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Months of geologic unrest signaled reawakening of Icelandic volcano

19.11.2010
Monitoring volcanoes helps researchers understand the processes that drive them to erupt

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

An international team of researchers analyzed geophysical changes in the long-dormant volcano leading up to its eruptions in March and April 2010. In a study published in the Nov. 18 issue of the journal Nature, the scientists suggest that magma flowing beneath the volcano may have triggered its reawakening.

"Several months of unrest preceded the eruptions, with magma moving around downstairs in the plumbing and making noise in the form of earthquakes," says study co-author Kurt Feigl, a professor of geoscience at the University of Wisconsin-Madison. "By monitoring volcanoes, we can understand the processes that drive them to erupt."

Feigl's research was funded in part by the National Science Foundation through a RAPID award (Grant for Rapid Response Research).

More information on this work is available in the University of Wisconsin-Madison press release.

Maria C. Zacharias | EurekAlert!
Further information:
http://www.nsf.gov

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