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United States Geological Service : General Information on Volcanoes | |
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NOVA: Deadly Shadow of Vesuvius - learn about predicting and planning for eruptions, a volcano SWAT team, and the research that volcanologists perform. | |
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US Geological Service: "Ring of Fire", Plate Tectonics, Sea-Floor Spreading, Subduction Zones, "Hot Spots" | |
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National Earthquake Information Center - U.S. Geological Survey - Includes information on current earthquakes and seismological activity worldwide, a searchable database of earthquakes, preparedness information, and more. |
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This Dynamic Earth: The Story of Plate Tectonics : Complete text and figures from this book published by the U.S. Geological Survey. | |
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