Understanding Earthquakes

What causes an earthquake to occur?

• The melting of glaciers

• The rotation of the Earth

• The gradual erosion of mountains

• The sudden movement of large blocks of rocks in the Earth's crust

What is the term for the point underground where an earthquake begins?

• Focus

• Seismic zone

• Epicenter

• Fault line

How many earthquakes occur on Earth each year?

• About ten thousand

• Less than a thousand

• Exactly one million

• More than a million

In the 2016 New Zealand earthquake, what was observed along the fault line?

• The sea level rose significantly

• A fault scarp was formed with one side moving downwards

• The land moved upwards on both sides

• A new mountain range formed

What infrastructure was notably affected by the 2016 earthquake in New Zealand?

• A power plant

• An airport

• A dam

• A railway line and road