Earthquakes

Front

What is the point on the Earth’s surface directly above the origin of an earthquake?

Back

Epicenter

Front

What is the main cause of most earthquakes?

Back

Pressure from within the earth's crust

Front

What is it called when the Earth’s crust shakes and causes a release of energy?

Back

Earthquake

Front

Which type of wave is the first to arrive after an earthquake occurs?

Back

P Wave

Front

What is a large ocean wave that results from an underwater earthquake, landslide, or volcanic eruption?

Back

Tsunami

Front

What is the term for the fracture or zone of weakness in the Earth's crust where earthquakes occur?

Back

Fault

Front

What are the vibrations that follow an earthquake called?

Back

Aftershocks

Front

What is the term for the process by which saturated soil loses strength and behaves like a liquid during an earthquake?

Back

Liquefaction

Front

What is the name of the scale used to measure the magnitude of an earthquake?

Back

Richter Scale

Front

What is the term for the boundary where two tectonic plates meet?

Back

Plate Boundary