New insights on the active degassing system of the Lipari-Vulcano complex (South Italy) inferred from Local Earthquake Tomography.

ABSTRACT: Seismic tomography is a very powerful and effective approach to look at depths beneath volcanic systems thus helping to better understand their behaviour. The P-wave and S-wave velocity ratio, in particular, is a key parameter useful to discriminate the presence of gas, fluids and melts. We computed the first 3-D overall model of Vp, Vs and Vp/Vs for the Lipari-Vulcano complex, central sector of the Aeolian volcanic archipelago (southern Italy). The investigated area has been characterized in recent times by fumaroles, hydrothermal activity and active degassing. In particular, in the Vulcano Island, several episodes of anomalous increases of fumarole temperature and strong degassing have been recorded in the past decades and the last "crisis", started in September 2021, is still ongoing. F

SUBMITTER: Totaro C 

PROVIDER: S-EPMC9640725 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature