Mount Etna erupts as large plumes rise from Italian volcano
Italy's Mount Etna has erupted, with large plumes of ash and smoke seen rising from the volcano.Images and video from the island of Sicily showed volcanic material spilling out of the volcano on Monday morning.A number of explosions of "increasing intensity" were recorded in the early hours on Monday morning, Italy's National Institute of Geophysics and Volcanology (INGV) Etna Observatory said.The full scale of the eruption is currently unclear and disruption appears to be minimal.Mount Etna is one of the world's most active volcanoes, so eruptions are not uncommon and its outbursts rarely cause significant damage or injury.
Ground movements indicated latest eruption happened on the south eastern edge of the volcano, according to INGV. This appears to be where a known 200m-wide vent is.Footage shared throughout Monday shows a rapidly moving mix of ash, gas and rock - known as a pyroclastic flow - emerging from the site and moving down the side of the volcano.Geologists monitoring the eruption said it was likely that part of volcano's crater collapsed and that this was the material being carried down its slopes. Pyroclastic flow can be very dangerous to the surrounding area, but there has been no indication of an imminent threat.In its most recent update, INGV noted that the volcanic material had not yet gone past the Valley of the Lion, the point on the approach to the summit where tourist trips stop.INGV said it first recorded changes in the volcano's activity at 00:39 local time (22:39 GMT), before clarifying that there was an ongoing "Strombolian" eruption.The size of Strombolian eruptions can vary but are often characterised by intermittent explosions, which occur due to the presence of gas in the magma chamber within the volcano. When the gas bubbles reach the surface, they can burst suddenly, throwing material skywards. The process is not dissimilar to letting gas out of a fizzy drink.These types of eruptions can be particularly dangerous for nearby aircraft.A red alert was reportedly issued earlier on Monday, possibly suspending flights operating nearby, but this was later downgraded.Mount Etna's last notable eruption came in February and caused the island's Catania airport to divert dozens of flights because of ash clouds.Tourists were also warned to stay away from the volcano's lava flows.
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