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Latest Volcanology Stories

Earth's Origins May Be Explained Through Mantle's 'Hidden Flux'
2013-07-17 14:46:32

Brett Smith for redOrbit.com - Your Universe Online One of the more popular theories surrounding the formation of the planets involves the countless collisions of smaller objects in orbit around the sun 4.5 billion years ago. However, proponents of that theory are missing one thing: the Earth's chemical composition is distinctly different from the meteors that are currently striking the planet. Scientists have found that the lead-uranium ratio of meteors is much different than that of...

Volcanoes Like To Scream Out Before They Blow Their Lids
2013-07-15 13:47:55

Brett Smith for redOrbit.com - Your Universe Online Scientists often detect a series of small earthquakes just before a volcanic eruption and a new study published in the Journal of Volcanology and Geothermal Research has shown that these tremors can happen in such a rapid succession -- that they create sound vibrations that rise in pitch until the volcano erupts. The study authors came to their conclusion by looking at the March 2009 eruption of Alaska's Redoubt Volcano, which was...

Corn Syrup Model Predicts Yellowstone Geophysical Behavior
2013-07-15 11:07:37

Brett Smith for redOrbit.com - Your Universe Online In an experiment that could be described as a science fair exhibit on steroids, researchers from Australia and the United States have created a model explaining the geophysical processes occurring in the Pacific Northwest using corn syrup, fiberglass and a series of pistons. Before computer models were generated using state-of-the-art processing power, scientists relied on simple models made from everyday materials. According to the...

Global Distribution Of Sulfur Particles Following Large Eruptions Modeled By GEOMAR Researchers
2013-07-08 10:29:07

GEOMAR Helmholtz Centre for Ocean Research Kiel How severely have volcanoes contaminated the atmosphere with sulfur particles in past millennia? To answer this question, scientists use ice cores, among others, as climate archives. But the results differ, particularly in some major volcanic major events of the past, depending on whether the cores come from Antarctica or Greenland. Atmospheric scientists from the GEOMAR Helmholtz Centre for Ocean Research Kiel and the Max Planck Institute...

ESA Images Mars Largest Volcano
2013-07-05 12:20:47

Brett Smith for redOrbit.com - Your Universe Online Recently released images from the European Space Agency's (ESA) Mars Express revealed new details of the largest known volcano in our solar system, Olympus Mons. The inactive Martian volcano rises to approximately 22,000 feet above the surrounding plain, which is more than twice the height of Earth's 10,000-foot high Mauna Kea volcano. Like Mauna Kea, Olympus Mons is a shield volcano, with gently sloping sides that extend outward in...

American Museum Of Natural History To Preserve Lonesome George
2013-07-03 11:50:35

Lee Rannals for redOrbit.com - Your Universe Online Lonesome George, a 100-year-old giant tortoise that once lived on the Galapagos Islands, is going to be preserved by the American Museum of Natural History in New York City. Scientists made the surprising discovery of Lonesome George on Pinta Island in 1972. They had thought his species, Geochelone nigra abingdoni, was already extinct before then. The famous tortoise passed away in June 2012, found lifeless near his favorite watering...

Human Influences Endangering Galapagos Sea Lions
2013-07-01 09:35:06

Brett Smith for redOrbit.com - Your Universe Online Like all biological functions, the immune system places demands on an organism and a new study in the journal PLoS ONE has found the highly active immune systems of some endangered Galapagos sea lions are stressing the animals to the point of starvation. In the study, the researchers compared two sea lion populations living within the archipelago: those near the human populated Islands of San Cristobal and those living by the...

Two Alaskan Volcanoes Release More Energy, Stronger Eruptions Ongoing
2013-06-26 09:20:55

Lawrence LeBlond for redOrbit.com - Your Universe Online Two of three active Alaskan volcanoes have shown a sizeable increase in activity since first erupting weeks ago, according to the Alaska Volcano Observatory (AVO). AVO warned the Pavlof and Veniaminof volcanoes could become even more active in the future. For now, both volcanoes have been spewing lava and ash into the atmosphere, with at least one of the two peaks disrupting local air traffic. Pavlof, an 8,000-foot,...

2013-06-19 12:03:30

Each of the six new papers published in Geosphere on 13 June address geoscience compiled in specially themed issues: CRevolution 2: Origin and Evolution of the Colorado River System II; The 36—18 Ma southern Great Basin, USA, ignimbrite province and flareup: Swarms of subduction-related supervolcanoes; New Developments in Grenville Geology; and Origin and Evolution of the Sierra Nevada and Walker Lane. Abstracts for these and other Geosphere papers are available at...


Latest Volcanology Reference Libraries

Irazú Volcano
2014-10-04 18:35:23

Irazú Volcano, known as Volcán Irazú in Spanish, is an active stratovolcano that is located in Costa Rica. The origin of the volcano’s name is unknown, but it is thought to be a variant of the word Iztarú, which is the name of a village that was near the volcano, or a mixture of the words ara, meaning point, and tzu, meaning thunder. It is locally known as The Colossus due to large past eruptions. This volcano is located within Irazú Volcano National Park, which holds montane forests...

Rincón de la Vieja
2014-10-04 18:29:11

Rincón de la Vieja is an active complex volcano that is located in northwestern Costa Rica. Its name, meaning The Old Woman's Corner, refers to a legend that says that a woman’s lover was thrown into the volcano by her father, after which she lived on the volcano as a recluse. This volcano reaches 6,286 feet in elevation and is the tallest volcano in Rincón de la Vieja Volcano National Park. Visitors were once permitted to climb up to the crater, but a recent eruption caused this area to...

Chimborazo
2014-10-04 18:25:34

Chimborazo is an inactive stratovolcano that is located in Ecuador and is part of the Cordillera Occidental range of the Andes. This volcano reaches an elevation of 20,564 feet and although it is not the tallest mountain measured above sea level, its proximity to the equator makes its summit the farthest away from the center of the earth. The origin of its name is unknown, but it could have received its name from several words in the Quichua or Quechua language or from the Cayapa language....

Cotopaxi
2014-10-04 18:16:10

Cotopaxi is an active stratovolcano that is located in Ecuador and is part of the Pacific Ring of Fire. This volcano, reaching an elevation of 19,347 feet above sea level, is the second tallest volcano in Ecuador and one of the tallest active volcanoes in the world. The origin of its name is unknown, but some sources say that it means Neck of the Moon in the language of the indigenous people and it has been considered sacred in their culture. Cotopaxi is shaped like a cone that is almost...

Mount Hudson
2014-10-04 18:07:58

Mount Hudson, also known as Volcán Hudson, is an active stratovolcano that is located in southern Chile, named after 9th-century Chilean Navy hydrographer Francisco Hudson. Its summit, which is covered in glaciers, holds a caldera that was created from a large eruption that occurred in 4750 BCE or 1890 BCE. Based on evidence found at the Los Toldos archaeological site, it is thought that the early eruption destroyed most settlements in the area at that time. Modern eruptions occurred in...

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Word of the Day
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.