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Volcanoes

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Volcanoes:
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Volcanic eruptions can occur under water or on land; they can be beautiful events, which build islands, or catastrophic events, which endanger lives and property. CMG research aims to understand the geologic processes acting, and the local and regional susceptibility to these potentially hazardous events.
Other related USGS websites:
Center for Integration of Natural Disaster Information [CINDI]
Volcano Hazards Program

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Items below are listed from most recently updated to least recently updated.

These are results 1 through 10 of 10 matches.

Publication
Antarctica - The Dynamic Heart of It All - USGS Fact Sheet
Description: The U.S. Geological Survey (USGS) has worked in Antarctica for nearly 50 years, starting in 1947 with geophysical and geologic surveys and in 1957 with topographic mapping. Today the USGS also does marine, airborne, and satellite studies, as well as mapping and coring of the ice sheet, as part of the U.S. Antarctic Program. USGS scientific leadership is a cornerstone for international Antarctic cooperation, and data and information gathered by USGS researchers are important to the development of U.S. policy regarding the Antarctic.
updated: 2004-03-02 pages include:

Publication
Crater Lake National Park: Presently Tranquil - USGS Fact Sheet
Description: Are volcanic eruptions likely again at Crater Lake? One of the approaches U.S. Geological Survey scientists are using to answer this important question is to unravel the geologic history of the Crater Lake caldera floor.
updated: 2004-03-02 pages include:

Publication
The Escanaba Trough of Gorda Ridge: A Laboratory for Mineral-forming Processes - USGS Fact Sheet
Description: The Gorda Ridge is a unique geological system in the Exclusive Economic Zone of the United States. This tectonically and volcanically active plate boundary has an unusual morphology for spreading centers in the Pacific Ocean: a deep, wide axial valley flanked by high ridges. Because of its location near the continental margin, part of the axial valley known as the Escanaba Trough is covered by sediment. The Escanaba Trough provides opportunities for scientists to learn details about tectonics, volcanism, mineral formation, and biological activity that are not normally observed at mid-ocean ridges. It is a geological laboratory of grand proportions.
updated: 2004-03-02 pages include:

Publication
Natural Disasters - Forecasting Hurricane Occurrence
Description: Events such as hurricanes, earthquakes, floods, tsunamis, volcanic eruptions, and tornadoes are natural disasters because they negatively impact society, and so they must be measured and understood in human-related terms. At the U.S. Geological Survey, we have developed a new method to examine fatality and dollar-loss data, and to make probabilistic estimates of the frequency and magnitude of future events. This information is vital to large sectors of society including disaster relief agencies and insurance companies.
updated: 2003-03-02 pages include:

Publication
Lava-Cooling Operations During the 1973 Eruption of Eldfell Volcano, Heimaey, Vestmannaeyjar, Iceland, U.S.Geological Survey Open-File Report 97-724, by Richard S. Williams,Jr., Editor
Description: In order to protect public and private property from being destroyed by lava flows, various plans and actual attempts have been made in the past on volcanoes to stop or divert lava flows. The most extensive ever attempted, however, were the lava-cooling operations on Heimaey, Iceland, and the two excellent accounts of the operations that were published in Icelandic by a geophysicist, Thorbjörn Sigurgeirsson, and two engineers, Valdimar Kr. Jónsson and Matthías Matthíasson, are translated into English in this open-file report.
updated: 2002-04-24 pages include:

Publication
Icelandic-English Glossary of Selected Geoscience Terms. R Williams; USGS Open-file Report 95-807
Description: A Glossary of Icelandic geoscience terms, and discussion of their etymology within the Icelandic language.
updated: 2002-04-24 pages include:

Data Set
Hawaiian Islands GLORIA Imagery
Description: GLORIA sidescan sonar imagery of the Hawaiian Islands, showing index map and downloadable quadrangles of sea-floor imagery.
updated: 2001-07-19 pages include:

Publication
High-Resolution Multibeam Survey off Honolulu, Hawaii
Description: AGU Abstract on sonar mapping survey of seafloor off Honolulu Hawaii
updated: 1999-08-09 pages include:

Publication
Hydrocarbons in Monterey Bay Marine Sanctuary
Description: Description and interpretation of hydrocarbons associated with fluid venting processes in Monterey Bay, California.
updated: 1999-02-17 pages include:

Publication
Sea-Floor Geology of a Part of Mamala Bay, Hawaii
Description: Journal article discussing mapping survey off Honolulu Hawaii including sidescan sonar images, 3.5-kHz profiles, video and still visual images, and box-core samples
updated: 1997-10-08 pages include:

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Coastal and Marine Geology Program > Online Science Resource Locator > Volcanoes