 In 1991, Feustel moved to Kingston, Ontario, Canada to attend Queen's University where he worked as a Graduate Research Assistant and Graduate Teaching Assistant.Feustel's Ph.D. thesis investigated seismic wave attenuation in underground mines and measurement techniques and applications to site characterization.For three years, Feustel worked as a geophysicist for the Engineering Seismology Group, Kingston, Ontario, Canada, installing and operating microseismic monitoring equipment in underground mines throughout Eastern Canada and the United States.