Mount Etna’s southeastern crater has grown in height after six months of activity, Italy’s volcano monitoring agency said on Tuesday. The famous volcano’s youngest and most active crater has risen to a new record of 3,357 metres (11,000 feet) above sea level, said INGV, the NationalInstitute for Geophysics and Vulcanology, based in the Sicilian city of Catania.

“Thanks to the analysis and processing of satellite images, [we can see] the southeast crater is now much higher than its ‘older brother’, the northeast crater, for 40 years the undisputed peak of Etna,” the INGV wrote in a press release. Some 50 episodes of ash and lava belching from the mouth of the crater since mid-February have led to a “conspicuous transformation of the volcano’s outline”, with its dimensions calculated through satellite images, it said.