What caused Mount Etna to erupt?

Answer

Etna eruptions have been as result of change in structural stability of magma caused by tectonic movements. As of January 2012, Mount Etna in Italy was Europe's most active volcano. The mountain is 3,295m high.
Q&A Related to "What caused Mount Etna to erupt?"
It erupts because of the natural processes that take place. There are two main reasons for these eruptions to occur. One is the response of the volcano and its fracture systems to
http://wiki.answers.com/Q/What+are+the+causes+of+m...
what type of costs? Human lives, loss of crops, commerce? http://lmgtfy.com/?q=cost+of+Mt+Etna+166…. There are several links which answer the different costs. Source(s) http:
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Italy
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Sicilian.
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1 Additional Answer
Mount Etna is an active stratovolcano in which eruptions are not always the same. Most volcano open downward to a pool of molten rock beneath the earth's surface therefore when pressure piles up, eruptions occur. Gases and rock get discharge through the opening and spill or fill the air with lava fragments. This may be one of the cause of Mount Etna eruptions.
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