Mount Etna or Etna, is an active stratovolcano on the east coast of Sicily, Italy, in the Metropolitan City of Catania, between the cities of Messina and Catania. It lies above the convergent plate margin between the African Plate and the Eurasian Plate. It is the tallest active volcano in Europe, currently 3,329 m (10,922 ft) high, though this varies with summit eruptions. It is the highest peak in Italy south of the Alps. Etna covers an area of 1,190 km2 (459 sq mi) with a basal circumference of 140 km. This makes it by far the largest of the three active volcanoes in Italy, being about two and a half times the height of the next largest, Mount Vesuvius. Only Mount Teide in Tenerife (owned by Spain) surpasses it in the whole of the European–North-African region.

On 3 December 2015, an eruption occurred which climaxed between 03:20 and 04:10 local time. This was the first eruption in two years, sending a plume of volcanic ash scorching through the sky. The cloud was lit up with the astonishing sight of a "dirty thunderstorm", which causes lightning to streak through a cloud of ash.

Amiata elevation: 1,738 m (5,702 ft) - non active volcano

Vesuvius elevation: 1,281 m (4,203 ft) - active volcano

Stromboli elevation: 924 m (3,031 ft) - active volcano

Amiata is non active volcano and the second highest in Italy. Vesuvius is the second highest active volcano in Italy.

More Info: en.wikipedia.org