Chapter 19 Quiz

The total force acting on crustal rocks

• Strain

• Stress

• Magnitude

• Amplitude

The deformation of materials in response to stress

• Strain

• Magnitude

• Amplitude

• Seismic Gap

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

Point of the initial fault rupture where an earthquake originates that usually lies beneath Earth's surface

• Epicenter

• Fault

• Seismogram

• Focus

Point on Earth's surface directly above the focus of an Earthquake

• Focus

• Epicenter

• Fault

• Seismic Wave

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