Alexandra Iezzi, Ph.D.
My research focuses on using infrasound and seismic data to study and improve monitoring of volcanic events in the Cascades. In particular, I focus on lahar/debris flow research and the development of detection, localization, and characterization algorithms for these types of events.
Professional Experience
2022 - present: Research Geophysicist, Volcano Science Center, Cascades Volcano Observatory
2020 - 2022: NSF Earth Sciences Postdoctoral Fellow, University of California Santa Barbara
2015 - 2020: Graduate Research Assistant, Geophysical Institute, Alaska Volcano Observatory, University of Alaska Fairbanks
Summer 2019: Graduate Research Assistant, Los Alamos National Laboratory
Summer 2014 & 2015: Physical Science Technician (180-day appointment), Volcano Science Center, Alaska Volcano Observatory
Winter 2014: Research Assistant (volunteer), Volcano Science Center, Cascades Volcano Observatory
2013 - 2015: Fluvial Studies Research Assistant, Connecticut College
Education and Certifications
2020 - Ph.D. in Geophysics, University of Alaska Fairbanks
2015 - B.A. in Geophysics (self-designed) with minors in Mathematics and Physics, Connecticut College
Science and Products
Evidence for near-source nonlinear propagation of volcano infrasound from Strombolian explosions at Yasur Volcano, Vanuatu
High-rate very-long-period seismicity at Yasur volcano, Vanuatu: source mechanism and decoupling from surficial explosions and infrasound
Synthetic evaluation of infrasonic multipole waveform inversion
Local explosion detection and infrasound localization by reverse time migration using 3-D finite-difference wave propagation
2017 Volcanic activity in Alaska—Summary of events and response of the Alaska Volcano Observatory
2016 Volcanic activity in Alaska—Summary of events and response of the Alaska Volcano Observatory
Evolving infrasound detections from Bogoslof volcano, Alaska: Insights from atmospheric propagation modeling
Infrasound generated by the 2016-2017 shallow submarine eruption of Bogoslof volcano, Alaska
AVO-G2S: A modified, open-source Ground-to-Space atmospheric specification for infrasound modeling
Application of an updated atmospheric model to explore volcano infrasound propagation and detection in Alaska
2015 Volcanic activity in Alaska—Summary of events and response of the Alaska Volcano Observatory
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Evidence for near-source nonlinear propagation of volcano infrasound from Strombolian explosions at Yasur Volcano, Vanuatu
High-rate very-long-period seismicity at Yasur volcano, Vanuatu: source mechanism and decoupling from surficial explosions and infrasound
Synthetic evaluation of infrasonic multipole waveform inversion
Local explosion detection and infrasound localization by reverse time migration using 3-D finite-difference wave propagation
2017 Volcanic activity in Alaska—Summary of events and response of the Alaska Volcano Observatory
2016 Volcanic activity in Alaska—Summary of events and response of the Alaska Volcano Observatory
Evolving infrasound detections from Bogoslof volcano, Alaska: Insights from atmospheric propagation modeling
Infrasound generated by the 2016-2017 shallow submarine eruption of Bogoslof volcano, Alaska
AVO-G2S: A modified, open-source Ground-to-Space atmospheric specification for infrasound modeling
Application of an updated atmospheric model to explore volcano infrasound propagation and detection in Alaska
2015 Volcanic activity in Alaska—Summary of events and response of the Alaska Volcano Observatory
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.