Question 41 The __________ is measured in cross-sectional view as the angle of i

Question

Question 41

The __________ is measured in cross-sectional view as the angle of inclination from horizontal of a tilted rock layer, and _______ is viewed in map view as the compass bearing of the rock layer where it intersects a horizontal plane.

strike; strike

dip; dip

strike; dip

dip; strike

strike and dip; strike and dip

1 points

Question 42

With compressional forces, the hanging wall moves upward relative to the footwall; this type of fault is referred to as a __________ fault.

reverse

subnormal

transform

strike-slip

normal

1 points

Question 43

The point on the Earth's surface directly above the point where the fault first ruptures is called the ____________.

epicenter

hypocenter

depocenter

ethnocenter

1 points

Question 44

The _____ wave travels fastest and moves in a push-pull fashion of alternating pulses of compression (push) and extension (pull).

Love

Rayleigh

P-

S-

1 points

Question 45

P-waves can travel through ________________.

gases

liquids

solids

a vacuum

gases, liquids, and solids

1 points

Question 46

_________ waves travel only through solids; on reaching liquid or gas, the _______ wave energy is reflected back into rock or is converted to another form.

S-

P-

Rossby-

Q-

1 points

Question 47

The frequency of a wave is __________________.

the amount of displacement of the medium through which the wave is passing

the number of waves passing a given point per unit time

the time between successive waves

the energy of the wave

1 points

Question 48

Using the S-P timing method, epicenters can be located using seismograms from a minimum of ______ recording stations.

one

two

three

four

1 points

Question 49

The Richter Scale is set up so that for every _______ increase in the amplitude of the recorded seismic wave, the Richter magnitude increases one number, e.g., from 4 to 5.

two-fold

four-fold

eight-fold

ten-fold

hundred-fold

1 points

Question 50

The intensity of an earthquake is influenced by

earthquake magnitude

distance from the hypocenter/epicenter and duration of shaking

type of rock or sediment making up the ground surface

all of the above

strike; strike

dip; dip

strike; dip

dip; strike

strike and dip; strike and dip

Explanation / Answer

41) dip and strike

Dip is the angle of inclination of bed with respect to horizontal plane measured in a vertical plane. Strike is the horizontal line direction drawn on a bedding plane

42) reverse fault

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