Earthquake Risks

The surface along which the crust moves is called a fracture

• True

• False

_____ is responsible for most of the damage buildings suffer during earthquakes.

The forces that move tectonic plates also move rocks along the fault. _______________

• True

• False

Tags

NGSS.MS-ESS2-3

The larger the force applied to a fault, the smaller the chance of a large earthquake

• True

• False

Tags

NGSS.MS-PS2-5

For the Richter scale, each increase on the scale represents ten times the amount of ground motion recorded on the seismogram. How much more motion is there for a magnitude 7 earthquake than a magnitude 4 earthquake?

• 3 times

• 30 times

• 1000 times

• 3000 times

Which scale would be used to classify an earthquake based on a description found in ancient writings?

• Modified Mercalli Scale

• Richter Scale

• moment magnitude scale

• all of the above

When the force on rocks is great enough, they break, producing vibrations called ____.

• faults

• earthquakes

• strains

• stresses

Tags

NGSS.MS-ESS3-2

What does the richter scale measure?

• the energy, or magnitude, of the largest seismic waves produced by an earthquake.

• the total energy released by the earthquake, taking into account the size of the fault, the motion along the fault, and the strength of the rocks that break during the earthquake

• the intensity of an earthquake based on descriptions of the effects of the earthquake on people and structures.

What does the moment magnitude scale measure?

• the energy, or magnitude, of the largest seismic waves produced by an earthquake.

• the total energy released by the earthquake, taking into account the size of the fault, the motion along the fault, and the strength of the rocks that break during the earthquake

• the intensity of an earthquake based on descriptions of the effects of the earthquake on people and structures.

What does the modified mercalli scale measure?

• the energy, or magnitude, of the largest seismic waves produced by an earthquake.

• the total energy released by the earthquake, taking into account the size of the fault, the motion along the fault, and the strength of the rocks that break during the earthquake

• the intensity of an earthquake based on descriptions of the effects of the earthquake on people and structures.