Mount Etna's latest eruption has grounded all flights at Catania Airport in Sicily for a third consecutive day, with operations suspended until 11.59pm tonight (September 28). The volcano emitted a 4-kilometre ash cloud over the weekend, prompting the airport to halt all departures and arrivals.
Red Alert and Airspace Closures
The ash cloud, which originated from the north-east crater, has been moving towards Catania, forcing the closure of two airspace sectors. A red flight warning—the highest level on a four-point scale—is currently in force following the eruption.
Passengers flying to and from Catania Airport have been advised to check the status of their flights before travelling to the airport, according to The Express. Several flights have already been cancelled, including services to and from UK destinations.
Why Volcanic Ash Is Dangerous for Aircraft
Volcanic ash poses a serious threat to aircraft, which is why eruptions often lead to widespread cancellations even when airports are not directly threatened by lava. The tiny, abrasive particles can be sucked into jet engines, where they can damage components and potentially cause engines to lose power.
Ash can also interfere with aircraft instruments, reduce visibility, and make runways more slippery, particularly when wet. The US Federal Aviation Administration (FAA) warns that flying into a volcanic ash cloud can be “exceedingly dangerous” and emphasises that avoiding encounters with ash is the most important precaution.
Challenges in Detecting Ash Clouds
Volcanic ash clouds are often difficult for pilots to spot and are not normally detected by airborne or air traffic control radar, adding to the risk. The ongoing disruption at Catania Airport highlights the broader impact of volcanic activity on air travel, with passengers urged to stay informed about their flight status.
