Although the San Andreas Fault is the longest and one of the most active fault zones in California, it is not responsible for every earthquake in the state. This video segment describes the geologic setting of the San...

This bulletin discusses the magnitude 7.9 earthquake that shook the islands of Tonga in May 2006. Topics include the tectonic setting of the islands, at the boundary of the Pacific and Australian plates, the frequent...

This set of lists and maps provides information on the latest earthquakes for the 50 states and Puerto Rico. The lists are organized by date and time, and by magnitude. On the interactive maps, symbols are coded by size...

In this activity, presented by the Lane Community College MAPS GIS Program, students will learn the concept of a digital data viewer, and how this resource can help them learn more about plate tectonics. Students will...

ShakeMaps, a product of the United States Geological Survey (USGS) Earthquake Hazards Program, are near-real-time maps of ground motion and shaking intensity that are produced following significant earthquakes. They...