Short answers, pulled from the story.
Volcanic activity first took place at Mount Etna about 500,000 years ago. Eruptions occurred beneath the sea off the ancient coastline of Sicily before volcanism began to the southwest of the summit about 300,000 years ago.
One view holds that the word Etna comes from the Greek meaning to burn while another suggests it derives from a Siculian dialect word meaning the fiery one. The volcano is also known as Mongibello in Sicilian and Italian which generally derives from the Romance word monte plus the Arabic word jabal both meaning mountain.
A particularly violent explosive summit eruption occurred in 122 BCE that caused heavy tephra falls to the southeast including the town of Catania. Many roofs collapsed there so the Roman government exempted the population of Catania from paying taxes for ten years to help with reconstruction.
Only 77 human deaths are attributable with certainty to eruptions of Etna since historical times. This figure stands despite widespread reports of up to 15,000 fatalities during the 1669 eruption where contemporaneous accounts written both in Italian and English mention no deaths related to the event.
A red alert issued for aviation authorities said the height of the volcanic cloud was estimated at 6.5 kilometers during the June 2025 eruption. Authorities have shut down the Catania airport on several occasions due to frequent eruptions and ash columns between January 2011 and February 2012.