Locating and Measuring Earthquakes

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 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 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 measure of the amount of energy released in an earthquake?

• Earthquake
• Epicenter
• Magnitude
• Seismogram

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

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

Which scale measures the intensity of the ground movement?

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

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 an area along a seismically active fault where no earthquake activity has occurred over a long period of time?

• Aftershock
• Liquefaction
• Seismic Gap
• Tsunami