I’m an active tectonicist and earthquake geologist interested in the behavior of faults and fault systems, the earthquakes they produce, and the resulting seismic hazards. My students and I use a wide range of techniques to study these issues, including everything from hard-core, boots-on-the-ground structural, paleoseismologic, and geomorphologic field work, to the acquisition and analysis of aerial lidar and shallow geophysical data, to the use of advanced image correlation techniques in change-detection analysis of the landscape.  Specific recent research efforts focus on generating incremental fault slip rates and paleo-earthquake ages and displacements from active faults in a number of different plate boundaries, aimed at understanding how relative plate motions spanning tens to a few hundred meters are accommodated on crustal faults and fault systems, analysis of how seismic fault slip is made manifest in the geomorphology, studies of how rivers interact with active faults to generate records of terrace development and offset, understanding the behavior, structural expression, and evolution of blind thrust faults and their associated folds, and the use of all these data in the development of next-generation seismic hazard models and as inputs into geodynamical models aimed at understanding the mechanics of relative plate motion.