Earthquake Test

Front

What is a seismic wave?

Back

A seismic wave is an elastic wave generated by an earthquake or by a blast. They are used to study the Earth's interior.

Front

What are the two main types of seismic waves?

Back

The two main types of seismic waves are body waves and surface waves.

Front

What is a body wave?

Back

Body waves are seismic waves that travel through the Earth's interior. They are further divided into P waves and S waves.

Front

What is a P wave?

Back

A P wave, or primary wave, is a type of body wave that travels the fastest and can move through solids, liquids, and gases.

Front

What is an S wave?

Back

An S wave, or secondary wave, is a type of body wave that travels slower than P waves and can only move through solids.

Front

What is a surface wave?

Back

Surface waves are seismic waves that travel along the Earth's surface. They are slower than body waves and usually cause more damage during an earthquake.

Front

Which type of seismic wave travels the slowest?

Back

Surface waves travel the slowest among seismic waves.

Front

What are aftershocks?

Back

Aftershocks are weaker earthquakes that occur in the same area after a stronger earthquake.

Front

What are foreshocks?

Back

Foreshocks are smaller earthquakes that occur before a larger earthquake in the same area.

Front

What is the focus of an earthquake?

Back

The focus of an earthquake is the point within the Earth where the earthquake originates.