John Michael Hamilton, University of New Mexico Department of Earth and Planetary Sciences, Albuquerque, NM, United States, Tobias P Fischer, University of New Mexico, Department of Earth and Planetary Sciences, Albuquerque, NM, United States, Dawnika L Blatter, USGS, Menlo Park, CA, United States, Robert J Bodnar, Virginia Tech, Blacksburg, VA, United States, Lowell Moore, Virginia Polytechnic Institute and State University, Department of Geosciences, Blacksburg, VA, United States and Armando Saballos, Instituto Nicaragüense de Estudios Territoriales, Managua, Nicaragua