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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, remote sensing, and a range of quantitative methods to zones of active crustal deformation.

I also collaborate on a wide range of projects that involve lidar and photogrammetric data acquisition, processing, and analysis. My group maintains a wide range of hardware and software for acquiring and processing high-resolution topographic data.


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 – 2013

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