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This is an archive of AGU's GeoSpace blog through 1 July 2020. New content about AGU research can be found on Eos and the AGU newsroom.

You are browsing the archive for volcano Archives - Page 2 of 5 - GeoSpace.

5 November 2015

The latest on magnetics

This is the latest in a series of dispatches from scientists and education officers aboard the Schmidt Ocean Institute’s R/V Falkor. The crew is on 36-day research trip to study Tamu Massif, a massive underwater volcano, located 1,500 kilometers (930 miles) east of Japan in the Shatsky Rise. Read more posts here.

We are currently mapping our last survey line on Tamu Massif, and we will soon be ready to head out. The planetary Kp index, used to characterize the magnitude of geomagnetic storms, says the magnetic field is a little unsettled.

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3 November 2015

End of days

This is the latest in a series of dispatches from scientists and education officers aboard the Schmidt Ocean Institute’s R/V Falkor. The crew is on 36-day research trip to study Tamu Massif, a massive underwater volcano, located 1,500 kilometers (930 miles) east of Japan in the Shatsky Rise. Read more posts here.

As the end of Magnetic Anomalies expedition draws near, we will soon complete our exploration over Tamu Massif, the World’s Largest Single Volcano.

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29 October 2015

3D images of magma below Mono Craters

A new conceptual model of the magma system below Mono Lake and Mono Craters in eastern California gives scientists a more detailed understanding of volcanic processes at depth and a better model for forecasting volcanic unrest. The accuracy and high resolution of the new three-dimensional images of the magma chambers and volcanic “plumbing” below Mono Basin give scientists a better understanding of their size, shape and where the next eruption might occur.

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22 October 2015

Studying Tamu Massif

We’re pleased to introduce a series of guest blog posts by Schmidt Ocean Institute’s Research team on their research vessel Falkor. Join us as we catch up with them and follow along on their expedition.

The Falkor is currently on a 36-day research trip. Her destination is Tamu Massif, a massive underwater volcano, located approximately 1500 kilometers (or 932 miles) east of Japan in the Shatsky Rise oceanic plateau. During their journey, researchers will focus on collecting bathymetric and magnetic data that could help clarify how Tamu Massif, possibly the world’s largest single volcano, was formed.

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20 July 2015

Warming slow-down not the end of climate change, study shows

A slow-down in global warming is not a sign that climate change is ending, but a natural blip in an otherwise long-term upwards trend, research shows.

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17 April 2015

Volcanic soundscapes reveal differences in undersea eruptions (+ video)

New research matching different types of underwater volcanic eruptions with their unique sound signatures could help scientists better detect and understand emissions occurring on the seafloor.

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22 December 2014

Picture Perfect and Water Wise: Images May Someday Predict the Hazards of Volcanic Gas

Earlier this year, superheated water within Japan’s Mount Ontake triggered a hydrothermal explosion. Scientists monitoring the volcano had seen no signs of impending danger. The resulting steam-triggered eruption killed 57 people. Clusters of earthquakes often precede major eruptions of lava and ash. The same is not true for smaller steam-triggered eruptions of gas like the Ontake event. But those are the sorts of events that Társilo Girona would like to predict, and he believes that cameras may be the key.

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16 December 2014

Scientists use satellites to monitor volcano risks

A NASA team utilized satellite data to create a map of past volcanic deposits and modeled the risk to nearby towns. They found one town on a potential lava flow path and a second town at risk for mud flows. The results were presented at Monday’s poster session at the American Geophysical Union’s Fall Meeting. The group’s methodology using satellite images can serve as a template for remotely assessing volcano risk, according to the researchers.

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30 September 2014

Up close and personal with a volcanic eruption

Thorbjorg Agustsdottir, a Ph.D. student studying seismology at the University of Cambridge, had the rare opportunity to witness a volcanic eruption up close when Iceland’s Bardarbunda volcano erupted while she and fellow researchers were servicing seismometer stations around the volcano.

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14 May 2014

Volcanic ash creates sticky situations for jet engines

WASHINGTON, DC — Thousands of airplane passengers were stranded in airports across Europe in 2010 when Iceland’s Eyjafjallajökull volcano spewed billions of cubic feet of volcanic ash into the sky. The large cloud of ash – enough to fill at least two football stadiums – threatened to clog jet engines and cause airline accidents.

But it is not just large volumes of volcanic ash that can cause problems for jet engines. Volcanic ash can melt when it gets inside the hot engine and even small amounts of the melted ash can do harm by coating the interior of turbines, interacting with protective coatings, or sticking to parts that cool the engine.

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