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The Stromboli volcano off the coast of Sicily has erupted continuously for thousands of years, giving rise to the term...
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Encyclopedia: Types of volcanic eruptions
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This interactive exhibit, part of the Exhibits Collection, explores why volcanic eruptions occur. Activities in the exhibit invite visitors to melt rocks, locate famous volcanoes and play the role of a volcanologist.
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An eruption begins when pressure on a magma chamber forces magma up through the conduit and out the volcano's vents. When the magma chamber has been completely filled, the type of eruption partly depends on the amount of gases and silica in the magma. Volcanic activity is classified by how often a volcano erupts.
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Now you find an exhibit on what causes volcanic eruptions. It says far below the earth's crust, there is molten or melted rock, a big mass of magma.
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The type of volcanic eruption Is often labeled with the name of a well-known volcano where characteristic behavior is similar--hence the use of such terms as "Strombolian," "Vulcanian," "Vesuvian," "Pelean," "Hawaiian," and others.
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In addition to responding to eruptive activity at Alaska volcanoes, AVO assisted in the dissemination of information for the Kamchatka Volcanic Eruption Response Team (KVERT) about the 2003 activity of 6 Russian volcanoes: Sheveluch, Klyuchevskoy, Bezymianny, Karymsky, Alaid, and Chikurachki volcanoes.
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Dec 21, 2009 Philippine troops on Monday pressed the last 3000 villagers who have refused to heed government warnings to leave the danger zone around a...
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You can see how this very tall volcano has been built up by layers of ash and lava from previous eruptions. The volcano is currently dormant. But it is about to re-awaken! Because it is lighter than solid rock, The volcano will erupt when gases held within the magma burst out explosively, now that they Back to Article...
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This website is an educational resource that describes the science behind volcanoes and volcanic processes. The site is sponsored by NASA under the auspices of Project ERUPTION PRODUCTS ; Lava flow types; Flow features; Lava and water; Tephra; Pyroclastic flows; Lahars; Volcanic gases; Climate effects; TEST YOURSELF...
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