Understanding Earthquakes

How many earthquakes are officially reported each year by the United States Geological Survey?

• Several million

• Twenty

• Hundreds

• Thousands

What are the four major layers of the Earth, from innermost to outermost?

• Crust, Mantle, Outer Core, Inner Core

• Inner Core, Outer Core, Mantle, Crust

• Outer Core, Inner Core, Crust, Mantle

• Mantle, Crust, Inner Core, Outer Core

What causes an earthquake?

• Volcanic eruptions

• The shifting and sliding of tectonic plates

• Large ocean waves

• Landslides

Which of the following is NOT one of the three ways tectonic plates shift or slide?

• Subduction

• Lateral Sliding

• Compression

• Spreading

Are you enjoying the video lesson?

• Yes

• No

What is the term for the location of an earthquake on the Earth's surface?

• Focus

• Hypocenter

• Epicenter

• Magnitude