Mt Etna is one the most active, most studied, and best monitored volcanoes in the world. In this seminar I will showcase my research investigations that encompass volcano petrology, field volcanology, and volcanic hazard assessment. First, I will present how the competition between gas retention and gas release prior to eruptions is modulated by CO2 concentration in the gas modulating the level of magma porosity prior to eruption. Second, I will show a new research investigation that aims to use the fallout pyroclastic tephra size and sphericity as good indicators to estimate the juvenile porosity promptly in the field and, evaluate the possible level of gas accumulation in the magma during an ongoing eruption. Last, I will present a novel work on the dispersion and accumulation of volcanic mercury around Mt Etna and the potential impact on the surrounding environment and communities.

*Refreshments: 10:30 AM - 11:00 AM (Atrium)