This animation shows the movement of seismic waves as they moved from Bolivia to San Juan Puerto Rico during a 1994 earthquake.

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

Scientists have determined that the earthquakes preceding volcanic eruptions are different than those that precede earthquakes. Discover the sounds and wave patterns produced by the three different types of volcanic seismic activities.

Information from the Multidisciplinary Center for Earthquake Engineering Research guided toward enhancing the ability of communities to survive and rebuild after an earthquake. Includes current news and conferences, and information about...

This university consortium provides on-going, current information on seismic activity happening all over the world. Of special interest is the Seismic Monitor. Open this page to a full screen to monitor global earthquake activity in real...

A list of frequently asked questions about earthquakes. This is a good source for earthquake trivia and separating fact from fiction.

The USArray Ground Motion Visualization (GMV) is a video-based IRIS DMS product that illustrates how seismic waves travel away from an earthquake location by depicting the normalized recorded wave amplitudes at each seismometer location...

jAmaSeis facilitates the study of seismological concepts in middle school through introductory undergraduate classrooms. Users can obtain and display seismic data in real-time from either a local instrument or from remote stations.

FAQs about tsunamis address the reasons they occur and the destruction they cause. Also, learn about systems in place that provide Tsunami warnings as well as the data collected by scientists studying violent earthquakes and seismic sea...

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