Geologist (1993-2002) U.S. Geological Survey, Water Resources Division, Yucca Mountain Project Branch, Denver Colorado
Geologist (1985-1992) U.S. Geological Survey, Geologic Division, Office of Earthquakes, Volcanoes and Engineering, Branch of Engineering Seismology and Geology, Menlo Park California
Graduate Research Assistant (1990-1993) Department of Geological Sciences, University of Oregon, Eugene
Graduate Teaching Assistant (1988-1990) Department of Geological Sciences, University of Oregon, Eugene
Graduate Research Fellow (1986-1988) Center for Earthquake Research and Information, Memphis State University, Tennessee
American Geophysical Union
Geological Society of America
Seismological Society of America
Email: spezz@earthlink.net