Magma Storage at Volcanoes

What is the range of magmatic structures beneath volcanoes and how is it related to variations in input? What are the implications for variations in crust production or material transport?

Crustal magmatic architecture beneath volcanoes is difficult to constrain, particularly in the mid- to deep-crust. As such, we are missing some of the key data to understand the links between the larger scale tectonic processes that cause volcanoes and the smaller, shorter-timescale processes related to eruptions. We are also ill equipped to evaluate how well traditional signatures of magma, such as volcanic seismicity, geodectic inflation, and more, work in the deep crust without other sources of imaging data. My research aims to fill in these gaps in volcanic settings.

Projects

Constraining Transcrustal Magmatic Systems with Receiver Functions Along the Aleutian Island Arc

Deep Crustal Magmatic Structure in the Vicinity of the Pāhala Earthquake Swarm

Magma Storage in the Deep Crust Beneath Cleveland Volcano

Crustal Structure of the Aleutian Island Arc

Publications

Janiszewski, H. A., N. Bennington, J. Wight, (2024), A Seismic Nodal Deployment to Understand Magmatic Structure in the Vicinity of the Pāhala Earthquake Swarm, Seismological Research Letters, doi: https://doi.org/10.1785/0220240060

Portner, D. E., L. S. Wagner, H. A. Janiszewski, D. C. Roman, J. A. Power (2020), Ps-P tomography of a mid-crustal magma reservoir beneath Cleveland Volcano, Alaska, Geophysical Research Letters

Janiszewski, H. A., L. S. Wagner, D. C. Roman, (2020) Aseismic mid-crustal magma reservoir at Cleveland Volcano imaged through novel receiver function analyses, Scientific Reports

Janiszewski, H. A., G. A. Abers, Shillington, D.J., and J. A. Calkins, (2013) Crustal structure along the Aleutian island arc: New insights from receiver functions constrained by active source data, Geochem. Geophys. Geosys.