Dr. Boyd


I give lectures on time-dependent seismic hazards and stresses before, during, and after earthquakes.

Research Overview
Much of my past research has focused on the physics of deformation of mantle minerals and aggregates at seismic frequencies and elevated pressures and temperatures. My past research has also included the measurement and interpretation of seismic attributes in the lithospheric mantle beneath mountain ranges and large strike-slip faults. Currently, my research involves many aspects of probabilistic seismic hazard analysis (PSHA), particularly for intraplate regions such as the central and eastern United States, and includes time-dependent earthquake probabilities, ground motion prediction equations, and earthquake clustering.

Current Research Projects

  • Earthquake clustering and declustering
  • Geodesy in the New Madrid seismic zone
  • Magnitudes of historic earthquakes from reported intensities
Selected Publications (full list)
  • Boyd, O.S., Including Foreshocks and Aftershocks in Time-Independent Probabilistic Seismic-Hazard Analyses, Bulletin of the Seismological Society of America, Vol. 102, No. 3, pp. 909-917, 2012.

  • Boyd, O.S., Earthquake hazard and recurrence in the New Madrid region, in Witt, E., ed., Proceedings of Preparing for a Significant Central United States Earthquake-Science Needs of the Response and Recovery Community: USGS Scientific Investigations Report 2010-5173, p. 14-19, 2010.

  • Boyd, O.S., F. Pollitz, Y. Zeng, J. Hardebeck, C.G. Bufe, and R.L. Wesson, Towards a time-dependent probabilistic seismic hazard analysis for Alaska, in Active Tectonics and Seismic Potential of Alaska, edited by J. Freymueller, et al., AGU Monograph, 2008.

  • Wesson, R.L., and O.S. Boyd, Stress before and after the 2002 Denali fault earthquake, Geophysical Research Letters, 34, L07303, doi:10.1029/2007GL029189, 2007.
Additional information