Earthquakes Quizizz

A force that acts on rock to change its shape or volume is called _______

• An aftershock

• Liquefaction

• Stress

Stress that pushes a mass of rock in two opposite directions is called _______

• Shearing

• Tension

• Compression

Which type of stress force produces reverse faults?

• Shearing

• Tension

• Compression

The type of stress that pulls on the crust, stretching rock so that it becomes thinner in the middle is called ___________________________.

• Shearing

• Tension

• Compression

Shearing creates ___________________________ faults, like the San Andreas fault in California.

• Reverse

• Normal

• Strike slip

Elastic strain causes _____________________ in rock.

• no change

• permanent deformation

• temporary deformation

Plastic strain causes _____________________ in rock.

• no change

• permanent deformation

• temporary deformation

Frequent earthquakes in an area may indicate

• tectonic plate boundaries.

• sea-floor spreading.

• normal polarity.

At what location does the first motion of an earthquake occur?

• the focus

• the seismic gap

• the mantle

In what direction do seismic waves carry the energy of an earthquake?

• Away from the focus

• the seismic gap

• the mantle