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Volcanoes and Volcanic Eruptions

Volcanic ExplosivityVolcanic Explosivity Volcanic Explosivity Rating volcanic eruptions based upon the volume of tephra ejected. Geology ToolsGeology Tools Geology Tools - Rock hammers, field bags, hand lenses, maps, hardness picks, gold pans. Types Of EruptionsTypes Of Eruptions Types of Volcanic Eruptions A description of the most common eruption types. Dangerous VolcanoMount Rainier Mount Rainier A dangerous volcano with a history of deadly lahars and pyroclastic flows.
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. 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.
Mount EtnaMount Etna Mount Etna The most active volcano in Europe, continues an eruption that started in 2001. Pavlof VolcanoPavlof Volcano Pavlof Volcano is one of the most active volcanoes in North America and a threat to air traffic. 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.
Igneous RocksIgneous Rocks Igneous Rocks Descriptions and photos of common igneous rocks. Hawaiian Hot SpotHawaiian Hot Spot How did the Hawaiian Islands Form? The power of a moving plate over a stationary hot spot. Chaiten VolcanoChaiten Volcano Chaiten Volcano Geology, history and facts about this explosive volcano. Wrong Volcano?Novarupta The most powerful eruption of the 20th century was blamed on the wrong volcano.
Stromboli VolcanoStromboli Volcano Stromboli Volcano Geology, history, maps, plate tectonics and more. Blue Flamesblue flames Blue Flaming Sulfur Flows and the largest highly acidic lake in the world at Kawah Ijen Volcano. CalderasCalderas Calderas are large volcanic craters formed by some of Earth\'s largest eruptions. Mars VolcanoOlympus Mons Olympus Mons The largest volcano in the solar system is on Mars.
Teaching TectonicsTeaching Tectonics Teaching Plate Tectonics Students enjoy learning with easy-to-draw illustrations. Santa Maria VolcanoSanta Maria Volcano Santa Maria A volcano in Guatemala. Produced one of the largest eruptions of the 1900s. Volcanic AshVolcanic Ash Volcanic Ash Learn about volcanic ash, volcanic dust and their impacts. Great Rift ValleyGreat Rift Valley The East Africa Rift System Volcanics and tectonics of this active rift system.
Eruption PhotosEruption Photos Spectacular Eruption Photos A collection of volcanic eruption photos by USGS, NASA, NOAA. Galeras VolcanoGaleras Volcano Galeras Volcano The most active volcano in Colombia. Article by Jessica Ball. Dallol VolcanoDallol Volcano Dallol Volcano is one of the strangest landscapes on earth - at 269 feet below sea level. Arenal VolcanoArenal Volcano Arenal Volcano Geology, history, hazards, plate tectonics and more.
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. Tao-Rusyr CalderaTao-Rusyr Caldera Tao-Rusyr Caldera was the site of a massive volcanic eruption about 9000 years ago. Volcanoes on Venus?Volcanoes on Venus Volcanoes on Venus? The surface of Venus is covered by lava flows and shield volcanoes.
HeleniteHelenite Helenite is a man-made glass produced by fusing ash from the 1980 Mount St. Helens eruption. CO2 Rich LavasCarbonatite Lava Flows: Carbonatite Lava Flows These carbon dioxide rich lavas are as fluid as motor oil. Volcanic LightningVolcanic Lightning Redoubt Volcano Lightning Photographs of lightning in the Redoubt Volcano ash cloud. Mount ClevelandMount Cleveland Mount Cleveland is an active volcano in the Aleutian Islands and a threat to air traffic.
Redoubt VolcanoRedoubt Volcano Redoubt Facts, history, geology, hazards and plate tectonics of this Alaskan volcano. 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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