Stephen B DeLong, Ph.D.


I am a Supervisory Research Geologist in the USGS Earthquake Science Center. My primary focus is characterizing earthquake hazard in northern California. To do this I apply fieldwork, geochronology, terrestrial and airborne LiDAR, and a range of quantitative methods to zones of active crustal deformation. My broader expertise includes tectonic, hillslope and fluvial geomorphology, and I have applied these to interdisciplinary problems including earthquake hazard, landscape development, landsliding, ecological restoration, post-wildfire landscape change, coupled Earth systems experimentation, and the effects of flash floods and other active processes on the Earth's surface.

Ph.D. University of Arizona, Tucson AZ, 2006, Geosciences
B.S. University of Minnesota Duluth, Duluth MN, 1997 cum laude Major: Geology; Minor: Chemistry 

Professional Summary

U.S. Geological Survey, Earthquake Science Center, Supervisory Research Geologist,  2016 – 

U.S. Geological Survey, Earthquake Science Center, Research Geologist, 2013 – 2016 

University of Minnesota, Department of Earth Sciences, Graduate Faculty, 2016 - present

University of Arizona, Biosphere 2, Assistant Research Professor and Biosphere 2 Landscape Evolution Observatory lead scientist, March 2010 – February 2013

University of Arizona, Department of Geosciences, Assistant Research Professor (Joint), March 2010 – present

United States Geological Survey Mendenhall Postdoctoral Fellow, USGS Earthquake Science Center- Menlo Park, CA, October 2008 - August 2010

Postdoctoral Research Associate, Arizona State University, Tempe, AZ, Aug 2007-October 2008

Visiting Assistant Professor, Cornell College, Mount Vernon, IA, August 2006-May 2007

Research Assistant, Los Alamos National Laboratory, 2005-2006 Yucca Mountain Project Igneous Hazards Team

Teaching/Research Assistant, University of Arizona, Tucson, AZ, 2002-2005

Geologist, United States Geological Survey, Tucson, AZ, summer 2002

Geologist, Arizona Geological Survey, Tucson, AZ, 2002-2005