6.2/6.3 Flashcard #1 Practice

Front

Where do we typically find older continental crust?

Back

In the middle of the continents.

Front

What tends to happen along plate boundaries?

Back

Both earthquakes and volcanoes.

Front

What is the point on the Earth's surface directly above where an earthquake originates?

Back

Epicenter.

Front

What is the point below the Earth's surface where an earthquake originates?

Back

Focus.

Front

What is a fault in geological terms?

Back

A fracture or zone of fractures between two blocks of rock.

Front

What is the difference between the epicenter and the focus of an earthquake?

Back

The epicenter is the point on the surface directly above the focus, which is the point where the earthquake originates.

Front

What are seismic waves?

Back

Waves of energy that travel through the Earth, typically as a result of an earthquake.

Front

What is a tectonic plate?

Back

A massive, irregularly shaped slab of solid rock that makes up the Earth's lithosphere.

Front

What is subduction?

Back

The process by which one tectonic plate moves under another and is forced into the mantle.

Front

What is a volcanic eruption?

Back

The release of gas, ash, and molten rock from a volcano.