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1.
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(1 point) Faults are fractures in the crust along
which appreciable displacement has occurred.
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2.
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(1 point) An earthquake is the vibration of Earth
produced by the rapid release of energy
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3.
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(1 point) How does earthquake magnitude differ from
intensity?
a | Magnitude reflects energy release, while intensity reflects the amount
of shaking. | c | The two terms are synonymous, referring simply to the size of the
earthquake | b | Intensity reflects energy release, while magnitude reflects the amount
of shaking. | d | Magnitude is a
reult of the amount of shaking, which is determined by intensity. |
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4.
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(1 point) There is a
common misconception that someday part of California will sink into the ocean and disappear. With
your knowledge of the San Andreas fault zone and plate tectonics you can argue that this will not
occur because ___________________.
a | the dominant movement on the San Andreas is
reverse and part of California will move further inland | b | the San Andreas is a normal fault that dips to the east so all of the
land east of fault zone will move down | c | the San Andreas is
a normal fault that dips to the east so all of the land east of fault zone will move
down | d | the dominant movement on the San Andreas is
right-lateral strike slip but movement on the fault has ceased | e | the dominant movement on the San Andreas is right-lateral strike slip
and the part of California west of the fault zone will move further north, but will not sink into the
ocean |
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5.
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(1 point) If, during an earthquake, a hanging wall
slides upward relative to a footwall, the fault is termed ____________ if the fault is steep (closer
to vertical than horizontal).
a | normal | b | reverse | c | strike-slip | d | thrust |
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6.
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(1 point) If, during an earthquake, a hanging wall
slides upward relative to a footwall, the fault is termed ____________ if the fault is shallow (much
closer to horizontal than vertical).
a | normal | b | reverse | c | strike-slip | d | thrust |
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7.
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(1 point) If, during an earthquake, a footwall
slides upward relative to a hanging wall, the fault is termed ____________.
a | normal | b | reverse | c | strike-slip | d | thrust |
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8.
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(1 point) An earthquake occurs with an epicenter in
the town of New Madrid, Missouri, in the interior of the North American Plate. Where might the
hypocenter of this earthquake plausibly be found?
a | in New Madrid (“hypocenter” and “epicenter” mean precisely
the same thing) | b | 10 km south of New Madrid | c | 20 km beneath New Madrid | d | There is no such
thing as an “hypocenter” |
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9.
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(1 point) The destruction caused by an earthquake is
affected by ____________.
a | ground type | d | all of the above | b | distance from the earthquake | e | none of the above | c | building
design |
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10.
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(1 point) Ground shaking caused by an earthquake can
result in:
a | Liquifaction / Ground subsidence | d | All of these | b | Landslides | e | None of these | c | Building
Collapse |
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