Publications
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Synthetic evaluation of infrasonic multipole waveform inversion
Acoustic source inversions estimate the mass flow rate of volcanic explosions or yield of chemical explosions and provide insight into potential source directionality. However, the limitations of applying these methods to complex sources and their ability to resolve a stable solution have not been investigated in detail. We perform synthetic infrasound waveform inversions that use 3-D Green’s func
Authors
Alexandra M. Iezzi, Robin S Matoza, David Fee, Keehoon Kim, Arthur Din Jolly
2021 U.S. National Seismic Hazard Model for the State of Hawaii
The 2021 U.S. National Seismic Hazard Model (NSHM) for the State of Hawaii updates the two-decades-old former model by incorporating new data and modeling techniques to improve the underlying ground shaking forecasts of tectonic-fault, tectonic-flexure, volcanic, and caldera collapse earthquakes. Two earthquake ground shaking hazard models (public policy and research) are produced that differ in h
Authors
Mark D. Petersen, Allison Shumway, Peter M. Powers, Morgan P. Moschetti, Andrea L. Llenos, Andrew J. Michael, Charles Mueller, Arthur Frankel, Sanaz Rezaeian, Kenneth S. Rukstales, Daniel E. McNamara, P. Okubo, Yuehua Zeng, Kishor S. Jaiswal, Sean Kamran Ahdi, Jason M. Altekruse, Brian Shiro
From anecdotes to quantification: Advances in characterizing volcanic eruption impacts on the built environment
Over the past 20 years, our understanding of volcanic eruption impacts on the built environment has transformed from being primarily observational with small datasets to one grounded in field investigations, laboratory experiments, and quantitative modeling, with an emphasis on stakeholder collaboration and co-creation. Here, we summarize key advances and knowledge gaps of impacts across volcanic
Authors
Natalia I. Deligne, Susanna F. Jenkins, Elinor S. Meredith, George T. Williams, Graham S. Leonard, Carol Stewart, Thomas M. Wilson, Sébastien Biass, Daniel M. Blake, Russell J. Blong, Costanza Bonadonna, Rodrigo Calderon B., Josh L. Hayes, David M. Johnston, Ben M. Kennedy, Christina R. Magill, Robin Spence, Kristi L. Wallace, John Wardman, Alanna M. Weir, Grant Wilson, Giulio Zuccaro
Progress in protecting air travel from volcanic ash clouds
The Eyjafjallajökull eruption of 2010 demonstrated the far-reaching impact of ash clouds and the vulnerability of our jet-based society to them, prompting a review of procedures to detect, warn, and forecast ash cloud hazards to aviation. The years since 2010 have seen marked improvements in satellite technology, more accurate ash-dispersion models that integrate simulations with observations, and
Authors
Larry G. Mastin, Michael J. Pavolonis, Samantha Engwell, Rory Clarkson, Claire Witham, Greg Brock, Ian Lisk, Marianne C. Guffanti, Andrew C. Tupper, David J. Schneider, Frances Beckett, Thomas J. Casadevall, Graham Rennie
Strengthening local volcano observatories through global collaborations
We consider the future of volcano observatories in a world where new satellite technologies and global data initiatives have greatly expanded over the last two decades. Observatories remain the critical tie between the decision-making authorities and monitoring data. In the coming decade, the global scientific community needs to continue to collaborate in a manner that will strengthen volcano obse
Authors
Jacob B. Lowenstern, John W. Ewert, Andrew Lockhart
Volcanic air pollution and human health: Recent advances and future directions
Volcanic air pollution from both explosive and effusive activity can affect large populations as far as thousands of kilometers away from the source, for days to decades or even centuries. Here, we summarize key advances and prospects in the assessment of health hazards, effects, risk, and management. Recent advances include standardized ash assessment methods to characterize the multiple physicoc
Authors
