Institute for Geophysics, Jackson School of Geosciences, University of Texas at Austin

Professor of Physical Geography, University of Sheffield & Professor of Geology, UCLA

Professor of Geology and Seismology, University of Nevada, Reno

Physical Geography Professor, Porto University

Professor of Geology, University of Oregon

US Geological Survey

University of Washington

Research Geologist, US Geological Survey

Professor of Geophysics, University of Southampton

UNAVCO, Inc. and University of Texas at Arlington