Earthquakes Question Preview (ID: 41673)
Chapter Test.
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Stress that pushes a mass of rock in two opposite directions is called
a) shearing.
b) tension.
c) compression
d) deformation
The Modified Mercalli scale rates the amount of ________________________ from an earthquake.
a) damage
b) strength
c) energy
d) p wave movement
In a normal fault, the part of the fault that lies below the other part is called the
a) hanging wall.
b) reverse fault.
c) footwall.
d) anticline.
In a strike-slip fault, the rocks on either side of the fault slip past each other sideways with little
a) noise.
b) shaking.
c) up-or-down motion.
d) movement.
Which type of stress force produces reverse faults?
a) shearing
b) tension
c) compression
d) deformation
The Ring of Fire is an area of seismic activity around the ______________ ocean.
a) Pacific
b) Atlantic
c) Indian
d) Southern
A large area of flat land elevated high above sea level is called a
a) syncline.
b) plateau.
c) canyon.
d) fault
The point beneath Earth’s surface where rock breaks under stress and triggers an earthquake is called the
a) syncline.
b) footwall.
c) epicenter.
d) focus.
The type of seismic waves that arrive at the surface first and move by compressing and expanding the ground like an accordion are called
a) S waves.
b) P waves.
c) Surface waves
d) Mercalli waves.
The rating system that estimates the total energy released by an earthquake is called the
a) Richter scale.
b) moment magnitude scale.
c) mechanical seismograph scale.
d) Mercalli scale.
The stress force that pulls on the crust where two plates are moving apart is called
a) tension
b) compression
c) strike-slip
d) none of these
The block of rock that lies above a fault is called the ____________________.
a) footwall
b) hanging wall
c) block wall
d) none of these
Shearing creates ____________________ faults, like the San Andreas fault in California.
a) normal
b) reverse
c) strike-slip
d) both 1 and 2
The seismic waves that travel along Earth’s surface and produce the most severe ground movements are called ____________________.
a) surface waves
b) P waves
c) S waves
d) Light waves
Earthquakes occur most often along ___________________ boundaries.
a) country
b) plate
c) layer
d) large
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