Grade 7 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.HS-PS2-1

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.

The strength of an earthquake is known as the

• aftershock

• magnitude

• epicenter

• seismograph

The point on the Earth's surface right above the focus of an earthquake is known as the

• magnitude

• aftershock

• epicenter

• fault

The __________ scale rates the total energy released by an earthquake.

• Mercalli

• Richter

• Moment Magnitude

• All of the above

This scale rates the size of the seismic waves.

• Seismograph

• Richter

• Mercalli

• Moment MAgnitude