The Etna expert, who has been watching the eruptions from his home in Tremestieri Etneo, said they are par the course for Etna’s ordinary activity.
He told The Guardian: “Etna is doing very normal things, even if each time everything seems bigger, stronger, more colourful and more threatening.”
Dr Behncke also took to Twitter to share video clips of the lava fountains.
A two-minute slow-motion video shows Etna spewing red-hot lava in the dead of night, bathing its smoke-covered summit in an eerie red glow.
In another tweet, he called Mount Etna the “most beautiful volcano on Earth.”