Ivan Granados, National Autonomous University of Mexico, volcanology, Ciudad DE Armería, Mexico, Marco Calo, National Autonomous University of Mexico, Mexico City, DF, Mexico, Angel Figueroa-Soto, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico, Mathieu Perton, UNAM National Autonomous University of Mexico, Morelia, Mexico and Philippe Jousset, Helmholtz Center GFZ, Potsdam, Germany