Mount Etna is an active volcano located in Italy. It is the tallest volcano in the European Continent. This volcano towers high at 10,922 feet and covers 459 square miles. Mount Etna is one of the most active volcanoes in the world. Geologists consider Mount Etna to be a stratovolcano. This means it is a composite cone that rises dramatically to a relatively small summit center. They are considered the most dangerous due to their highly explosive eruptions. The last eruption happened in the summer of 2014.