Recent publications (2020-2025), listed by year and alphabetically by first author. Bolded authors are or were affiliated with UUSS and/or the University of Utah Dept. of Geology and Geophysics.
[Last updated 5 Jan. 2026]
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Armstrong, A.D., B. Baker, & K.D. Koper (2025). Feature-Based Magnitude Estimates for Small Earthquakes in the Yellowstone Region, Bulletin of the Seismological Society of America, 115(4), 1479-1496, doi: https://doi.org/10.1785/0120240240.
Duan, C., W. Song, B. Schmandt, J. Farrell, D. Lumley, T. Fischer, L. Lowe Worthington, and F.-C. Lin (2025), A sharp volatile-rich cap to the Yellowstone magmatic system, Nature, 640, 962-966, doi: https://doi.org/10.1038/s41586-025-08775-9.
Hutchings, S.J., A. Pitarka, K.D. Koper, R. Burlacu, J.R. Voyles (2025). Simulating High-Frequency Seismograms in Realistic Earth Models to Better Understand Source Discrimination Based on Differential Magnitudes (ML-MC), Seismological Research Letters, 96(5), 2979-2994, doi: https://doi.org/10.1785/0220240378.
Hutchings, S.J., K.D. Koper, R. Burlacu, Q. Zeng, F.-C. Lin, and G. Zandt (2025). Upper Mantle Earthquakes Along the Edge of the Wyoming Craton, Geophysical Research Letters, 52, e2024GL114073, doi: https://doi.org/10.1029/2024GL114073.
Morton, E.A., K.D. Koper, D.L. Kilb, & R. Burlacu (2025). Exploring the Feasibility of a Regional Earthquake Early Warning System in Utah, Bulletin of the Seismological Society of America, doi: https://doi.org/10.1785/0120250155.
Niemz, P., K. Pankow, M.P. Isken, K. Whidden, J. McLennan, & J. Moore (2025). Mapping fracture zones with Nodal geophone patches: Insights from induced microseismicity during the 2024 stimulations at Utah FORGE, Seismological Research Letters, 96(3), 1603-1618, doi: https://doi.org/10.1785/0220240300.
Poland, M. P., A.M. Iezzi, J. Farrell, R.G. Vaughan (2025). The First Instrumentally Detected Hydrothermal Explosion in Yellowstone National Park, Geophysical Research Letters, 52(11), e2025GL115850, doi: https://doi.org/10.1029/2025GL115850.
Schuster, G.T., J. Li, S. Hanafy, V. Thompson, J.M. Farrell, D. Trentman (2025). Rocketquake Seismology with a Falcon 9 Rocket Source, https://doi.org/10.48550/arXiv.2502.01982.
Vidale, J.E., W. Wang, R. Wang, G. Pang, & K. Koper (2025). Annual-scale variability in both the rotation rate and near surface of Earth’s inner core, Nature Geoscience, 18, 267-272, doi: https://doi.org/10.1038/s41561-025-01642-2.
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Koper, K.D., R. Burlacu, R. Murray, B. Baker, R. Tibi, & A. Mueen (2024). Inferring the Focal Depths of Small Earthquakes in Southern California Using Physics‐Based Waveform Features. Bulletin of the Seismological Society of America, 114(5): 2376–2396, doi: https://doi.org/10.1785/0120230307.
Koper, K.D., R. Burlacu, A.D. Armstrong, & R.B. Herrmann (2024). Classifying small earthquakes, explosions and collapses in the western United States using physics-based features and machine learning, Geophysical Journal International, 239(2), 1257-1270, doi: https://doi.org/10.1093/gji/ggae316.
Niemz, P., J. McLennan, K.L. Pankow, J. Rutledge, & K. England (2024). Circulation experiments at Utah FORGE: Near-surface seismic monitoring reveals fracture growth after shut-in, Geothermics, 119, 102947, doi: https://doi.org/10.1016/j.geothermics.2024.102947.
Pecci, D., S. Cesca, P. Niemz, K. Pankow, G. Carelli, & F. Grigoli (2024). Noise Analysis of Distributed Acoustic Sensing (DAS) Data in Borehole Installations, Seismological Research Letters, 96(3), 1703-1718, doi: https://doi.org/10.1785/0220240292.
