A core focus throughout Frost’s career has been the study and analysis of natural and man-made disasters. His research is centered on the development and implementation of digital data collection systems for studying subsurface problems related to earthquakes and other disasters at multiple scales and he has received two U.S. patents for multi-sensor subsurface data collection systems. For more than 20 years, he has served on or led NSF-supported post-disaster study teams following earthquakes in US, Turkey, India, China and Chile as well as at the World Trade Center complex following the 9/11 attacks and he served as a member of the external review board for the NIST report on the Collapse of the World Trade Center Towers.