Contains information related to the volcano Mt. Etna including formation, location, history, consequences, benefits, preventative measures, and comparison with other volcanoes.

Volcano experts offers answers to well over 100 user-submitted questions.

View a photograph and learn some basic information about this type of volcano.

A photo essay from Time recording the eruption of the volcano from July 12 - 27, 2001.

National Geographic feature explains how volcanoes form and examine the destruction wrought on the Caribbean island of Montserrat.

Explains what a volcano is and identifies active volcanoes in the United States.

Yellowstone National Park provides information about geothermal features like hot springs, mudpots, fumaroles (steam vents), geysers and more.

Talks about the Volcanic Explosivity Index. Talks about predicting volcanic activity and disaster planning.

Companion Web site to the NOVA program. An interview with seismologist Bernard Chouet, who has come up with a new method for predicting volcanic eruptions.

Choose from 6 volcano virtual field trips. Includes photos and maps.

Questions about volcanoes in general, and about specific volcanoes.

Popocatepetl in Central Mexico. Includes refreshable images and background information.

This interactive exhibit, part of the Exhibits Collection of The Annenberg/CPB Projects, explores why volcanic eruptions occur. Activities invite visitors to melt rocks, locate famous volcanoes and play the role of a volcanologist. Includes video clips.

Lists information about volcanoes such as why they erupt and what they are made of. Also contains activities and links to other informative sites.

A look at volcanoes on Mars, Venus, the Earth's moon and Io.

Thinkquest site offers a basic introduction to volcanoes and plate tectonics. In English and Dutch.

Includes stories about volcanoes by children's author Jane Kurtz, school project ideas, legends, virtual field trips, and games.

Watch fascinating video clips of volcanoes erupting.

Volcano facts and a glossary.

Site monitors the largest volcanic system in North America. Offers information about current activity, volcanic history and a photo gallery.