Self-Potential Studies in Volcanic Environments: A Cheap and Efficient Method for Multiscale Fluid-Flow Investigations

Figure 7

Soil temperature, self-potential, soil CO2 flux measurements, and electric resistivity tomography results of the multidata study carried out on the Stromboli volcano (Italy). At the location of a volcanic bomb impact crater from the March 15th 2007 paroxysmal eruption, we observe a clear maximum value for the self-potential, which correlates with the other measurements. This study uncovered shallow hydrothermal circulation which seems a common feature of active volcanoes. Figure from [5].