Reed, M.H., A. Barth, T. Taira, J. Farrell, & M. Manga (2024). A shake and a surge: Assessing the possibility of an earthquake-triggered eruption at Steamboat Geyser, Volcanica, 7(2), 733-748, doi: https://doi.org/10.30909/vol.07.02.733748.
Wang, W., J.E. Vidale, G. Pang, K.D. Koper, & R. Wang (2024). Inner core backtracking by seismic waveform change reversals, Nature, 631, 340-343, doi: https://doi.org/10.1038/s41586-024-07536-4.
Wells, D., A. Lomax, B. Baker, J. Bartley, & K. Pankow (2024). Wasatch Fault Structure from Machine Learning Arrival Times and High‐Precision Earthquake Locations. Bulletin of the Seismological Society of America, 114(4): 1902–1919, doi: https://doi.org/10.1785/0120230247.
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Armstrong, A.D., Z. Claerhout, B. Baker, & K.D. Koper (2023). A Deep Learning Phase Picker with Calibrated Bayesian-derived Uncertainties for Earthquakes in the Yellowstone Volcanic Region, Bulletin of the Seismological Society of America, 113(6), 2323-2344, doi: https://doi.org/10.1785/0120230068.
Farrell, J., K.D. Koper, & R.A. Sohn (2023). The Relationship Between Wind, Waves, Bathymetry, and Microseismms in Yellowstone Lake, Yellowstone National Park, Journal of Geophysical Research: Solid Earth, 128(7), 18pp., doi: https://doi.org/10.1029/2022JB025943.
Liu, C.-N., F.-C. Lin, M. Manga, J. Farrell, S.-M. Wu, M.H. Reed, A. Barth, J. Hungerford, & E. White (2023). Thumping Cycle Variations of Doublet Pool in Yellowstone National Park, USA, Geophysical Research Letters, 50(4), 9 pp, doi: https://doi.org/10.1029/2022GL101175.
Morton, E.A., S.L. Bilek, & C.A. Rowe (2023). Cascadia Subduction Zone Fault Heterogeneities from Newly Detected Small Magnitude Earthquakes, Journal of Geophysical Research: Solid Earth, 128(6), 23pp, doi: https://doi.org/10.1029/2023JB026607.
Pang, G., K.D. Koper, S.-M. Wu, W. Wang, M. Lasbleis, & G. Euler (2023). Enhanced Inner Core Fine-Scale Heterogeneity Towards Earth's Centre, Nature, 620, 570-575, doi: https://doi.org/10.1038/s41586-023-06213-2.
Petersen, G.M., & K.L. Pankow (2023). Small-magnitude seismic swarms in Central Utah (US): Interactions of regional tectonics, local structures and hydrothermal systems, Geochemistry, Geophysics, Geosystems, 24(7), 26pp, doi: https://doi.org/10.1029/2023GC010867.
Whidden, K.M., G.M. Petersen, M. Mesimeri, & K.L. Pankow (2023). Analysis of the 2021 Milford, Utah earthquake swarm: Enhanced earthquake catalog and migration patterns, Frontiers in Earth Science, 11, doi: https://doi.org/10.3389/feart.2023.1057982.
Wu, S.-M., H.-H. Huang, F.-C. Lin, J. Farrell, & B. Schmandt (2023). Extreme seismic anisotropy indicates shallow accumulation of magmatic sills beneath Yellowstone caldera, Earth and Planetary Science Letters, 616, 10 pp, doi: https://doi.org/10.1016/j.epsl.2023.118244.
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Dzubay, A., J.R. Moore, R. Finnegan, E. K. Jensen, P.R. Geimer, & K.D. Koper (2022). Rotational Components of Normal Modes Measured at a Natural Sandstone Tower (Kane Springs Canyon, Utah, USA), The Seismic Record, 2(4), 260-268, doi: https://doi.org/10.1785/0320220035.
