Earthquakes and Seismic Waves

What is a weakness or crack/break in the lithosphere that can shift and create an earthquake?

• Earthquake
• Epicenter
• Fault
• Focus

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

• Epicenter
• Focus
• Fault
• Plate

What 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 compresses and stretches rock materials as it passes through the Earth's interior?

• 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 the name of the instrument that measures movements in the ground during an earthquake and creates electric signals that can be read to determine an earthquake's magnitude?

• Seismometer
• Seismic Station
• Seismogram
• Seismograph

What is the measure of the amount of energy released in an earthquake?

• Intensity
• Epicenter
• Magnitude
• Seismogram

Which scale rates earthquakes based on the amount of damage done?

• Mercalli Scale
• Richter Scale
• Seismogram Scale
• Bernoulli Scale