Europe's highest active volcano asserts itself once more. Mt. Etna in Sicily is shaken by violent explosions that hurl tons of rock and lava in the worst eruption of Etna in 50 years. Sicily, Italy A very formidable Mount Etna, spewing smoke, fire and ash. Looking into the crater - You see nothing but smoke and most likely molten lava. MCUS - Stream of molten lava running down the side of Mount Etna, and it's moving at a pretty good amount of speed. LS - Clouds surrounding Mount Etna, and Etna is spewing smoke, and spitting out molten rock and lava.