Holt, J., J.C. Pechmann, & K.D. Koper (2022). Recalibration of the Local Magnitude (ML) Scale for Earthquakes in the Yellowstone Volcanic Region, Bulletin of the Seismological Society of America, 112(2), 905-920, doi: https://doi.org/10.1785/0120210240.
Kong, Q., R. Wang, W.R. Walter, M. Pyle, K. Koper, & B. Schmandt (2022). Combining Deep Learning With Physics Based Features in Explosion-Earthquake Discrimination, Geophysical Research Letters, 49(13), 10 pp, doi: https://doi.org/10.1029/2022GL098645.
Mesimeri, M., A. Ganas, & K.L. Pankow (2022). Multisegment ruptures and Vp/Vs variations during the 2020-2021 seismic crisis in western Corinth Gulf, Greece, Geophysical Journal International, 230(1), 334-348, doi: https://doi.org/10.1093/gji/ggac081.
Mesimeri, M., & K.L. Pankow (2022). Revisiting Operational Aftershock Forecasting in the Eastern Intermountain West, Seismological Research Letters, 93(4), 2259-2267, doi: https://doi.org/10.1785/0220210327.
Pang, G., & K.D. Koper (2022). Excitation of Earth’s inner core rotational oscillation during 2001-2003 captured by earthquake doublets, Earth and Planetary Science Letters, 584, 10pp, doi: https://doi.org/10.1016/j.epsl.2022.117504.
Wells, D., F.-C. Lin, K. Pankow, B. Baker, & J. Bartley (2022). Combining Dense Seismic Arrays and Broadband Data to Image the Subsurface Velocity Structure in Geothermally Active South-Central Utah, Journal of Geophysical Research: Solid Earth, 127(7), 23 pp, doi: https://doi.org/10.1029/2022JB024070.
Wu, S.-M., G. Pang, K.D. Koper, & G. Euler (2022). A Search for Large-Scale Variations in the Fine-Scale Structure of Earth's Inner Core, Journal of Geophysical Research: Solid Earth, 127(9), 25pp, doi: https://doi.org/10.1029/2022JB024420.
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Baker, B., M.M. Holt, K.L. Pankow, K.D. Koper, & J. Farrell (2021). Monitoring the 2020 Magna, Utah Earthquake Sequence with Nodal Seismometers and Machine Learning, Seismological Research Letters, 92(2A), 787-801, doi: https://doi.org/10.1785/0220200316.
Gold, R.D., J.M. Bormann, & K.D. Koper (2021). Preface to the Focus Section on the 2020 Intermountain West Earthquakes, Seismological Research Letters, 92(2A), 636-639, doi: https://doi.org/10.1785/0220210001.
Holt, J., K.M. Whidden, K.D. Koper, K.L. Pankow, K. Mayeda, J.C. Pechmann, B. Edwards, R. Gök, & W.R. Walter (2021). Towards Robust and Routine Determination of Mw for Small Earthquakes: Application to the 2020 Mw 5.7 Magna, Utah Seismic Sequence, Seismological Research Letters, 92(2A), 725-740, doi: https://doi.org/10.1785/0220200320.
Johnson, S.W., D.J.A. Chambers, M.S. Boltz, & K.D. Koper (2021). Application of a convolutional neural network for seismic phase picking of mining-induced seismicity, Geophysics Journal International, 224(1), 230-240, doi: https://doi.org/10.1093/gji/ggaa449.
Koper, K.D. (2021). Introducing The Seismic Record—A New, Open-Access Journal from the Seismological Society of America, The Seismic Record, 1(1), 1-2, doi: https://doi.org/10.1785/0320210005.
Koper, K.D., M.M. Holt, J.R. Voyles, R. Burlacu, M.L. Pyle, R. Wang, & B. Schmandt (2021). Discrimination of Small Earthquakes and Buried Single-Fired Chemical Explosions at Local Distances (<150 km) in the Western United States from Comparison of Local Magnitude (ML) and Coda Duration Magnitude (MC), Bulletin of the Seismological Society of America, 111(1), 558-570, doi: https://doi.org/10.1785/0120200188.
