Volcanic unrest at Vulcano Island by hyperspectral remote sensing

Volcanoes are geodynamic systems strictly connected to a wide range of phenomena affecting their surroundings during both eruptive and unrest phases. Among these we focus on the degassing processes from fumarolic fields at Vulcano island. This represents the southernmost island of the Aeolian archipelago (Italy) that was recently affected by an unrest phase started in 2021. In this context, a significant increasing in degassing level around the island and in thermal energy release in the La Fossa cone was observed. Although the unrest period ended in 2022, the observed level of degassing remained higher than those measured prior to the unrest. The aim of this work is to identify the fumarolic field and its temporal evolution before, during and after the unrest phase. To this end, a series of measurement campaigns and fieldwork were conducted using different ground-based instruments, such as field spectroradiometer. Moreover, hyperspectral data were by spaceborne sensors, including ASI-PRISMA and DLR-ENMAP were acquired. In this work, the adopted methodology and obtained results are presented.