I study how faults deform the Earth and lead to the uplift of mountains, as well as all the surface processes that occur in the million year interim. My research spans the spatial scale of centimeter-scale displacement of faults in trenches, to several kilometers of accumulated mountain topography across active plate boundaries. Likewise, I am interested in processes that occur over the timescale of a single earthquake to many millions of years. My work involves a broad range of survey, mapping, geochronology, and modelling techniques to quantify rates and styles of faulting. I have worked in the Basin and Range of the western USA, throughout New Zealand, and the Caucasus of Georgia.
- Bloom C., Stahl T. and Howell A. (2021) Distributed displacement on the Papatea fault from the 2016 Mw 7.8 Kaikōura earthquake and implications for hazard planning. New Zealand Journal of Geology and Geophysics http://dx.doi.org/10.1080/00288306.2021.1975777.
- Brough T., Nicol A., Stahl T., Pettinga JR., Dissen RV., Clark D., Khajavi N., Pedley K., Langridge R. and Wang N. (2021) Paleoseismicity of the western Humps fault on the Emu Plain, North Canterbury, New Zealand. New Zealand Journal of Geology and Geophysics http://dx.doi.org/10.1080/00288306.2021.1986727.
- Duffy B., Van Dissen R., Quigley M., Litchfield N., McInnes C., Leprince S., Barrell D., Stahl T., Bilderback E. and Campbell J. (2021) Fault geometry and kinematics of river avulsion on the Greendale Fault during the 2010 Darfield (Canterbury) Earthquake, New Zealand, revealed by trilateration and multi-temporal LiDAR.. .
- Stahl TA., Niemi NA., Delano JE., Wolfe FD., Bunds MP. and Howell A. (2021) Diffuse Tectonic Deformation in the Drum Mountains Fault Zone, Utah, USA: Testing the Utility of Legacy Aerial Photograph-Derived Topography. Frontiers in Earth Science 8 http://dx.doi.org/10.3389/feart.2020.600729.
- Howell A., Nissen E., Stahl T., Clark K., Kearse J., Van Dissen R., Villamor P., Langridge R. and Jones K. (2020) Three-Dimensional Surface Displacements During the 2016 M
W7.8 Kaikōura Earthquake (New Zealand) From Photogrammetry-Derived Point Clouds. Journal of Geophysical Research: Solid Earth 125(1) http://dx.doi.org/10.1029/2019JB018739.