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Etna is an active stratovolcano located on the eastern coast of Sicily, near the cities of Messina and Catania. It is the highest active volcano in Europe. Now the height of Etna is 3329 m above sea level. It often changes from eruption to eruption. So, at present, the volcano is 21.6 m lower than it was in 1865. Etna is the highest mountain in Italy south of the Alps, it covers an area of 1,250 square kilometers. Thus, Etna is the largest active volcano in Italy, surpassing its nearest "rival" Vesuvius by more than 2.5 times.