Chapter 19.1-3 Quiz

Fracture in Earth's crust that occurs when stress is applied too quickly or is too great

• Strain

• Fault

• Focus

• Epicenter

Vibrations of the ground during an earthquake

• Seismic Wave

• Amplitude

• Tsunami

• Stress

Seismic wave that squeezes and pushes rock in the same direction that the wave travels

• Secondary Wave

• Primary Wave

• Strain

• Fault

Seismic wave that causes rock particles to move at right angles to the direction of the wave

• Primary Waves

• Secondary Wave

• Seismic Gap

• Fault

Instrument used to measure horizontal or vertical motion during an earthquake

• Seismogram

• Seismometer

• Richter Scale

• Seismic Gap

Record produced by the instrument used to measure motion during an earthquake

• Seismometer

• Seismogram

• Seismic Gap

• Richter Scale

Numerical rating system used to measure the amount of energy released during an earthquake

• Richter Scale

• Moment Magnitude Scale

• Modified Mercalli Scale

• Seismic Gap

Measure of the energy released during an earthquake, which can be described using the Mercalli Scale

• Amplitude

• Magnitude

• Stress

• Strain

Scale used to measure earthquake magnitude but takes into account the size of the fault rupture, the stiffness of rocks, and the amount of movement along the fault

• Richter Scale

• Moment Magnitude Scale

• Modified Mercalli Scale

• Seismic Gap

Measures earthquake intensity using Roman numerals based on the amount of damage caused

• Richter Scale

• Modified Mercalli Scale

• Moment Magnitude Scale

• Seismic Gap