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Strong ash emissions, new lava fountaining episode at Etna volcano, Italy

etna voragine crater paroxysm july 23 2024

Image credit: INGV-OE

Strong Strombolian activity that started at Etna’s Voragine crater at 15:45 UTC on July 22, 2024, increased around 01:00 UTC on July 23 and evolved into a new lava fountaining episode at 02:59 UTC.

The eruption produced strong ash emissions, rising up to 4.6 km (15 000 feet) above sea level, according to Toulouse VAAC. In addition, INGV’s Etna Observatory reported that a lava overflow has started from the western rim of the Bocca Nuova crater.

From a seismic point of view, the average amplitude of the volcanic tremor has further increased with this activity. The sources of the tremor remained in the area of ​​the Voragine crater at an elevation of approximately 3 000 m (9 800 feet) above sea level.

“There is a further increase in frequency of occurrence and amplitude of infrasonic events at the Voragine crater,” INGV-OE volcanologists said at 03:08 UTC. “The amplitude of the infrasonic tremor is increasing.”

“Starting from around 02:00 UTC, the clinometric network shows clear variations, more evident at the summit stations. The Monte Ruvolo dilatometer has accumulated a decompression equal to approximately 10 nanostrain.”

The Aviation Color Code was raised to Red at 20:44 UTC on July 22 and remains at Red at the time of press.

References:

1 Etna volcano activity updates – INGV-OE – July 22 and 23, 2024

Teo Blašković founded The Watchers in 2011 and edited it until 2026, covering seismic and volcanic activity, extreme weather, space weather and near-Earth objects. Articles on this page are his archive.

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