Geology and Earthquakes

What is a break in the lithosphere along which movement in an earthquake has first occurred?

• Earthquake
• Epicenter
• Fault
• Focus

Where is the point on the Earth’s surface directly above the focus of an earthquake?

• Epicenter
• Fault
• Hypocenter
• Tremor

Which type of wave is the first to arrive after an earthquake occurs?

• P Wave
• Rayleigh Wave
• S Wave
• Shear Wave

Which body wave squeezes and stretches rock materials as they pass through the Earth?

• Body Waves
• P Waves
• S Waves
• Surface Waves

Which body waves cause particles of rock material to move at right angles to the direction in which the waves are traveling?

• Body Waves
• P Waves
• S Waves
• Surface Waves

What is another term for P Wave?

• Compression Wave
• Principal Wave
• Shear Wave
• Secondary Wave

What is an instrument that detects and records waves produced by earthquakes? (This piece of equipment can measure the magnitude of an earthquake.)

• Epicenter
• Fault
• Seismogram
• Seismograph

What is the temporary state in which loose soil and rock materials take on the property of a liquid?

• Aftershock
• Liquefaction
• Seismic Gap
• Tsunami

What is a smaller earthquake that follows a larger earthquake?

• Aftershock
• Liquefaction
• Seismic Gap
• Tsunami

What is a large ocean wave that results from an underwater earthquake, landslide, or volcanic eruption?

• Aftershock
• Liquefaction
• Seismic Gap
• Tsunami