Etna volcano (Sicily, Italy) - Smithsonian / USGS Weekly Volcanic Activity Report for 1 February-7 February 2023 (Continuing Activity)

INGV reported that the vents at the NE base of Etna's SE Crater, in the Valle del Leone at about 2,800 m elevation, continued to feed lava flows during 30 January-5 February. The flow rate was highly variable with an increase on 1 February, a gradual decrease overnight during 1-2 February, and a complete cessation on the morning of 2 February. Later, during the afternoon of 2 February, lava again effused from the vent and traveled over pre-existing flows.
The effusion rate started to decrease in the afternoon of 4 February and progressively decreased overnight into 5 February. By the afternoon of 5 February, the flows appeared to be cooling.



Intense gas emissions rose from Bocca Nuova Crater while gas emissions at Northeast Crater (NEC) and Voragine were minimal. Activity at Southeast Crater was characterized by fumarolic activity localized along the crater rim and from the May-June 2022 eruptive vent which also occasionally produced flashes of incandescence at night. Occasional diffuse ash emissions were also visible and rapidly dispersed with the wind.

Source: Sezione di Catania - Osservatorio Etneo (INGV)
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From: Global Volcanism Program, 2023. Report on Etna. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 1 February-7 February 2023. Smithsonian Institution and US Geological Survey.