Publications
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Modulation of seismic activity in Kīlauea’s Upper East Rift Zone by summit pressurization Modulation of seismic activity in Kīlauea’s Upper East Rift Zone by summit pressurization
Kīlauea Volcano is underlain by a complex, laterally-extensive magmatic plumbing system. Although in recent decades it has mainly erupted through vents along the middle East Rift Zone and summit caldera, eruptions can occur anywhere along its two laterally extensive rift zones, as demonstrated by the dramatic eruptive activity of 2018. Forecasting eruptive activity requires an...
Authors
Christelle Wauthier, Diana C. Roman, Michael P. Poland
Real-time monitoring of debris-flow velocity and mass deformation from field experiments with high sample rate lidar and video Real-time monitoring of debris-flow velocity and mass deformation from field experiments with high sample rate lidar and video
Debris flows evolve in both time and space in complex ways, commonly starting as coherent failures but then quickly developing structures such as roll waves and surges. This process is readily observed, but difficult to study or quantify because of the speed at which it occurs. Many methods for studying debris flows consist of point measurements (e.g., of flow height or basal stresses)...
Authors
Francis K. Rengers, Thomas Rapstine, Kate E. Allstadt, Michael Olsen, Michael Bunn, Richard M. Iverson, Jason W. Kean, Ben Leshchinsky, Matthew Logan, Mahyar Sharifi-Mood, Maciej Obryk, Joel B. Smith
SUSTAIN drilling at Surtsey volcano, Iceland, tracks hydrothermal and microbiological interactions in basalt 50 years after eruption SUSTAIN drilling at Surtsey volcano, Iceland, tracks hydrothermal and microbiological interactions in basalt 50 years after eruption
The 2017 Surtsey Underwater volcanic System for Thermophiles, Alteration processes and INnovative concretes (SUSTAIN) drilling project at Surtsey volcano, sponsored in part by the International Continental Scientific Drilling Program (ICDP), provides precise observations of the hydrothermal, geochemical, geomagnetic, and microbiological changes that have occurred in basaltic tephra and...
Authors
M.D. Jackson, M.T. Gudmundsson, T.B. Weisenberger, J.M. Rhodes, A. Stefansson, B. Kleine, P.C. Lippert, J.M. Marquardt, H.I. Reynolds, J. Kuck, V.Th. Marteinsson, P. Vannier, W. Bach, A. Barich, P. Bergsten, J. G. Bryce, P. Cappelletti, S. Couper, M.F. Fahnestock, C. Gorny, C. Grimaldi, M. Groh, A. Gudmundsson, A.Th. Gunnlaugsson, C. Hamlin, Th. Hognadottir, K. Jonasson, S.S. Jonsson, S.L. Jorgensen, A. Klonowski, B.V. Marshall, J. McPhie, James G. Moore, E.S. Olafsson, S.L. Onstag, V. Perez, S. Prause, S.P. Snorasson, A. Türke, J.D.L. White, B. Zimanowski
3D electrical conductivity imaging of Halema‘uma‘u lava lake (Kīlauea volcano) 3D electrical conductivity imaging of Halema‘uma‘u lava lake (Kīlauea volcano)
Before the 2018 collapse of the summit of Kīlauea volcano, a ca. 200 m in diameter lava lake inside of Halema‘uma‘u crater was embedded in a very active hydrothermal system. In 2015, we carried out an electrical conductivity survey and the data were inverted in 3D. The lack of conductivity contrast precludes distinguishing the lava column from the surrounding hydrothermal zones...
Authors
Lydie Gailler, James P. Kauahikaua, Jean-Francois Lenat, Andre Revil, Marceau Gresse, Abdellahi Soueid Ahmed, Nicolas Cluzel, Geeth Manthilake, Lucia Gurioli, Tim B. Johnson, Anthony Finizola, Eric Delcher
Modeling ash dispersal from future eruptions of Taupo supervolcano Modeling ash dispersal from future eruptions of Taupo supervolcano
Hazard analysis at caldera volcanoes is challenging due to the wide range of eruptive and environmental conditions that can plausibly occur during renewed activity. Taupo volcano, New Zealand, is a frequently active and productive rhyolitic caldera volcano that has hosted the world's youngest known supereruption and numerous smaller explosive events. To assess ashfall hazard from future...
