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Volcanoes and Volcanic Eruptions

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


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