Earthquakes 6-1

Which of these can cause earthquakes?

• slipping of a fault
• eruption of a volcano
• a landslide
• all of these

Which of these is an example involving the stress force known as tension?

• the force a rock exerts as it strikes a roadway after tumbling down a hill
• the force a rock climber exerts on the rope as he rappels down a cliff
• the sliding of two  layers of rock across each other during a mudslide
• the rolling of a rock along the bottom of a raging river

Subduction would most likely be occurring at a  __________ boundary.

• convergent
• divergent
• normal
• transform

What is the major difference between a fault and a joint?

• Faults are always bigger than joints
• Faults occur on la d while joints are found beneath the ocean
• Faults involve visible movement of rocks but joints do not
• Faults cannot cause earthquakes but joints can

Most major faults in the U S are found in

• coastal plains
• inland praries
• mountain ranges
• southwestern deserts

Which of these statements is true?

• A locked fault must be a dip-slip fault
• A reverse fault is a type of dip-slip fault
• A normal fault is a type of strike-slip fault
• A transform fault is a type of dip-slip fault.

What is the name of the longest strike-slip fault in southern California?

• Los Angeles Fault
• New Madrid Fault
• San Andreas Fault
• San Mateo Fault

Secondary, smaller earthquakes that result from a major earthquake are called

• aftershocks
• strike slips
• dip slips
• epicenters

Certain types of seismic waves travel

• only on the earth's surface
• through the earth, but not the core
• through the earth, including the core
• in all of these ways

Rayleigh waves and Love waves are both examples of

• P waves
• S waves
• surface waves
• tremor waves