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News tagged with ash plume

Satellite images show eruption on Alaska volcano

(AP) -- A volcano on a remote Alaska island has begun erupting, but poses little danger to people or aircraft, officials said Tuesday.

Space & Earth / Earth Sciences

created Aug 10, 2011 | popularity 5 / 5 (1) | comments 0

Three active volcanoes spotted on satellite imagery from NASA

(PhysOrg.com) -- From space, NASA keeps a watchful eye on volcanic activity around the world with many satellites. NASA has just released satellite images showing activity this week from volcanoes in the countries ...

Space & Earth / Earth Sciences

created Jul 11, 2011 | popularity 4 / 5 (3) | comments 0 | with audio podcast

Satellite gallery shows Chilean volcano plume moving around the world

Since its eruption in early June, several NASA satellites have captured images of the ash plume from the eruption of the Chilean Volcano called Puyehue-Cordón Caulle and have tracked it around the world. ...

Space & Earth / Earth Sciences

created Jun 15, 2011 | popularity 5 / 5 (1) | comments 0

Chileans living near volcano urged to stay away

(AP) -- Chilean officials ordered most residents already evacuated from homes near an erupting volcano to stay in shelters and with family and friends Sunday due to the threat of deadly landslides. The ash ...

Space & Earth / Earth Sciences

created Jun 13, 2011 | popularity 5 / 5 (1) | comments 0

3 satellites see eruption of Puyehue-Cordon volcano from space

NASA's Terra Satellite, the GOES-13 and GOES-11 satellites all captured images of the ash plume from southern Chile's Puyehue-Cordón Volcano this week. The volcano is located in Puyehue National Park ...

Space & Earth / Earth Sciences

created Jun 06, 2011 | popularity not rated yet | comments 0

Iceland volcano eruption all but over: experts

The eruption of Iceland's Grimsvoetn volcano has tailed off and its ash plume has almost disappeared, experts and officials said on Wednesday, refusing though to declare the flight-disrupting incident closed.

Space & Earth / Earth Sciences

created May 25, 2011 | popularity not rated yet | comments 0

Satellites monitor Icelandic ash plume

(PhysOrg.com) -- As Iceland's Grímsvötn volcano spews ash high into the atmosphere, satellite observations are providing essential information to advisory centres assessing the possible hazards to ...

Space & Earth / Earth Sciences

created May 24, 2011 | popularity not rated yet | comments 0

Icelandic volcano flings up ash, shuts airport

(AP) -- Iceland closed its main international airport and canceled all domestic flights Sunday as a powerful volcanic eruption sent a plume of ash, smoke and steam 12 miles (20 kilometers) into the air.

Space & Earth / Earth Sciences

created May 22, 2011 | popularity 4 / 5 (1) | comments 0

Months of geologic unrest signaled reawakening of Icelandic volcano

Months of volcanic restlessness preceded the eruptions this spring of Icelandic volcano Eyjafjallajökull, providing insight into what roused it from centuries of slumber.

Space & Earth / Earth Sciences

created Nov 17, 2010 | popularity 5 / 5 (2) | comments 1 | with audio podcast

NASA's Aqua satellite catches glimpse of Russia's active volcanoes

NASA's Aqua satellite flew over the erupting Shiveluch Volcano in Russia yesterday and captured a visible image of its ash plume. Shiveluch is one of Russia's most active volcano and is currently spewing a ...

Space & Earth / Earth Sciences

created Oct 29, 2010 | popularity 4 / 5 (1) | comments 0

Electric ash found in Eyjafjallajokull's plume, say UK researchers

In the first peer-reviewed scientific paper to be published about the Icelandic volcano since its eruption in April 2010, UK researchers write that the ash plume which hovered over Scotland carried a significant ...

Space & Earth / Earth Sciences

created May 27, 2010 | popularity 5 / 5 (1) | comments 3 | with audio podcast

Second Iceland volcano could erupt in near future: experts

An Icelandic volcano neighbouring Eyjafjoell, whose eruptions paralysed Europe's skies last month, could come to life in the near future, according to experts.

Space & Earth / Earth Sciences

created May 26, 2010 | popularity 3.8 / 5 (16) | comments 1

UAF scientists collaborate to study Eyjafjallajokull lightning

For travelers in Europe, the recent eruption of Iceland's Eyjafjallajokull [AY-uh-fyat-luh-YOE-kuutl-uh] meant a major disruption in business and travel plans. For Alaska volcano researchers, the eruption has offered a chance ...

Space & Earth / Earth Sciences

created May 25, 2010 | popularity not rated yet | comments 0

NASA's Terra sees ash plume pulled to the northeast by a low

NASA's Terra satellite continues to provide visible and infrared imagery of Iceland's Eyjafjallajokull Volcano ash plume, and the most recent imagery showed the plume being pulled in a northeasterly direction ...

Space & Earth / Earth Sciences

created May 18, 2010 | popularity not rated yet | comments 0

Iceland volcano: Pitt researcher compiles first high-res images; plume receding but internal heat up

High-resolution visible and thermal infrared images captured by a joint NASA-Japanese satellite sensor and compiled by University of Pittsburgh volcanologist Michael Ramsey provide the first clear glimpse ...

Space & Earth / Earth Sciences

created Apr 23, 2010 | popularity not rated yet | comments 0

Eruption column

An eruption column consists of hot volcanic ash emitted during an explosive volcanic eruption. The ash forms a column rising many kilometres into the air above the peak of the volcano. In the most explosive eruptions, the eruption column may rise over 40 km, penetrating the stratosphere. Stratospheric injection of aerosols by volcanoes is a major cause of short-term climate change.

A common occurrence in explosive eruptions is for column collapse to occur. In this case, the eruption column is too dense to be lifted high into the air by air convection, and instead falls down the flanks of the volcano to form a pyroclastic flow or surge.

For more information about Eruption column, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.