Authors
Simon J Barker, Alexa R. Van Eaton, Larry G. Mastin, Colin JN Wilson, Mary Anne Thompson, Tom M Wilson, Cory Davis, James A Renwick
Insights into pāhoehoe lava emplacement using visible and thermal structure-from-motion photogrammetry Insights into pāhoehoe lava emplacement using visible and thermal structure-from-motion photogrammetry
We present the evolution over 3 months of a 2016–2017 pāhoehoe flow at Kīlauea as it changed from a narrow sheet flow into a compound lava field fed by a stable system of tubes. The portion of the flow located on Kīlauea's coastal plain was characterized using helicopter‐based visible and thermal structure‐from‐motion photogrammetry to construct a series of georeferenced digital surface...
Authors
Sebastien Biass, Tim R. Orr, Bruce F. Houghton, Matthew R. Patrick, Mike R. James, Nick Turner
Variability in shelf sedimentation in response to fluvial sediment supply and coastal erosion over the past 1,000 years in Monterey Bay, CA, United States Variability in shelf sedimentation in response to fluvial sediment supply and coastal erosion over the past 1,000 years in Monterey Bay, CA, United States
Continental shelf environments are uniquely situated to capture some of the most dynamic processes on Earth including climatic variability and anthropogenic modifications to coastal systems. Understanding how these processes have affected sediment delivery and accumulation on the shelf in the past may provide insight into potential changes in the future. To address this, we investigated...
Authors
Joseph Carlin, Jason A. Addison, Amy Wagner, Valerie Evelyn Schwartz, Jamie Hayward, Victoria Severin
A global synthesis of lava lake dynamics A global synthesis of lava lake dynamics
Active lava lakes represent a variety of open-vent volcanism in which a sizeable body of lava accumulates at the top of the magma column, constrained by the vent and/or crater geometry. The longevity of lava lakes reflects a balancing of cooling and outgassing occurring at the surface by input of hot and gas-rich magma from below. Due to their longevity and relative accessibility, lava...
Authors
Einat Lev, Philipp Ruprecht, Clive Oppenheimer, Nial Peters, Matthew R. Patrick, Pedro Hernandez, Letizia Spampinato, Jeffrey J. Marlow
Monitoring volcanic deformation Monitoring volcanic deformation
Whereas research in volcano geodesy seeks to push the boundaries of our knowledge of the physics of volcanoes, monitoring looks at changes in volcano behavior to predict when a volcanic crisis might develop. To be effective, geodetic monitoring must be done before, during, and after eruptions and must be integrated with other monitoring techniques. It requires the type of long-term...
Authors
Maurizio Battaglia, Jorge Alpala, Rosa Alpala, Mario Angarita, Dario Arcos, Leonardo Eullides, Pablo Euillades, Cyrill Mueller, Lourdes Narvaez
The Orange Tuff: A Late Pleistocene tephra-fall deposit emplaced by a VEI 5 silicic Plinian eruption in West Java, Indonesia The Orange Tuff: A Late Pleistocene tephra-fall deposit emplaced by a VEI 5 silicic Plinian eruption in West Java, Indonesia
A VEI 5 dacite eruption emplaced the Orange Tuff about between 34.3 cal kBP and 17.2 cal kBP. Gunung Salak is the unit’s source and the Orange Tuff represents the most recent such eruption from any of the volcanoes southwest of Bogor, Indonesia. The Orange Tuff is the region’s first such documented tephra-fall deposit whose characteristics and phenocryst geochemistry make it readily...
Authors
Christopher Harpel, Kushendratno, James Stimac, Cecilia F. Avendano Rodriguez de Harpel, Sofyan Primulyana
Volcano deformation: Insights into magmatic systems Volcano deformation: Insights into magmatic systems
Volcano geodesy is the branch of geodetic science that deals with the changing shapes of volcanoes, whether large or small, deep-seated or surficial. Together with seismicity and volcanic gas flux, deformation of the ground surface can be a key indicator of subsurface conditions and processes at volcanoes—information that not only improves scientific understanding of magmatic systems but...
Authors
Daniel Dzurisin
A unified catalog of earthquake hypocenters and magnitudes at volcanoes in Alaska—1989 to 2018 A unified catalog of earthquake hypocenters and magnitudes at volcanoes in Alaska—1989 to 2018
The Alaska Volcano Observatory (AVO) has maintained an earthquake catalog since 1989 that now contains over 120,000 hypocenters and magnitudes that occurred near Alaskan volcanoes. Since 1989 the seismic instrumentation and data acquisition and processing techniques have undergone numerous changes as computer systems and seismic processing software have advanced and evolved. In this...
Authors
John Power, Paul A. Friberg, Matthew M. Haney, Thomas Parker, Scott D. Stihler, James P. Dixon