Apparently Twitter is becoming very dangerous. What was that eruption that forced the Catania airport to close?

"Airport authorities announced that flights would be suspended until Monday 9 a.m. local time (3 a.m. ET) due to the fallout from the eruption on Twitter"

https://edition.cnn.com/travel/article/mount-etna-eruption-sicily-flight-cancellations-scli-intl/index.html