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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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Results 41 - 50 of 51 listed by similarity [list alphabetically]
PDF The ongoing Pu'u 'O'o eruption of Kilauea Volcano, Hawai'i -- 30 years of eruptive activity [More info]
Fact sheet chronicles and illustrates Kilauea Volcano's longest rift-zone eruption in more than 500 years.
PDF The story of the Hawaiian Volcano Observatory -- A remarkable first 100 years of tracking eruptions and earthquakes [More info]
History of the Hawaiian Volcano Observatory (HVO), established in 1912, including an overview of Hawaiian volcanic processes and USGS monitoring techniques.
Types and effects of volcano hazards [More info]
Describes the 6 main types of hazardous activities and processes associated with volcanoes, including tephra, lava flows, pyroclastic flows, lahars (volcanic mudflows), landslides, and volcanic gas.
Using tiltmeters to measure volcano deformation [More info]
Describes and illustrates how scientists use electronic tiltmeters measuring deformation on volcanoes.
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 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 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.
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