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The study suggests that the inflation was caused by a magma intrusion between January 2011 and April 2012, and the volume of new magma that has accumulated beneath Santorini was estimated somewhere between 10 and 20 million cubic meters, about half the volume typically erupted during the latest eruptions in the 19th and 20th century.
http://www.volcanodiscovery.com/sant...-analyzed.html
Santorini is also known to take in rapid breaths of magma before its much more catastrophic explosive eruptions, such as the great eruption of 1650 B.C. that wiped out the Minoan civilization. Not to worry: those catastrophes occur only about once every 10,000 to 30,000 years
http://news.discovery.com/earth/volc...ni-120910.html
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