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Volcanoes
Vents in the surface of the Earth through which magma and associated gases erupt; also, the forms or structures, usually conical, that are produced by the erupted material. [Glossary of Geology, 4th ed.]
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Volcano Hazards Program [More info]
Homepage for USGS Volcano Hazards Program with feature stories, and links to worldwide volcano updates, volcanic hazards, reducing volcanic risk, USGS international programs, and resources such as educator's page, videos, and online reports.
Volcano Hazards Program, California Volcano Observatory [More info]
Overview of volcano hazards in California with links to monitoring data including earthquakes and deformations, long-term outlook, volcano hazards in the area, USGS response plan, image gallery, monitoring and topical studies, publications and references.
Volcano and hydrologic hazards, features, and terminology [More info]
Links to explanations of volcanic hazards and features and to a glossary of volcano terminology.
Volcano hazard zones in the Long Valley - Mono Lake Area, California [More info]
Describes the volcano-hazard zones for the Long Valley and Mono-Inyo Craters volcanic chain identified by scientists of the U.S. Geological Survey.
Volcano monitoring at Yellowstone National Park [More info]
Describes volcano monitoring at Yellowstone National Park including an update of recent volcanic activity, real-time data, and link to volcano monitoring techniques information.
Volcano video and television surveillance monitoring systems [More info]
Visual monitoring of volcanoes by closed-circuit television and video monitoring for a permanent video record of events using slow-scan television which permits continuous surveillance at a distance for remote volcanoes or in times of danger.
Volcano watch [More info]
Volcano Watch is a weekly newsletter issued by the U.S. Geological Survey's Hawaiian Volcano Observatory on volcanic features on the Big Island, volcanic hazards, and informational topics of Long Valley, Montserrat, or Alaska.
Volcanoes [More info]
This booklet presents a generalized summary of the nature, workings, publications, and hazards of the common types of volcanoes around the world, along with a brief introduction to the techniques of volcano monitoring and research.
Volcanoes of Hawaii feature stories archive [More info]
Archive of feature stories on volcanic features on the Big Island, guided tours of Hawaii Volcanoes National Park, eruptions and eventful earthquakes, and other topics about the work of scientists at the Hawaiian Volcano Observatory.
Volcanoes of Hawaii photo gallery [More info]
Images of Hawaiian volcanoes and the islands they've built in the past few million years, and images of recent eruptions.
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