CHRIS GREGG is an Associate Professor of Geology at East Tennessee State University. He teaches core geology classes, natural hazards and engineering geology, but his research relates more to social aspects of natural hazards rather than physical aspects. In 2005 he obtained his Ph.D. at the University of Hawaii in Geology & Geophysics. His PhD research was related to volcanic and tsunami hazard awareness, risk perception and preparedness in the Hawaiian Islands. Since 2005 he has been working on tsunami warning projects in Thailand and six coastal communities in the USA and on a volcanic hazard project in the Commonwealth of the Northern Mariana Islands. His current collaborators are located in Tennessee, North Carolina, Mississippi, Michigan, Hawaii, Washington, Oregon, California, New Zealand, Australia and Thailand. These collaborators span disciplines such as geology, geography, sociology, psychology, anthropology, emergency management and pedagogy.