Brandon Schmandt


Photo: Brandon Schmandt
Ph.D., University of Oregon, 2011
Northrop Hall, Rm. 204

Related Website/s

Research Area/s:

Geophysics/Seismology,  Tectonics/Structural Geology,  Volcanology

Research and Academic Interests:

Geophysics. My research group’s technical focus is in seismology. We apply or adapt seismic imaging methods to resolve subsurface structures that give insights into the geologic history and contemporary state of tectonic and magmatic processes. We analyze of seismic source properties to study earthquakes in tectonic, magmatic, and industrial settings. Additionally, we advance methods to distinguish the seismic signals of earthquakes, explosions, and mechanical processes in the environment. Our observational research is fueled by the rapidly growing archives of publicly available seismic data and fieldwork to collect new seismic data.

Recent Publications:

Selected publications since 2017 (UNM undergrad**, grad*, postdoc^):

 *Wilgus, J., Schmandt, B., ^Maguire, R., Jiang, C., Chaput, J. (2023). Shear Velocity Evidence of Upper Crustal Magma Storage Beneath Valles Caldera. Geophysical Research Letters, 50(5).

 **Stairs, R. K., Schmandt, B., Townsend, J. P., & Wang, R. (2023). The Seismic Signature of a High‐Energy Density Physics Laboratory and Its Potential for Measuring Time‐Dependent Velocity Structure. Seismological Research Letters.

 Jiang, C., Schmandt, B., Abers, G. A., Kiser, E., & Miller, M. S. (2023). Segmentation and radial anisotropy of the deep crustal magmatic system beneath the Cascades arc. Geochemistry, Geophysics, Geosystems, 24(3), e2022GC010738.

^Maguire, R., Schmandt, B., Li, J., Jiang, C., Li, G., *Wilgus, J., & Chen, M. (2022). Magma accumulation at depths of prior rhyolite storage beneath Yellowstone Caldera. Science, 378(6623), 1001-1004.

 *Zhang, H., Schmandt, B., *Zhou, W. Y., Zhang, J. S., & ^Maguire, R. (2022). A single 520 km discontinuity beneath the contiguous United States with pyrolitic seismic properties. Geophysical Research Letters, 49(24), e2022GL101300.

 *Zhang, H., *Glasgow, M., Schmandt, B., Thelen, W. A., Moran, S. C., & Thomas, A. M. (2022). Revisiting the depth distribution of seismicity before and after the 2004–2008 eruption of Mount St. Helens. Journal of Volcanology and Geothermal Research, 430, 107629.

^Maguire, R., Schmandt, B., Chen, M., Jiang, C., Li, J., & *Wilgus, J. (2022). Resolving continental magma reservoirs with 3D surface wave tomography. Geochemistry, Geophysics, Geosystems, 23(8), e2022GC010446.

 Karlstrom, K. E., *Wilgus, J., *Thacker, J. O., Schmandt, B., Coblentz, D., & *Albonico, M. (2022). Tectonics of the Colorado Plateau and its margins. Annual Review of Earth and Planetary Sciences, 50, 295-322.

 *Zhang, H., Schmandt, B., & Zhang, J. S. (2021). Localized anisotropy in the mantle transition zone due to flow through slab gaps. Geophysical Research Letters, 48(10), e2021GL092712.

 ^Wang, R., Schmandt, B., Holt, M., & Koper, K. (2021). Advancing Local Distance Discrimination of Explosions and Earthquakes With Joint P/S and ML‐MC Classification. Geophysical Research Letters, 48(23), e2021GL095721.

 *Glasgow, M., Schmandt, B., ^Wang, R., Zhang, M., Bilek, S. L., & Kiser, E. (2021). Raton Basin induced seismicity is hosted by networks of short basement faults and mimics tectonic earthquake statistics. Journal of Geophysical Research: Solid Earth, 126(11), e2021JB022839.

 ^Wang, R., Schmandt, B., Zhang, M., *Glasgow, M., Kiser, E., **Rysanek, S., & **Stairs, R. (2020). Injection‐Induced Earthquakes on Complex Fault Zones of the Raton Basin Illuminated by Machine‐Learning Phase Picker and Dense Nodal Array. Geophysical Research Letters, 47(14), e2020GL088168.

 *Wilgus, J., ^Jiang, C., & Schmandt, B. (2020). A Middle Crustal Channel of Radial Anisotropy Beneath the Northeastern Basin and Range. Tectonics, e2020TC006140.

 ^Wang, R., Schmandt, B., & Kiser, E. (2020). Seismic discrimination of controlled explosions and earthquakes near Mount St. Helens using P/S ratios. Journal of Geophysical Research: Solid Earth, 125(10), e2020JB020338.

 *Zhang, H., & Schmandt, B. (2019). Application of Ps Scattering Kernels to Imaging the Mantle Transition Zone with Receiver Functions. Journal of Geophysical Research: Solid Earth.

 ^Jiang, C., Schmandt, B., Farrell, J., Lin, F. C., & Ward, K. M. (2018). Seismically anisotropic magma reservoirs underlying silicic calderas. Geology.

 Schmandt, B., ^Jiang, C., & Farrell, J. (2019). Invited Review: Seismic perspectives from the western US on magma reservoirs underlying large silicic calderas. Journal of Volcanology and Geothermal Research.

 ^Jiang, C., Schmandt, B., & Clayton, R. W. (2018). An anisotropic contrast in the lithosphere across the central San Andreas fault. Geophysical Research Letters.

 ^Jiang, C., Schmandt, B., ^Hansen, S. M., Dougherty, S. L., Clayton, R. W., Farrell, J., & Lin, F. C. (2018). Rayleigh and S wave tomography constraints on subduction termination and lithospheric foundering in central California. Earth and Planetary Science Letters, 488, 14-26.

 Schmandt, B., Gaeuman, D., Stewart, R., ^Hansen, S. M., Tsai, V. C., & *Smith, J. (2017). Seismic array constraints on reach-scale bedload transport. Geology, 45(4), 299-302.

 ^Hansen, S. M., & Schmandt, B. (2017). P and S wave receiver function imaging of subduction with scattering kernels. Geochemistry, Geophysics, Geosystems, 18(12), 4487-4502.