Mitch Keith D'Arcy, University of Potsdam, Potsdam, Germany, Taylor F. Schildgen, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, Jens Martin Turowski, Helmholtz Centre, German Research Centre for Geosciences (GFZ), Potsdam, Germany and Pedro N DiNezio, University of Texas at Austin, Institute for Geophysics, Austin, TX, United States