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Textbook Theory Behind Volcanoes May Be Wrong

Textbook Theory Behind Volcanoes May Be Wrong

Marcus Woo, California Institute of Technology In the typical textbook picture, volcanoes, such as those that are forming the Hawaiian islands, erupt when magma gushes out as narrow jets from deep inside Earth. But that picture is wrong,...

Latest Plate tectonics Stories

2014-09-09 12:20:43

The company's tours allow passengers to observe current lava flows from the air, including those in remote areas not open to the public. KAILUA-KONA, Hawaii, Sept. 9, 2014 /PRNewswire/ -- Big Island Air, Hawaii's oldest air tour company, is now offering tours that make it possible to observe dramatic views of Kiluaea's current lava eruptions from the air. The company's narrated "Twilight" and "Hilo Volcano" tours give passengers a unique perspective of the glowing lava below,...

2014-09-08 12:21:15

WASHINGTON, Sept. 8, 2014 /PRNewswire-USNewswire/ -- Scientists have found evidence of plate tectonics on Jupiter's moon Europa. This indicates the first sign of this type of surface-shifting geological activity on a world other than Earth. http://photos.prnewswire.com/prnvar/20081007/38461LOGO Researchers have clear visual evidence of Europa's icy crust expanding. However, they could not find areas where the old crust was destroyed to make room for the new. While examining Europa...

2014-08-28 12:34:31

ST. PETERSBURG, Fla., Aug. 28, 2014 /PRNewswire/ -- For over a week, earthquakes have threatened an eruption by Iceland's Bardarbunga volcano. Travelers who remember the Icelandic volcano eruption in 2010 are already turning to travel insurance to learn their options. To answer their questions, Squaremouth, America's fastest growing travel insurance comparison site, has launched The Icelandic Volcano and Travel Insurance Information Center. The comprehensive center includes official...

Hot Springs at Yellowstone
2014-08-28 07:45:13

April Flowers for redOrbit.com - Your Universe Online In 1883, a volcanic eruption in a small archipelago of the Dutch East Indies (now Indonesia) changed the world. The eruption and subsequent tsunamis caused by the Krakatau eruption resulted in over 36,000 deaths, including all 3,000 souls on the island. The ocean floor was altered, and temperature and weather patterns didn't return to normal for 5 years. And although the ash in the atmosphere produced spectacular sunsets, the lowered...

Citizen Scientists Safeguarding Communities Around The ‘Throat Of Fire’ Volcano
2014-08-25 03:28:11

University of East Anglia Citizen scientists are saving the lives of people living in the shadow of deadly volcanoes according to new research from the University of East Anglia. A new report published today reveals the success of a volunteer group set up to safeguard communities around the ‘Throat of Fire’ Tungurahua volcano in the Ecuadorian Andes. More than 600 million people live close to active volcanoes worldwide. The research shows that living safely in these dangerous...

2014-08-22 20:20:04

Observance of August 24 Pompeii Tragedy Sheds Light on California's Vulnerability LOS ANGELES, Aug. 22, 2014 /PRNewswire/ -- During a news conference held at the California Science Center, experts shared their perspectives on volcanoes and earthquakes in Southern California and the importance of being prepared. The event took place in Pompeii: The Exhibition, in a gallery that displays images of some of the world's active volcanoes. August 24 marks the anniversary of the Mt. Vesuvius...

New Insights Into Great Earthquake In Chile
2014-08-15 03:40:00

GFZ GeoForschungsZentrum Potsdam, Helmholtz Centre A long lasting foreshock series controlled the rupture process of this year's great earthquake near Iquique in northern Chile. The earthquake was heralded by a three quarter year long foreshock series of ever increasing magnitudes culminating in a Mw 6.7 event two weeks before the mainshock. The mainshock (magnitude 8.1) finally broke on April 1st a central piece out of the most important seismic gap along the South American subduction...

volcanic eruptions on Io
2014-08-05 04:32:03

April Flowers for redOrbit.com - Your Universe Online In August of last year, Jupiter's moon Io surprised astronomers with three massive volcanic eruptions within a two-week period. Two studies, accepted for publication in the journal Icarus, suggest that these volcanic "outbursts" might occur more commonly than previously thought. "We typically expect one huge outburst every one or two years, and they're usually not this bright," said Imke de Pater, professor and chair of astronomy at...

2014-06-16 09:57:20

European Association of Geochemistry Two studies show that the movement rate of plates carrying the Earth's crust may not be constant over time. This could provide a new explanation for the patterns observed in the speed of evolution and has implications for the interpretation of climate models. The work is presented today at Goldschmidt 2014, the premier geochemistry conference taking place in Sacramento, California, USA. The Earth's continental crust can be thought of as an archive...

An Ocean's Worth Of Water May Be Sitting In North American Mantle
2014-06-13 10:28:29

Brett Smith for redOrbit.com - Your Universe Online While all of Earth’s oceans may seem like more than enough water for one planet, a new study published in the journal Science has revealed an ocean’s worth of water may be sitting in the mantle, hundreds of miles below North America. According to the study, molecular water is stored away in a mineral called ringwoodite about 400 miles below the Earth’s surface. The study team said this stored water is sitting in a transition...


Latest Plate tectonics Reference Libraries

Mount Nyiragongo
2014-08-28 11:22:30

Mount Nyiragongo is an active stratovolcano that is located in the Democratic Republic of the Congo. This volcano is part of the Virunga Mountains and is located in Virunga National Park. It reaches an elevation of 11,385 feet and has a crater that reaches 1.2 miles in width. This crater typically holds a lava lake that has varied between 2,000 and 10,660 feet in depth. It is not known how long this volcano has been active, but at least 34 eruptions have been recorded since 1882. Mount...

2014-08-28 11:14:31

Nevado del Ruiz, also known as La Mesa de Herveo, is an active stratovolcano that is located along the border of the Colombian territories, or departments, of Caldas and Tolima. It reaches an elevation of 17,457 and is shaped like a cone. This volcano is protected within Los Nevados National Natural Park, along with many other volcanoes, and it is a popular tourist destination. Winter activities like skiing are conducted here as well as hiking and fishing. Nevado del Ruiz is part of the...

Galeras
2014-08-28 10:56:28

Galeras is a stratovolcano that is located in Nariño, a Colombian controlled territory. This volcano, which reaches a height of 14,029 feet, is highly active and the most active volcano in Colombia. It primarily contains andesite and holds two calderas that were created by eruptions in the past 560,000 years. Although it is shaped like a horseshoe, eruptions have caused a cone shaped structure to build up in one of the calderas. It was labeled a Decade Volcano in 1991, despite its recent...

Villarrica
2014-08-19 11:03:54

Villarrica, also known as Rucapillán, is an active stratovolcano that is located in Chile and is protected within Villarrica National Park. This volcano is one of five known volcanoes to have a lava lake within its crater and it often produces strombolian eruptions that contain lava flows and incandescent pyroclasts. It is one of three volcanoes that occur along the Gastre Fault Zone, along with the less active Quetrupillán and Lanín volcanoes. During the Valdivia Interglacial, it...

Hoodoo Mountain
2014-08-19 10:23:50

Hoodoo Mountain is flat-topped stratovolcano that is located in British Columbia, Canada and is part of the Northern Cordilleran Volcanic Province and the Pacific Ring of Fire. It is thought to be potentially active and was named for the needle like projections that protrude from it. These lava spines, or hoodoos, reach heights of 492 feet, making it the most distinct mountain in that area of the Boundary Ranges. Hoodoo Mountain is primarily flat-topped, which led volcanologist Jack Souther...

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Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.