Dr. O'Ghaffari joined Matěj Peč’s research group as a Postdoctoral Associate in June 2017 and became a Research Scientist in 2021. He finished his PhD from the department of Civil Engineering at the University of Toronto in 2014. From 2009 to 2010, he was a research assistant at University of Ottawa studying coupled process (THM) and gas propagation in deep geological repositories. From 2010 to 2015, he worked in Paul Young’s lab at University of Toronto, mainly on ultrasound probes of fractured rocks under different conditions of stress and temperatures, including micro-mechanisms in true triaxial tests, rupture mechanism and dynamic loading tests. He was a post-doc from 2015-2017 in W. A. Griffith’s lab at the University of Texas, working on the response of materials under dynamic loading and out-of-equilibrium physics of micro-cracks with excited acoustic signals. His current research includes study of acoustic phonon emissions to analyze the physics of partly molten rocks and lattice preferred orientations akin to mechanisms in upper mantle and with applications on deep-earthquake faulting.