Earthquakes 2 Question Preview (ID: 814)

Earthquakes. TEACHERS: click here for quick copy question ID numbers.

By analyzing the difference in the time it takes for P and S waves to arrive at a seismograph station, scientists can determine an earthquake's -
a) focus
b) L waves
c) fault zone
d) intensity

The Richter scale expresses an earthquake's
a) magnitude
b) location
c) speed
d) depth

Most injuries during earthquakes are caused by -
a) the collapse of buildings
b) cracks in the earth's surface
c) the vibration of S waves
d) The vibration of P waves

A large seismic sea wave is called -
a) a tsunami
b) a P wave
c) an L wave
d) an S wave

If an earthquake strikes while you are in a car, you should
a) continue driving
b) get out of the car
c) park the car under a bridge
d) stop the car in a clear space and remain in the car

The stae of balance between the thickness of the curst and the depth at which it floats on the asthenosphere is called
a) stress
b) isostatic adjustment
c) strain
d) shearing

Isostatic adjustment causes -
a) earthquakes
b) stress
c) folding
d) all of the above

Which on of the following is not an earthquakes safety tip?
a) Be prepared
b) Stay calm
c) Stay inside
d) Be cautious

Seismic gaps are -
a) Locations where earthquakes have not occured in a period of time
b) Locations where there is increased earthquake activity
c) the time between P and S waves
d) None of the above

Tsunamis are cuases by -
a) underwater earthquakes
b) underwater landslides
c) underwater sea waves
d) All of the above

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