Prof. Dr. Theofilos Toulkeridis received the title of Ph.D. in natural sciences (geology and isotope geochemistry) summa cum laude in 1996 at the Johannes Gutenberg University, Mainz, Germany, and a Master's degree in geology and paleontology in 1992 at the same university. He spent three years in post-doctorate studies at the Max Planck Institute of Chemistry in the geochemistry division, in conjunction with the Center for Surface Geochemistry (CNRS), in Strasbourg, France, until 1999. From 1999 to the end of 2010, he served as a senior lecturer at the Polytechnic of the San Francisco de Quito University in Cumbayá, Ecuador, and since the beginning of 2011, in the Department of Earth Sciences and Construction at the University of the Armed Forces ESPE in Sangolquí, Ecuador. He is also a UNESCO commissioner in the areas of natural hazards, global change, and geodynamics and a member of the Geoethics Chapter of Ecuador. His areas of interest include geology, geodynamics, hazards, volcanoes, earthquakes, tsunamis, caves, and speleology.