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- 1. Multiple Choice
The elastic rebound theory:
explains folding of rocks.
explains the behavior of seismic waves.
explains the origins of earthquakes.
none of these.
- 2. Multiple Choice
The point within the Earth where seismic waves originate is
the epicenter
the fault scarp
the origin
the focus
- 3. Multiple Choice
P-waves are:
transverse surface waves.
compressional body waves
tensional surface waves.
shearing body waves
- 4. Multiple Choice
The minimum number of seismic stations needed to locate an earthquake is:
8
2
3
1
- 5. Multiple Choice
The Richter Scale is used to determine:
intensity of earthquakes
the magnitude of earthquakes.
the damage from earthquakes
the number of casualties in an earthquake.
- 6. Multiple Choice
Most earthquakes at divergent plate boundaries are:
shallow focus
intermediate focus
deep focus
all of these.
- 7. Multiple Choice
The fastest seismic waves are:
P-waves
S-waves
Love Waves
Rayleigh Waves
- 8. Multiple Choice
Analyses of seismograph records cannot provide information on
the magnitude of the earthquake
the location of the earthquake.
the number of fatalities in an earthquake
the depth of the earthquake.
- 9. Multiple Choice
The process of fluidizing water-saturated soil during an earthquake is known as:
liquefaction.
quick sand
gelatinization.
none of these.
- 10. Multiple Choice
Among the secondary effects of large earthquakes are
tsunamis
Fires
landslides.
all of these
- 11. Multiple Choice
Which of the following describes the build up and release of stress during an earthquake?
the Modified Mercalli Scale
the elastic rebound theory
the principle of superposition
the travel time difference
- 12. Multiple Choice
The amount of ground displacement in a earthquake is called the _________ .
epicenter
dip
slip
focus
- 13. Multiple Choice
The point where movement occurred which triggered the earthquake is the _______ .
dip
epicenter
focus
strike
- 14. Multiple Choice
Which of the following sequences correctly lists the different arrivals from first to last?
P waves ... S waves .... Surface waves
Surface waves ... P waves .... S waves
P waves ... Surface waves ... S waves
S waves ... P waves .... Surface waves
- 15. Multiple Choice
Earthquakes can occur with _________ faulting.
normal
reverse
thrust
all of these
- 16. Multiple Choice
How often do magnitude 8 earthquakes occur?
about 5 to 10 times per year
about once a year
about every 5 to 10 years
about every 50 to 100 years
- 17. Multiple Choice
Body waves consist of the:
P waves
S waves only
P and S waves
Surface waves
- 18. Multiple Choice
In general, the most destructive earthquake waves are the __________ .
P waves
S waves
Surface waves
Q waves
- 19. Multiple Choice
Where is the focus with respect to the epicenter:
directly below the epicenter
directly above the epicenter
in the P wave shadow zone
in the S wave shadow zone
- 20. Multiple Choice
Who developed the procedure used to measure the size of an earthquake?
Charles Richter
Edward Sheridan
James Hutton
Art Smith
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