Yu Jeffrey Gu joined the physics Faculty in 2004. His main research area is earthquake seismology, focusing both on seismic sources and on crust and mantle structures. He has contributed to the understanding of induced earthquakes in connection with industrial activities. He also maintains long-standing interests in array methods and numerical analysis of ultrasound signals. He co-manages the Canadian Rockies and Alberta Network (CRANE), the first broadband seismic array in Alberta, with the Alberta Geological Survey.