Earthquakes

What type of boundary is the San Andreas in California?

• Convergent

• Transform

• Normal

• Divergent

How do convergent plates move?

• They pull away from each other.

• They slide by each other.

• They move toward each other.

• It depends, sometimes they move close to each other, sometimes they move far apart.

What is the measurement of an earthquake's strength based on seismic waves and movement along a rock called?

• Intensity

• Epicenter

• Magnitude

• Seismogram

Which scale rates earthquakes based on the amount of damage done based on people's observations?

• Modified Mercalli Scale

• Richter Magnitude Scale

• Seismograph

• Moment Magnitude Scale

Which seismic wave travels the fastest, and is always the first to be detected by a seismograph?

• P waves

• S waves

• Surface waves

• Tsunami waves

The most destructive type of wave is a ___

• P-wave

• S-wave

• Surface wave

• transverse wave

What does a seismograph measure?

• The amount of oil and gas underground.

• The amount of damage an earthquake causes.

• The temperature of the earth's core.

• The amount of shaking caused by an earthquake.

Which seismic wave moves at a 90 degree angle?

• P Waves

• S Waves

• Surface Waves

Which letter represents the movement created by the P Wave?

• A

• B

• C

What is directly above the focus?  

• Epicenter
• Fault
• Seismograph Station