4D gravity-geodesy – An integral part of comprehensive monitoring and modelling of large silicic magmatic systems
Prior to a volcanic eruption, volatile-rich magma and gases can accumulate deep within the volcano and migrate upward interacting with associated hydrothermal systems. This movement can lead to pressurisation and fracturing within the volcanic plumbing system, generating characteristic precursory seismic signals and volumetric changes as the volcanic edifice inflates.