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Mount St. Helens volcano
How volcanoes work, explained by a volcanologist
Mount Fuji, Japan. volcanism and plate tectonics volcanoes and thermal fields
What it's like to visit an active volcano
seismic sensor pahoehoe Mount St. Helens eruption.
Classify volcanic eruptions according to the physical and chemical properties of their magma
For Students
volcano summary
Quizzes
Hawaiian volcanic crater, Hawaii
Volcanoes Quiz
Taj Mahal, Agra, India. UNESCO World Heritage Site (minarets; Muslim, architecture; Islamic architecture; marble; mausoleum)
Wonders of the World Quiz
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animated gif/infographic of the Mount Tambora eruption, April 1815. volcano. Indonesia.
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Mount Saint Helens (Cascade Range, southwestern Washington) spewing ash during the 1980 eruption.; Mount St. Helens
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animated gif/infographic of the Mount Tambora eruption, April 1815. volcano. Indonesia.
How the 1815 Eruption of Mount Tambora Produced the “Year Without a Summer”
Ash cloud rising from the Kilauea Volcano Pu`u `O `o as crater floor collapses due to magma withdrawal. Incandescent rubble can be seen crumbling and rolling down the scarp. East rim of Pu`u `O `o is in the foreground, Kilauea, Hawaii on March 6, 2011.
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Arenal Volcano in northwestern Costa Rica in the province of Alajuela.
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Artist interpretation of a Space meteoroid impact. Meteor impact. Asteroid, End of the world, danger, destruction, dinosaur extinct, Judgement Day, Planet Earth, Doomsday Predictions, comet
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Albert Einstein in Washington, D.C. c. 1921-1923. Physicist
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Young men throw balloons and glitter from above the mosque at the celebration Eid Al-Fitr after prayers playing with balloons outside of Al-seddeeq mosque, Al-Mansourah, Egypt. 17 July 2015.
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Since the late 1700s, volcanoes have caused more than 250,000 deaths. Most of these occurred during four disastrous eruptions. The largest of the four occurred on April 10–11, 1815, at Mount Tambora on Sumbawa Island, now a part of Indonesia. Fifty cubic km (12 cubic miles) of magma were expelled in Plinian ash clouds and pyroclastic flows. Ash layers greater than 1 cm (0.4 inch) thick fell on more than 500,000 square km (193,000 square miles) of Indonesia and the Java Sea. Before the eruption Tambora was a stratovolcano some 4,300 metres (14,100 feet) high; following the eruption, approximately 1,400 ...(100 of 12070 words)

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