title: Spatially resolved SO2flux emissions from Mt Etna.
abstract: We report on a systematic record of SO2flux emissions from individual vents of Etna volcano (Sicily), which we obtained using a permanent UV camera network. Observations were carried out in summer 2014, a period encompassing two eruptive episodes of the New South East Crater (NSEC) and a fissure-fed eruption in the upper Valle del Bove. We demonstrate that our vent-resolved SO2flux time series allow capturing shifts in activity from one vent to another and contribute to our understanding of Etna's shallow plumbing system structure. We find that the fissure eruption contributed ~50,000 t of SO2or ~30% of the SO2emitted by the volcano during the 5 July to 10 August eruptive interval. Activity from this eruptive vent gradually vanished on 10 August, marking a switch of degassing toward the NSEC. Onset of degassing at the NSEC was a precursory to explosive paroxysmal activity on 11-15 August.
authors: DiSTeM Università di Palermo Palermo Italy.
authors: R
authors: R
authors: D'Aleo
authors: DiSTeM Università di Palermo Palermo Italy.
authors: M
authors: M
authors: Bitetto
authors: DiSTeM Università di Palermo Palermo Italy.
authors: D
authors: D
authors: Delle Donne
authors: DiSTeM Università di Palermo Palermo Italy.
authors: G
authors: G
authors: Tamburello
authors: DiSTeM Università di Palermo Palermo Italy.
authors: A
authors: A
authors: Battaglia
authors: Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania Catania Italy.
authors: M
authors: 0000-0001-7868-3946
authors: M
authors: Coltelli
authors: Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania Catania Italy.
authors: D
authors: D
authors: Patanè
authors: Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania Catania Italy.
authors: M
authors: M
authors: Prestifilippo
authors: Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania Catania Italy.
authors: M
authors: M
authors: Sciotto
authors: DiSTeM Università di Palermo Palermo Italy; Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Palermo Palermo Italy.
authors: A
authors: A
authors: Aiuppa
keywords: Etna; SO2 cameras; volcanic SO2 flux; volcanic degassing; volcanic gases