Dimitar Ouzounov received his PhD in Geophysics in 1990 at the Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, Moscow. Since October 2009 he has been an Associate Professor in Geophysics at the Center of Excellence in Earth Systems Modeling & Observations, Chapman University, Orange, CA. He became a guest investigator for two satellite missions to study electromagnetic signals from space in relation to earthquake and volcanoes - the French DEMETER (2004) and the Chines CSES1 (2017). He is the author of about two hundred papers and conference proceedings. He has also co-authored with Dr Pulinets two other books on pre-earthquake processes and on earthquake precursors in the atmosphere and ionosphere.