EtnaUpdater @EtnaUpdater@qoto.org

Short update - Mt Etna, Sicily - 14.02.2025

On 14 February, effusive activity continued at the southern base of the Central Crater cone. The lava flow on the south-west flank of the mountain has reached an elevation of approx. 1900 m in the Galvarina area and is approx. 3 km long. The tremor is still at a high level. Since 12 February, the old South-East Crater has been emitting strong and persistent ash and showed mild strombolian activity. A new vent, which had developed during the eruption on the upper north-western flank of the old South-East Crater, released steam, gas and some dark ash as well as occasionally some incandescent material from 11 February onwards.

#Etna #vulcano #eruption

This INGV webcam photo, taken on the evening of 13 February, shows the lava flow on the left, which flows down the southern flank in a south-westerly direction. The interaction with the snow cover produces a lot of water vapour, which is illuminated by the lava flow. On the right, a small strombolian explosion can be seen at the South-East Crater:

Short update - Mt Etna, Sicily - 08.02.2025

As reported by INGV, the emission of a lava flow was observed this evening at 18:35 at the south-eastern base of Mt Etna's summit crater Bocca Nuova. The lava flow originates from a point at an altitude of 3000 metres between Bocca Nuova and the Southeast Crater complex and is moving towards Monte Frumento Supino.
As further reported, mild explosive activity had already occurred temporarily at the Southeast Crater on 6 February. Today the tremor was at a medium level with fluctuations. The source of the tremor was below the Southeast Crater at an altitude of 2800 - 3000 metres. The infrasound activity was very low today, while it was moderate on the previous days and emanated from the Southeast Crater. Only a very small deformation of the volcanic edifice was measured (tenths of a microradian at Cratere del Piano station).

In this context, it is interesting to note that a new thermal anomaly was detected today during the overflight of the Sentinel-2 satellite. It was located on the upper eastern flank of Bocca Nuova. It is possible that a new vent has opened there that either only emitted hot gas or has developed into the effusive vent that feeds the new lava flow.

#Etna #vulcano #eruption

This INGV webcam photo from this evening shows the situation at the southern base of Bocca Nuova or the Central Crater cone. Two glowing areas can be seen in the left half of the image, which mark the course of the lava flow. The upper, more easterly section of the lava flow probably lies behind the lava fields of the South East Crater and is therefore presumably obscured:

https://bsky.app/profile/borisetneo.bsky.social/post/3lga5gsczes2w

Short update - Mt Etna, Sicily - 31.12.24

Since mid-November, there has been calm gas emission at the summit craters of Mt Etna, which is mainly concentrated on the Voragine and the New South East Crater.

Previously, the 7th paroxysm of 2024 had occurred at Voragine on 10 November. The summit crater produced lava fountains during very bad weather conditions and released a short lava flow. Ash fell on the villages on the eastern flank of Mt Etna. In July and August, the paroxysmal episodes of the Voragine produced lava fountains up to 1000 metres high and the ash rain led to the closure of Catania's international airport on several occasions. A new intracrater cone grew in the Voragine and the lava flows buried the crater of the Bocca Nuova and flowed down the south-western to western flank of the Central Crater cone. As a result of this violent activity, the Voragine grew in height and became the highest point of the mountain at 3404 metres.

#Etna #volcano

This INGV webcam photo from the morning of 26 December shows the New South East Crater in the centre of the image, which continues to emit gas. To the right above the South East Crater, you can see the Voragine, which continues to emit gas. To the right is the Northeast Crater, which is currently emitting a white vapour cloud: