6533b7d5fe1ef96bd126492c

RESEARCH PRODUCT

Periodic volcanic degassing behavior: The Mount Etna example

E. P. KantzasAndrea CannataGaetano GiudiceAndrew J. S. McgonigleAndrew J. S. McgonigleP. AllardP. AllardGiancarlo TamburelloAlessandro AiuppaAlessandro AiuppaTom D. Pering

subject

Gas bubble010504 meteorology & atmospheric sciencesPeriod (periodic table)Mount Etna; periodic gas flux; UV camera; volcanic tremor; Geophysics; Earth and Planetary Sciences (all)InfrasoundFluxUV camera010502 geochemistry & geophysics01 natural sciences0105 earth and related environmental sciencesgeographygeography.geographical_feature_categorySpectral propertiesGeophysicsvolcanic tremorMountMount Etna; periodic gas flux; UV camera; volcanic tremor; Earth and Planetary Sciences (all); GeophysicsGeophysicsVolcano13. Climate actionGeneral Earth and Planetary SciencesMount EtnaImaging techniqueperiodic gas fluxMount Etna; periodic gas flux; UV camera; volcanic tremorEarth and Planetary Sciences (all)GeologySeismology

description

[1] In contrast to the seismic and infrasonic energy released from quiescent and erupting volcanoes, which have long been known to manifest episodes of highly periodic behavior, the spectral properties of volcanic gas flux time series remain poorly constrained, due to a previous lack of hightemporal resolution gas-sensing techniques. Here we report on SO2 flux measurements, performed on Mount Etna with a novel UV imaging technique of unprecedented sampling frequency (0.5Hz), which reveal, for the first time, a rapid periodic structure in degassing from this target. These gas flux modulations have considerable temporal variability in their characteristics and involve two period bands: 40–250 and 500–1200s. A notable correlation between gas flux fluctuations in the latter band and contemporaneous seismic root-mean-square values suggests that this degassing behavior may be generated by periodic bursting of rising gas bubble trains at the magma-air interface. Citation: Tamburello, G., A. Aiuppa, A. J. S. McGonigle, P. Allard, A. Cannata, G. Giudice, E. P. Kantzas, and T. D. Pering (2013), Periodic volcanic degassing behavior: The Mount Etna example, Geophys. Res. Lett., 40, 4818–4822, doi:10.1002/grl.50924.

yearjournalcountryeditionlanguage
2013-01-01
10.1002/grl.50924http://hdl.handle.net/11391/1389467