Earthquake Unit

What is the shaking of the Earth’s crust caused by a release of energy?

• Earthquake
• Epicenter
• Fault
• Plate

Which of the following is NOT a cause of an earthquake?

• Collapse of Cavern
• Eruption of Volcano
• Lightning Strikes
• Moving Tectonic Plates

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

• Earthquake
• Epicenter
• Fault
• Focus

Where is the point at which the first movement occurs during an earthquake?

• Epicenter
• Focus
• Fault
• Plate

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

______ is built to protect the inland area against wave action and prevent coastal erosion.

• sea wall

• parks

• buildings

• All of these