Contact Information
Biography
In November and December of 2016 Dr. Gregg served as Chief Scientist of the OASIS Expedition. K-12 students had the opportunity to follow along with the OASIS Science Team on an expedition of discovery to investigate submarine volcanoes that have never been explored before. You can learn more about the 2016 expedition on the OASIS Facebook Page and/or OASIS YouTube Channel. Make sure to *Subscribe* to follow along with the team when they return to the OASIS field sight in December 2018!
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Research Interests
Volcano Geophysics and Geodynamics, Mid-Ocean Ridge Processes, Melt Generation and Migration Through the Upper Mantle. My current research utilizes thermomechanical models to better understand the rheological controls on magma reservoir growth, pressurization, and volcanic eruption. I also use geodynamic models to investigate melting and melt migration in the mantle beneath mid-ocean ridges. My work involves a multi-pronged approach that combines data collection on land and at sea with data analysis and model development. Future projects include case studies of active continental volcanic systems as well as seagoing field expeditions to better understand the formation of new oceanic crust at mid-ocean ridges.
Research Description
I study volcanoes in the Galapagos.
Education
- Ph.D. Massachusetts Institute of Technology / Woods Hole Oceanographic Institution Joint Program 2008
- B.S. Geology & Geophysics, University of Missouri - Rolla, now MS&T
Courses Taught
- GEOL 350: Volcanoes
- GEOL 450: Probing the Earth's Interior
- GEOL 593X: Volcano Geophyiscs & Geodynamics
- GEOL 593P: Mid-ocean Ridge Tectonics
- GEOL 593K: Applied Geophysics
Additional Campus Affiliations
Associate Professor, Earth Science and Environmental Change
Associate Professor, National Center for Supercomputing Applications (NCSA)
Associate Professor, Center for Latin American and Caribbean Studies
External Links
Recent Publications
Wang, J., Lu, Z., Gregg, P. M., & Kim, J. W. (2024). Evolution of the magma system at Makushin volcano, Alaska, from 2004 to 2021. Journal of Volcanology and Geothermal Research, 446, Article 107991. https://doi.org/10.1016/j.jvolgeores.2023.107991
Albright, J. A., & Gregg, P. M. (2023). Building a Better Forecast: Reformulating the Ensemble Kalman Filter for Improved Applications to Volcano Deformation. Earth and Space Science, 10(1), Article e2022EA002522. https://doi.org/10.1029/2022EA002522
Wang, J., Lu, Z., Bekaert, D., Marshak, C., Govorcin, M., Sangha, S., Kennedy, J., & Gregg, P. (2023). Along-Arc Volcanism in the Western and Central Aleutian From 2015 to 2021 Revealed by Cloud-Based InSAR Processing. Geophysical Research Letters, 50(23), Article e2023GL106323. https://doi.org/10.1029/2023GL106323
Fabbrizzi, A., Parnell-Turner, R., Gregg, P. M., Fornari, D. J., Perfit, M. R., Wanless, V. D., & Anderson, M. (2022). Relative Timing of Off-Axis Volcanism From Sediment Thickness Estimates on the 8°20’N Seamount Chain, East Pacific Rise. Geochemistry, Geophysics, Geosystems, 23(9), Article e2022GC010335. https://doi.org/10.1029/2022GC010335
Goldman, R. T., Albright, J. A., Gravley, D. M., Grosfils, E. B., Gregg, P. M., & Hampton, S. J. (2022). Stress Control of Dike Deflection and Flank Eruption at Akaroa Volcano, New Zealand. Journal of Geophysical Research: Solid Earth, 127(8), Article e2022JB024305. https://doi.org/10.1029/2022JB024305