Qualifications
Research Interests
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.
Recent Publications
- Walsh E., Stahl T., Howell A. and Robinson T. (2023) Two-Dimensional Empirical Rupture Simulation: Examples and Applications to Seismic Hazard for the Kaikōura Region, New Zealand. Seismological Research Letters 94(2A): 852-870. http://dx.doi.org/10.1785/0220220231.
- Bloom CK., Howell A., Stahl T., Massey C. and Singeisen C. (2022) The influence of off-fault deformation zones on the near-fault distribution of coseismic landslides. Geology 50(3): 272-277. http://dx.doi.org/10.1130/G49429.1.
- Delano J., Stahl T., Howell A. and Clark K. (2022) 3D coseismic surface displacements from historical aerial photographs of the 1987 Edgecumbe earthquake, New Zealand. Earth and Space Science Open Archive http://dx.doi.org/10.1002/essoar.10510511.1.
- Delano JE., Howell A., Stahl TA. and Clark K. (2022) 3D Coseismic Surface Displacements From Historical Aerial Photographs of the 1987 Edgecumbe Earthquake, New Zealand. Journal of Geophysical Research: Solid Earth 127(11) http://dx.doi.org/10.1029/2022JB024059.
- Singeisen C., Massey C., Wolter A., Kellett R., Bloom C., Stahl T., Gasston C. and Jones K. (2022) Mechanisms of rock slope failures triggered by the 2016 Mw 7.8 Kaikōura earthquake and implications for landslide susceptibility. Geomorphology 415 http://dx.doi.org/10.1016/j.geomorph.2022.108386.