Earth's Layers and Seismic Waves

Front

What is the energy radiated in all directions from the focus due to an earthquake?

Back

Seismic waves

Front

What are the four layers of the Earth?

Back

Crust, Mantle, Outer Core, Inner Core

Front

Which layer of the Earth is the least dense?

Back

Crust

Front

What type of wave reaches a certain point first during an earthquake?

Back

Primary waves (P-Waves)

Front

What is the source of heat for convection in the mantle?

Back

The core

Front

What are seismic waves?

Back

Waves of energy that travel through the Earth, generated by earthquakes or other geological activity.

Front

What is the focus of an earthquake?

Back

The point within the Earth where an earthquake originates.

Front

What is the epicenter of an earthquake?

Back

The point on the Earth's surface directly above the focus of an earthquake.

Front

What are body waves?

Back

Seismic waves that travel through the interior of the Earth, including P-waves and S-waves.

Front

What are surface waves?

Back

Seismic waves that travel along the Earth's surface, causing the most damage during an earthquake.