Earthquakes (Chapter 19)

What is the total force acting on crustal rocks per unit of area?

• Stress

• Strain

• Elastic Deformation

• Plastic Deformation

• Fault

What is the deformation of materials in response to stress?

• Stress

• Strain

• Elastic Deformation

• Plastic Deformation

• Fault

What is the process when stress causes a material to strain, but afterward the material returns to its original shape?

• Stress

• Strain

• Elastic Deformation

• Plastic Deformation

• Fault

What is the process when stress causes a material to strain past the elastic limit and material has permanent deformation?

• Stress

• Strain

• Elastic Deformation

• Plastic Deformation

• Fault

What is a weak region in the crustal rock where movement of the Earth occurs?

• Stress

• Strain

• Elastic Deformation

• Plastic Deformation

• Fault

What is the vibrations of the ground produced during an earthquake?

• Seismic Wave

• Primary Wave

• Secondary Wave

• Surface Wave

What is a seismic wave that causes rock particles to move perpendicular to the direction of the waves?

• Seismic Wave

• Primary Wave

• Secondary Wave

• Surface Wave

What is a seismic wave that squeezes and pushes rocks in the same direction that the wave travels?

• Seismic Wave

• Primary Wave

• Secondary Wave

• Surface Wave

What is the slowest traveling seismic wave that moves along Earth’s surface and cause the ground to move sideways and up and down?

• Seismic Wave

• Primary Wave

• Secondary Wave

• Surface Wave

What is the point of initial fault rupture of an earthquake ; usually several kilometers below Earth's surface?

• Focus

• Epicenter