• 2013 Inge Lehmann Medal

In the post–plate tectonics world, efforts to map the structure of Earth's interior broadened to include a growing preoccupation with the underlying dynamics. Students of global geophysics recognize the important role that previous recipients of the Inge Lehmann Medal played in this effort, but they would also understand the reasons that Bradford Hager of the Massachusetts Institute of Technology must be included in this honored list. Brad has been a central figure in mantle dynamics for the last 30 years, responsible for many fundamental advances in our understanding of mantle structure and flow and their connection to the geological record.