Carol Stewart, David Damby, Claire J. Horwell, Tamar Elias, Evgenia Ilyinskaya, Ines Tomasek, Bernadette Longo, Anja Schmidt, Hanne Carlsen, Emily Mason, Peter J. Baxter, Shane Cronin, Claire Witham
Crater growth and lava-lake dynamics revealed through multitemporal terrestrial lidar scanning at Kīlauea Volcano, Hawaiʻi
Lava lake surfaces display the tops of active magma columns and respond to eruption variables such as magmatic pressure, convection, degassing, and cooling, as well as interactions with the craters that contain them. However, they are challenging to study owing to the numerous hazards that accompany these eruptions, and they are typically difficult to observe because the emitted gas plumes obscure
Authors
Adam L. LeWinter, Steve W. Anderson, David C. Finnegan, Matthew R. Patrick, Tim R. Orr
Multi-model comparison of computed debris flow runout for the 9 January 2018 Montecito, California post-wildfire event
Hazard assessment for post-wildfire debris flows, which are common in the steep terrain of the western United States, has focused on the susceptibility of upstream basins to generate debris flows. However, reducing public exposure to this hazard also requires an assessment of hazards in downstream areas that might be inundated during debris flow runout. Debris flow runout models are widely availab
Authors
Katherine R. Barnhart, Ryan P. Jones, David L. George, Brian W. McArdell, Francis K. Rengers, Dennis M. Staley, Jason W. Kean
Syn-eruptive hydration of volcanic ash records pyroclast-water interaction in explosive eruptions
Magma-water interaction can dramatically influence the explosivity of volcanic eruptions. However, syn- and post-eruptive diffusion of external (non-magmatic) water into volcanic glass remains poorly constrained and may bias interpretation of water in juvenile products. Hydrogen isotopes in ash from the 2009 eruption of Redoubt Volcano, Alaska, record syn-eruptive hydration by vaporized glacial me
Authors
Michael R. Hudak, Ilya N. Bindeman, Matthew W. Loewen, Thomas Giachetti
Quantifying non-thermal silicate weathering using Ge/Si and Si isotopes in rivers draining the Yellowstone Plateau Volcanic Field, USA
In active volcanic regions, high-temperature chemical reactions in the hydrothermal system consume CO2 sourced from magma or from the deep crust, whereas reactions with silicates at shallow depths mainly consume atmospheric CO2. Numerous studies have quantified the load of dissolved solids in rivers that drain volcanic regions to determine chemical weathering rates and atmospheric CO2 consumption
Authors
François Gaspard, Sophie Opfergelt, Catherine Hirst, Shaul Hurwitz, R. Blaine McCleskey, Petra Zahajska, Daniel J. Conley, Pierre Delmelle
Tracking secondary lahar flow paths and characterizing pulses and surges using infrasound array networks at Volcán de Fuego, Guatemala
Lahars are one of the greatest hazards at many volcanoes, including Volcán de Fuego (Guatemala). On 1 December 2018 at 8:00pm local Guatemala time (2:00:00 UTC), an hour-long lahar event was detected at Volcán de Fuego by two permanent seismo-acoustic stations along the Las Lajas channel on the southeast side. To establish the timing, duration, and speed of the lahar, infrasound array records were
Authors
Ashley Bosa, Jeffery Johnson, Silvio DeAngelis, John J. Lyons, Amilcar Roca, Jacob Anderson, Armando Pineda
A decade of geodetic change at Kīlauea’s summit—Observations, interpretations, and unanswered questions from studies of the 2008–2018 Halemaʻumaʻu eruption
On March 19, 2008, a small explosion heralded the onset of an extraordinary eruption at the summit of Kīlauea Volcano. The following 10 years provided unprecedented access to an actively circulating lava lake located within a region monitored by numerous geodetic tools, including Global Navigation Satellite System (GNSS), interferometric synthetic aperture radar (InSAR), tilt, and gravity. These d
Authors
Michael P. Poland, Asta Miklius, Ingrid A. Johanson, Kyle R. Anderson