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Volcanoes and Volcanic Eruptions

Volcanic ExplosivityVolcanic Explosivity Volcanic Explosivity Rating volcanic eruptions based upon the volume of tephra ejected. Volcanoes on Venus?Volcanoes on Venus Volcanoes on Venus? The surface of Venus is covered by lava flows and shield volcanoes. Dangerous VolcanoMount Rainier Mount Rainier A dangerous volcano with a history of deadly lahars and pyroclastic flows. Geology ToolsGeology Tools Geology Tools - Hammers, field bags, hand lenses, maps, hardness picks, gold pans.
Mount EtnaMount Etna Mount Etna The most active volcano in Europe, continues an eruption that started in 2001. St. Helens - 30 YearsMount St. Helens - 30 Years Mount St. Helens - 30 Years Two USGS videos review the eruption and its impact. Yellowstone CalderaYellowstone Caldera Yellowstone Supervolcano Three USGS videos explain the history and eruptive activity. Types Of EruptionsTypes Of Eruptions Types of Volcanic Eruptions A description of the most common eruption types.
Deepest VolcanoDeepest Volcano The Deepest Volcano Erupting 4000 feet below the surface of the Pacific. Mount VesuviusMount Vesuvius Mount Vesuvius Geology, history, maps, facts and more about Vesuvius Volcano. Hawaiian Hot SpotHawaiian Hot Spot How did the Hawaiian Islands Form? The power of a moving plate over a stationary hot spot. Volcanic HazardsVolcanic Hazards Volcanic Hazards Lava, pyroclastic density currents, lahars, gases and more.
Largest VolcanoLargest Volcanoes Largest Volcano - That title is shared by Tamu Massif, Mauna Kea and Ojos del Salado. Chaiten VolcanoChaiten Volcano Chaiten Volcano Geology, history and facts about this explosive volcano. Igneous RocksIgneous Rocks Igneous Rocks Descriptions and photos of common igneous rocks. Stromboli VolcanoStromboli Volcano Stromboli Volcano Geology, history, maps, plate tectonics and more.
Blue Flamesblue flames Blue Flames and the largest highly acidic lake in the world at Kawah Ijen Volcano. Wrong Volcano?Novarupta The most powerful eruption of the 20th century was blamed on the wrong volcano. Pavlof VolcanoPavlof Volcano Pavlof Volcano - an active North American volcano and a threat to air traffic. Teaching TectonicsTeaching Tectonics Teaching Plate Tectonics Students enjoy learning with easy-to-draw illustrations.
Mars VolcanoOlympus Mons Olympus Mons The largest volcano in the solar system is on Mars. Volcanic AshVolcanic Ash Volcanic Ash Learn about volcanic ash, volcanic dust and their impacts. CalderasCalderas Calderas are large volcanic craters formed by some of Earth\'s largest eruptions. Eruption PhotosEruption Photos Spectacular Eruption Photos A collection of volcanic eruption photos by USGS, NASA, NOAA.
Santa Maria VolcanoSanta Maria Volcano Santa Maria A volcano in Guatemala. Produced one of the largest eruptions of the 1900s. Great Rift ValleyGreat Rift Valley The East Africa Rift System Volcanics and tectonics of this active rift system. Volcanic LightningVolcanic Lightning Redoubt Volcano Lightning Photographs of lightning in the Redoubt Volcano ash cloud. Arenal VolcanoArenal Volcano Arenal Volcano Geology, history, hazards, plate tectonics and more.
HeleniteHelenite Helenite is a man-made glass produced by fusing ash from the 1980 Mount St. Helens eruption. Tao-Rusyr CalderaTao-Rusyr Caldera Tao-Rusyr Caldera was the site of a massive volcanic eruption about 9000 years ago. What is a Maar?What is a Maar? What is a Maar? The second most common volcanic landscape feature on Earth. Solar SystemSolar System Volcanoes Solar System Volcanoes Earth is not the only location of volcanic activity.
Mount ClevelandMount Cleveland Mount Cleveland is an active volcano in the Aleutian Islands and a threat to air traffic. Dallol VolcanoDallol Volcano Dallol Volcano is one of the strangest landscapes on earth - at 269 feet below sea level. Galeras VolcanoGaleras Volcano Galeras Volcano The most active volcano in Colombia. Article by Jessica Ball. Redoubt VolcanoRedoubt Volcano Redoubt Facts, history, geology, hazards and plate tectonics of this Alaskan volcano.
CO2 Rich LavasCarbonatite Lava Flows: Carbonatite Lava Flows These carbon dioxide rich lavas are as fluid as motor oil. Lunar Rift Systemlunar rift system Lunar Rift System? Gravity maps revise the geologic history of the near side of the Moon.    

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