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.The first days of April 2021 a new station was installed in a small lava cave, exhaling water vapor and carbon dioxide, located at the Stromboli active volcano in the Aeolian archipelago (Italy). The cave opens inside the Vallonazzo, a steep and sharp valley following a tectonic lineament on the north-eastern flank of the volcano, characterized by a peculiar, permanent mild explosive activity (strombolian activity), occasionally interrupted by much more energetic events (major explosions and paroxysms). The station is equipped with a capacitive volumetric soil moisture content sensor and a temperature probe. The aim is detecting possible anomalies during geomagnetic storms, generating Geomagnetically Induced Currents (GICs), which could be recorded by the capacitive sensor that is electrically coupled to the soil. The monitoring station is located along an electric “corridor”, connecting the Earth’s interior to the atmosphere, generated by the continuous flux of water vapor outgassed from the magma standing in the shallower section of the magmatic plumbing system.