That August, he accepted an administrative position at the U.S. Geological Survey at the Denver Federal Center and relocated to Golden, Colorado. [He stepped down 5 years later to focus on field ...

engineering geology, subsurface exploration, and three- or four-dimensional characterizations. Sean lives with his family in Golden, Colorado.

Nadine is a Research Geologist at the USGS Geologic Hazards Science Center in Golden, CO. As an earthquake geologist, she uses numerical modeling, field observation, and remote sensing to unravel ...