Martin C. Chapman

Martin C. Chapman serves as Research Professor of Geophysics in Virginia Tech's College of Science, Department of Geosciences. He directs the Virginia Tech Seismological Observatory (VTSO), operating from a Cold War-era fallout shelter near the Virginia Tech Executive Airport. His research integrates observational seismology with earthquake hazard mitigation in plate-interior regions, particularly eastern North America.

His educational background includes:

• Ph.D. in Geophysics, Virginia Tech (1998)
• M.S. in Geophysics, Virginia Tech (1979)
• B.S. in Geophysics, Virginia Tech (1977)

Chapman's primary research focuses on plate-interior seismicity/tectonics and strong-motion seismology. He combines field observations from the VTSO network with global strong-motion data to investigate earthquake causes and wave propagation characteristics. Recent work emphasizes induced seismicity from aquifer recharge and wastewater injection, site amplification effects in sedimentary basins, and development of seismic monitoring networks for risk reduction in eastern North America.

Analysis of his 2022-2025 publications reveals concentrated research on injection-induced seismicity in Virginia's Hampton Roads region, sediment thickness mapping of Atlantic/Gulf Coastal Plains for ground motion prediction, and advanced characterization of historical earthquakes (1886 Charleston) and recent sequences (2024 New Jersey, 2020 Sparta). His methodology integrates dense seismic arrays, machine learning detection algorithms, and geospatial analysis to refine hazard models.

His scientific recognition includes:

• Jesuit Seismological Association Award for Contributions to Observational Seismology (2016)

As VTSO director, Chapman oversees seismic monitoring across Virginia and leads the Hampton Roads Seismic Network initiative. His work involves significant collaboration with the US Geological Survey on coastal plain amplification studies and regional seismic hazard workshops. Current projects focus on optimizing earthquake detection during aquifer recharge operations and developing site-specific amplification models for eastern US infrastructure.

Chapman's laboratory operations center on the VTSO's network of seismic stations, utilizing advanced techniques including reverse vertical seismic profiling and dense array backprojection imaging. His team's recent field deployments target induced seismicity monitoring in Southeast Virginia and detailed characterization of the Central Virginia Seismic Zone.