A first seismic constraint of Pantelleria's shallowest crust (southern Italy): The 1D shear-wave velocity model

Pantelleria island is the southernmost active volcanic system in Italy and hosts intense hydrothermal activity associated with significant geothermal potential. To improve seismic monitoring and investigate the shallow crustal structure of the island a temporary seismic network, integrated with the permanent INGV stations, was deployed. In this study, we present the first 1D shear-wave velocity (Vs) model for Pantelleria Island down to ~1 km depth, based on ambient seismic noise analysis. Seismic array technique was applied to ambient noise recordings collected across the volcanic island. Stratigraphic information from deep wells, together with data from geophysical and geological surveys, was used to support the geological interpretation of the retrieved velocity model. The results provide new constraints on the shallow structure of Pantelleria and contribute to a better understanding of the dynamics of the volcanic-hydrothermal system. In addition the velocity model may improve earthquake localisation and support future studies of local seismicity potentially related to geothermal resources.