Definitions and descriptions of a variety of seismic waves such as S, P, Love, and Rayleigh waves, as well as diagrams and speeds.

The different types of earthquake waves are discussed and illustrated. Features geologist video clip.

Discover why earthquakes happen, how we measure them, and why they only happen on Earth.

An informative site that explains how and where earthquakes occur and the different types of faults. Contains maps and charts of fault lines, plate edges, and the continental plates. There are other links within the site of related...

Content includes background information, are you at risk, and details about what happens before, during, and after a tsunami.