should you stay away from if you are
indoors during an earthquake?
Windows, heavy furniture, and other objects that might topple over.
25. What should you check for after an earthquake?
Fire and other hazards 26. What should you always avoid after an
earthquake?
Downed power lines and objects that are touching them 27.
Earthquake prediction is mostly unreliable because not all
earthquakes have ____________ or other precursors. foreshocks The
End!!!
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