Etna is the largest and most active volcano in Europe.

Mount Etna
Credit: Marco Restivo/Barcroft Images via Getty Images

Eruptions from Sicily's Mount Etna, Europe's largest active volcano, lit up the sky over the Italian island throughout the week, sending ash and lava into the mountains.

Mount Etna has been largely dormant for the past two years, and its eruption was particularly strong Monday, prompting delays in and out of the Catania airport.

Normal service at the airport resumed by Tuesday, the New York Times reported, citing Italian authorities. The eruptions no longer pose any immediate danger to the nearby towns.

Lava is still spewing down the mountain, however, and visitors should take caution if hiking in the area.

While Etna is an active volcano—producing on average enough lava per year to fill an 108-story skyscraper, according to National Geographic—the last devastating eruption took place in 1992. Earthen dams prevented lava from destroying the nearby town of Zafferana, but several homes, vineyards, and tracts of farm land were buried in the lava.