Antonio Parrinello / Reuters

Italy's volcanic Mount Etna spews lava during an eruption on the southern Italian island of Sicily on April 11, 2013. Mount Etna is Europe's tallest and most active volcano.

Antonio Parrinello / Reuters

Antonio Parrinello / Reuters

A round circle of smoke coming from the mouth of Etna is seen in the sky during an eruption on the southern Italian island of Sicily on April 11, 2013.

Antonio Parrinello / Reuters

Antonio Parrinello / Reuters

See more photos of Mount Etna's eruptions on PhotoBlog.

Antonio Parrinello / Reuters

Mount Etna spews volcanic ash during an eruption on the southern Italian island of Sicily on Jan. 5, 2012. Mount Etna is Europe's tallest and most active volcano.

Mount Etna erupted on Thursday for the first time in 2012, forcing the temporary closure of Sicily's busiest airport, the Italian news agency ANSA reports. Europe's tallest active volcano spewed spectacular fountains of lava and sent up a plume of black smoke rising 5,000 meters (16,400 feet) above sea level. That prompted authorities to limit air traffic to Sicily's Catania Airport until midday, ANSA reported. Etna erupted 18 times during 2011, according to Italy's National Institute of Geophysics and Volcanology. 

See more volcano eruptions on PhotoBlog.