In this interactive tutorial you will learn about earthquakes and seismic waves. Learn about why and how these form and also discuss the hazards - direct and indirect - posed by earthquakes. You will then learn how our knowledge of...

Understand the characteristics and features of Earth's core from this detailed article. Includes high-quality illustrations, a downloadable poster, a video, and links to other resources.

A basic overview of the earth's mantle, crust, inner core, and outer core. Also discusses how earthquake waves travel through the Earth.

As an overview of the online exhibit on earthquakes, this site discusses the various sections inside the Earth. The crust, the mantle, and the core are each individually discussed.