Li, J., M. Chen, K.D. Koper, T. Zhou, Z. Xi, S. Li, & G. Li (2021). FastTrip: A fast MPI-Accelerated 1D Triplication Waveform Inversion Package for Constraining Mantle Transition Zone Discontinuities, Seismological Research Letters, 92(4), 2647-2656, doi: https://doi.org/10.1785/0220200475.
Mesimeri, M., H. Zhang, & K.L. Pankow (2021). Backprojection Imaging of the 2020 Mw 5.5 Magna, Utah, Earthquake Using a Local Dense Strong‐Motion Network, Seismological Research Letters, 92(2A), 640-646, doi: https://doi.org/10.1785/0220200326.
Mesimeri, M., K.L. Pankow, W.D. Barnhart, K.M. Whidden, & J.M. Hale (2021). Unusual Seismic Signals in the Sevier Desert, Utah Possibly Related to the Black Rock Volcanic Field, Geophysical Research Letters, 48(5), 9 pp, doi: https://doi.org/10.1029/2020GL090949.
Mesimeri, M., K.L. Pankow, B. Baker, & J.M. Hale (2021). Episodic Earthquake Swarms in the Mineral Mountains, Utah Driven by the Roosevelt Hydrothermal System, Journal of Geophysical Research: Solid Earth, 126(6), 15 pp, doi: https://doi.org/10.1029/2021JB021659.
Mesimeri, M., K.L. Pankow, & J. Rutledge (2021). A Frequency-Domain-Based Algorithm for Detecting Microseismicity Using Dense Surface Seismic Arrays, Bulletin of the Seismological Society of America, 111(5), 2814-2824, doi: https://doi.org/10.1785/0120210062.
Pankow, K.L., E.A. Vanacore, S. Barrientos (2021). Preface to the Focus Section on Seismic Monitoring during Crises, Seismological Research Letters, 92(1), 3-5, doi: https://doi.org/10.1785/0220200405.
Pankow, K.L., J. Rusho, J.C. Pechmann, J.M. Hale, K. Whidden, R. Sumsion, J. Holt, M. Mesimeri, D. Wells, & K.D. Koper (2021). Responding to the 2020 Magna, Utah Earthquake Sequence During the COVID-19 Pandemic Shutdown, Seismological Research Letters, 92(2A), 6-16, doi: https://doi.org/10.1785/0220200265.
Shelly, D.R., K. Mayeda, J. Barno, K.M. Whidden, M.P. Moschetti, A.L. Lenos, J.L. Rubenstein, W.L. Yeck, P.S. Earle, R. Gök, & W.R. Walter (2021). A Big Problem for Small Earthquakes: Benchmarking Routine Magnitudes and Conversion Relationships with Coda Envelope-Derived Mw in Southern Kansas and Northern Oklahoma, Bulletin of the Seismological Society of America, 112(1), 210-225, doi: https://doi.org/10.1785/0120210115.
Tibi, R., P. Hammond, R. Brogan, C.J. Young, & K.D. Koper (2021). Deep Learning Denoising Applied to Regional Distance Seismic Data in Utah, Bulletin of the Seismological Society of America, 111(2), 775-790, doi: https://doi.org/10.1785/0120200292.
Wang, R., B. Schmandt, M. Holt, & K. Koper (2021). Advancing Local Distance Discrimination of Explosions and Earthquakes With Joint P/S and ML-MC Classification, Geophysical Research Letters, 48(23), 11 pp, doi: https://doi.org/10.1029/2021GL095721.
Wilson, C.J.N., G.F. Cooper, K.J. Chamberlain, S.J. Barker, M.L. Myers, F. Illsley-Kemp, & J. Farrell (2021). No single model for supersized eruptions and their magma bodies, Nature Reviews Earth & Environment, 2, 610-627, doi: https://doi.org/10.1038/s43017-021-00191-7.
Wu, S.-M., F.-C. Lin, J. Farrell, W.E. Keller, E.B. White, & J.D.G. Hungerford (2021). Imaging the Subsurface Plumbing Complex of Steamboat Geyser and Cistern Spring With Hydrothermal Tremor Migration Using Seismic Interferometry, Journal of Geophysical Research: Solid Earth, 126(4), 16 pp, doi: https://doi.org/10.1029/2020JB021128.
