Find out more about volcanoes at the sites below:
Link to USGS sites.
Link to non-USGS sites. We are happy to provide this link for your convenience. Please be aware that we cannot guarantee the accuracy of non-USGS sites.

Featured Sites Volcanoes This 45-page booklet presents a summary of the nature of the earth processes that create common types of volcanoes around the world, along with an introduction to the techniques of volcano monitoring research. USGS Volcano Hazards Program Contains background information on volcanoes, history, real-time reports, and education page. Cascades Volcano Observatory Enriched with background information, photo archives, glossary, fun activities, and real-time video cams.  Books & Other Publications These pages contain listings of online USGS books, reports, and pamphlets.  Geologic Information Geologic and mineral resource surveys and mapping for the Department of the Interior.  USGS Geology in Parks Learn geology basics from touring the national parks.  Media for Science Photo collections of maps, natural disasters, and activities at the USGS.  Eruptions of Hawaiian Volcanoes: Past, Present, and Future The volcanic history of the Hawaiian Islands with dramatic, color photographs and diagrams and informative text on Hawaiis active shield volcanoes, Mauna Loa and Kilauea.  Volcanic and Seismic Hazards on the Island of Hawaii This booklet provides information for the residents of Hawaii so they may effectively deal with the special geologic hazards of the island.  Man Against Volcano: The Eruption on Heimaey, Vestmannaeyjar, Iceland This 28-page booklet discusses the impact of the 1973 volcanic eruption of Eldfell on the island of Heimaey. (In PDF format.)  Monitoring Active Volcanos How scientists track volcanic movements.  Volcanoes of the United States This 44-page booklet describes the principal volcanoes in Hawaii, Alaska, and the Cascades Mountain Range that have erupted during the last few hundred years. Also summarizes recent events at active calderas in California and Wyoming.  Fire and Mud: Eruptions and Lahars of Mount Pinatubo, Philippines Know all about the eruption history, impacts of the eruption, rocks, and lahars of Mount Pinatubo, Philippines.  Eruptions of Mount St. Helens: Past, Present, and Future Highlights the eruptive history of this composite volcano, reviews its activity since its awakening in 1980, and speculates about its behavior in the future.  Eruptions of Mount St. Helens: Past, Present, & Future Highlights the eruptive history of this Mount St. Helens.  USGS Volcano Hazards Program A comprehensive overview of the U.S. Geological  Photo Glossary of Volcano Terms A picture speaks a thousand words. Learn volcano terms with images and photos.  Cascades Volcano Observatory Focuses on hazards, activity, history, and monitoring of volcanoes, with emphasis on volcanoes of the Western United States.  Volcano and Hydrologic Hazards, Features, and Terminology Contains detailed background info and photos of volcanic features and terms.  Current Volcanic Activity Contains a list of sites with real-time volcano monitoring.  Photo Archives of Volcanoes Numerous photos of various volcanoes, live images, eruption features, volcanic monitoring equipments, and more...  VolcanoCams Around the World "Live" views of volcanoes from around the world, including Europe and Japan.  Hazards Fact Sheets Documentations and reports of natural disasters.  What Are Volcano Hazards? Understand how volcanoes endanger us.  Earthquakes and Other Natural Hazards Learn about earthquakes and other hazards and find out how to prepare for these hazards.  Science Challenge Questions and Answers A collection of 196 questions and answers addressing earth and planetary science topics.  Animated Map This map shows the combined effect of all six hazards--earthquake, volcanic, landslides, flooding, hurricane, and tornado. Watch as the distribution of each is added to the previous hazards.  Geographic Distribution of Major Hazards in the US Six theme maps showing high risk or relatively frequent actual occurrences of hazards (floods, earthquakes, landslides, hurricanes, tornadoes, and volcanic eruptions.)  Hazards Links to various hazards reports, including earthquake, volcanoes, flood, landslides, wildfire, wildlife diseases, geomagnetism, and coastal storms and tsunamis.  Windows to the Universe Fun and intriguing site about the earth and space sciences.  Park Geology Teacher's Features Teaching geology with national park examples.  Park Geology Tour of National Parks Learn geology through online tour of national parks.  Geologic animations Animations include plate tectonics, gas, oil, and more.  Earth Science Classroom Activities Classroom activities on geology-related subjects for grades k-3.  The EarthPulse Center Interactive learning tool for earthquake location, magnitude, distribution and forecasting.  Geo Mysteries with Rex, the Dino Detective Fun and interactive geologic site for kids.  Earthforce Informative site about forces that cause eruptions, quakes, and floods.  Photo Gallery of Mount St. Helens View over 190 photos of Mount St. Helens' landscape and wildlife before and after eruption.  E-cards of Natural Disasters Send e-cards on images of volcanoes, earthquakes, tsunamis, and landslides.  American Geological Insititute Education Produce innovative inquiry-based curriculum for K-12 earth science education.  Athena, Earth and Space Science K-12 education page for teachers and students.  A Teacher's Guide to the Geology of Hawaii Volcanoes National Park Contains information and classroom activities about plate tectonics, volcanoes, hot spots, mantles, lava, and more.