Research Summary
My research covers five related areas involving the use of seismic data to investigate Earth structure and processes over a range of scales, from the deep mantle to the surface. Tightly integrated with my research is an education effort to improve diversity in the geosciences.
In the News
Research Keywords
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Recent Publications
Observations of Local-Distance P/S Amplitude Ratios from Deep Mine and Natural Seismic Sources: Implications for Seismic-Source Discrimination
Deane, C. A., Ammon, C. J., Nyblade, A. A., Durrheim, R. J. & Ogasawara, H., Jul 2025, In: Geophysical Prospecting. 73, 6, e70053.Research output: Contribution to journal › Article › peer-review
Moment tensors for small earthquakes and the stress regime in the mid-Atlantic United States
Homman, K. & Nyblade, A., Jan 24 2025, In: Tectonophysics. 895, 230582.Research output: Contribution to journal › Article › peer-review
The Pennsylvania State Seismic Network (PASEIS) and Seismicity Within the Commonwealth of Pennsylvania
Homman, K. A. & Nyblade, A. A., Sep 2025, In: Seismological Research Letters. 96, 5, p. 3195-3206 12 p.Research output: Contribution to journal › Article › peer-review
Seismic Evidence for Widespread Active Magmatism in Eastern Marie Byrd Land, Antarctica
Lucas, E. M., Nyblade, A. A., Wiens, D. A., Aster, R. C. & Wilson, T. J., Oct 16 2025, In: Geophysical Research Letters. 52, 19, e2025GL116647.Research output: Contribution to journal › Article › peer-review
Convolutional Neural Networks Versus P/S Amplitude Ratios in Low-Yield Seismic Event Discrimination: An Evaluation Using Earthquakes, Mine Blasts, and Mining-Related Events from the Kiruna Mining Region, Northern Sweden
Rathnayaka, S., Maguire, R., Nyblade, A., Lund, B. & Schmandt, B., Jul 2025, In: Seismological Research Letters. 96, 4, p. 2264-2272 9 p.Research output: Contribution to journal › Article › peer-review
Moho depth and sediment thickness estimates for the coastal basins of southeastern Tanzania and the Mozambique Coastal Plain
Sabattier, A. & Nyblade, A., Jun 6 2025, In: Tectonophysics. 906, 230738.Research output: Contribution to journal › Article › peer-review
The structure of Precambrian crust in sub-Saharan Africa: An AfricaArray synthesis and review
Sabattier, A., Nyblade, A., Durrheim, R., Andriampenomanana, F., Raveloson, A., Fadel, I., van der Meijde, M. & Willet, A., Aug 2025, In: Journal of African Earth Sciences. 228, 105664.Research output: Contribution to journal › Review article › peer-review
Coherent Seismic Anisotropy Pattern Across Southern Africa Revealed by Shear Wave Splitting Measurements
Andriampenomanana, F., Nyblade, A., Durrheim, R., van der Meijde, M., Paulssen, H., Kwadiba, M., Ntibinyane, O., Titus, N. & Sitali, M., May 2024, In: Earth and Space Science. 11, 5, e2023EA003469.Research output: Contribution to journal › Article › peer-review
Crustal structure of the Bushveld complex, South Africa from 1D shear wave velocity models: Evidence for complex-wide crustal modification
Contreras, K., Nyblade, A., Durrheim, R., Webb, S., Manzi, M. & Fadel, I., Nov 7 2024, In: Tectonophysics. 890, 230496.Research output: Contribution to journal › Article › peer-review
The influence of realistic 3D mantle viscosity on Antarctica’s contribution to future global sea levels
Gomez, N., Yousefi, M., Pollard, D., DeConto, R. M., Sadai, S., Lloyd, A., Nyblade, A., Wiens, D. A., Aster, R. C. & Wilson, T., Aug 2 2024, In: Science Advances. 10, 31, eadn1470.Research output: Contribution to journal › Article › peer-review
Imaging freshwater and saline aquifers beneath Bradford County, Pennsylvania, USA, using Audio-Magnetotelluric (AMT) data
Rathnayaka, S., Gustafson, C. D., Yoxtheimer, D. & Nyblade, A., Jan 2024, In: Journal of Applied Geophysics. 220, 105255.Research output: Contribution to journal › Article › peer-review
Testing the P/S Amplitude Seismic Source Discriminant at Local Distances Using Seismic Events Within and Surrounding the Kloof Gold Mine, South Africa, and the Kiruna Iron Ore Mine, Northern Sweden
Rathnayaka, S., Nyblade, A. A., Lund, B., Ammon, C., Durrheim, R. & Masethe, R., Aug 2024, In: Bulletin of the Seismological Society of America. 114, 4, p. 2237-2250 14 p.Research output: Contribution to journal › Article › peer-review
Mantle Structure Beneath the Damara Belt in South-Central Africa Imaged Using Adaptively Parameterized P-Wave Tomography
Saeidi, H., Hansen, S. E., Nyblade, A. A. & Haag, R., Mar 2024, In: Journal of Geophysical Research: Solid Earth. 129, 3, e2023JB027965.Research output: Contribution to journal › Article › peer-review
Ross Ice Shelf Displacement and Elastic Plate Waves Induced by Whillans Ice Stream Slip Events
Wiens, D. A., Aster, R. C., Nyblade, A. A., Bromirski, P. D., Gerstoft, P. & Stephen, R. A., Apr 16 2024, In: Geophysical Research Letters. 51, 7, e2023GL108040.Research output: Contribution to journal › Article › peer-review
Crustal and Uppermost Mantle Azimuthal Seismic Anisotropy of Antarctica From Ambient Noise Tomography
Zhou, Z., Wiens, D. A., Nyblade, A. A., Aster, R. C., Wilson, T. & Shen, W., Jan 2024, In: Journal of Geophysical Research: Solid Earth. 129, 1, e2023JB027556.Research output: Contribution to journal › Article › peer-review