Scientifically, my primary research areas encompass the study of Earth’s structure, both deep and shallow, employing body waves, surface waves, seismic noise polarization, correlation, and autocorrelation; intermediate-magnitude earthquake source investigations; numerical simulation of seismic wave propagation for imaging and shaking scenarios; and fully non-linear tomographic inversion. A defining characteristic of my research lies in the original utilization of seismic signals in all their forms, from earthquake signals to marine microseisms, along with the development of requisite techniques. Notably, my studies of the Earth’s core structure, as well as those of the upper mantle of the Euro-Mediterranean region and the geometry of seismic sources within the same geographical area, have had a profound impact on the scientific community. I have organized numerous advanced schools and imparted university courses in Earth Physics, Seismic Tomography, and Inverse Problem Theory. My salient scientific accomplishments are summarized below and are documented in my extensive publication list.