Zhang, H., & K.L. Pankow (2021). High-resolution Bayesian spatial autocorrelation (SPAC) quasi-3-D Vs model of Utah FORGE site with a dense geophone array, Geophysical Journal International, 225(3), 1605-1615, doi: https://doi.org/10.1093/gji/ggab049.
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Alfaro-Diaz, R., A.A. Velasco, K.L. Pankow, & D. Kilb (2020). Optimally Oriented Remote Triggering in the Coso Geothermal Region, Journal of Geophysical Research: Solid Earth, 125(8), 18 pp, doi: https://doi.org/10.1029/2019JB019131.
Anthony, R.E., A.T. Ringler, D.C. Wilson, M. Bahavar, & K.D. Koper (2020). How Processing Methodologies Can Distort and Bias Power Spectral Density Estimates of Seismic Background Noise, Seismological Research Letters, 91(3), 1694-1706, doi: https://doi.org/10.1785/0220190212.
Koper, K.D. (2020). The Importance of Regional Seismic Networks in Monitoring Nuclear Test-Ban Treaties, Seismological Research Letters, 91(2A), 573-580, doi: https://doi.org/10.1785/0220190160.
Pang, G., K.D. Koper, M. Mesimeri, K.L. Pankow, B. Baker, J. Farrell, J. Holt, J.M. Hale, P. Roberson, R. Burlacu, J.C. Pechmann, K. Whidden, M.M. Holt, A. Allam, & C. DuRoss (2020). Seismic Analysis of the 2020 Magna, Utah Earthquake Sequence: Evidence for a Listric Wasatch Fault, Geophysical Research Letters, 47(18), 10 pp, doi: https://doi.org/10.1029/2020GL089798.
Pankow, K.L., & D. Kilb (2020). Going Beyond Rate Changes as the Sole Indicator for Dynamic Triggering of Earthquakes, Scientific Reports, 10, 4120, doi: https://doi.org/10.1038/s41598-020-60988-2.
Pankow, K.L., M. Stickney, J.Y. Ben-Horin, M. Litherland, S. Payne, K.D. Koper, S.L. Bilek, & K. Bogolub (2020). Regional Seismic Network Monitoring in the Eastern Intermountain West, Seismological Research Letters, 91(2A), 631-646, doi: https://doi.org/10.1785/0220190209.
Russo, E., A. Tibaldi, G.P. Waite, F.L. Bonali, F. Massin, & J. Farrell (2020). Unraveling the complex deformation pattern at Yellowstone plateau through seismicity and fracture analysis, Tectonophysics, 778, 14 pp, doi: https://doi.org/10.1016/j.tecto.2020.228352.
Stabile, T.A., A.P. Rinaldi, & K. Pankow (2020). Preface to the special issue “Induced seismicity: observations, monitoring, and risk management strategies”, Journal of Seismology, 24, 917-919, doi: https://doi.org/10.1007/s10950-020-09956-x.
Voyles, J.R., M.M. Holt, J.M. Hale, K.D. Koper, R. Burlacu, D.J.A. Chambers (2020). A New Catalog of Explosion Source Parameters in the Utah Region with Application to ML–MC‐Based Depth Discrimination at Local Distances, Seismological Research Letters, 91(1), 222-236, doi: https://doi.org/10.1785/0220190185.
Wu, S.-M., F.-C. Lin, J. Farrell, B. Shiro, L. Karlstrom, P. Okubo, & K. Koper (2020). Spatiotemporal Seismic Structure Variations Associated With the 2018 Kīlauea Eruption Based on Temporary Dense Geophone Arrays, Geophysical Research Letters, 47(9), 10 pp, doi: https://doi.org/10.1029/2019GL086668.
Xu, Y., K.D. Koper, R. Burlacu, R.B. Herrmann, & D.-N. Li (2020). A New Uniform Moment Tensor Catalog for Yunnan, China, from January 2000 through December 2014, Seismological Research Letters, 91(2A), 891-900, doi: https://doi.org/10.1785/0220190242.