Publications
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Lava lake thermal pattern classification using self organizing maps and relationships to eruption processes at Kilauea Volcano, Hawaii
Kīlauea Volcano’s active summit lava lake poses hazards to downwind residents and over 1.6 million Hawai‘i Volcanoes National Park visitors each year. The lava lake surface is dynamic; crustal plates separated by incandescent cracks move across the lake as magma circulates below. We hypothesize that these dynamic thermal patterns are related to changes in other volcanic processes, such that sequen
Authors
Amy M Burzynski, Steve W. Anderson, Kerryn Morrison, Matthew R. Patrick, Tim R. Orr, Weston Thelen
Controls on lava lake level at Halema‘uma‘u Crater, Kīlauea Volcano
The height of the lava column is a fundamental measure of open-vent volcanic activity, but little continuous long-term data exist to understand this parameter. The recent (2008-2018) lava lake activity at the summit of Kīlauea Volcano provides a unique opportunity to track and understand the processes that control lava level over timescales ranging from minutes to years. We review recently publi
Authors
Matthew R. Patrick, Donald A. Swanson, Tim R. Orr
Space-based imaging radar studies of U.S. volcanoes
The arrival of space-based imaging radar as a revolutionary land-surface mapping and monitoring tool little more than a quarter century ago enabled a spate of innovative volcano research worldwide. Soon after launch of European Space Agency’s ERS-1 spacecraft in 1991, the U.S. Geological Survey began SAR and InSAR studies of volcanoes in the Aleutian and Cascades arcs, in Hawai’i, and elsewhere in
Authors
Daniel Dzurisin, Zhong Lu, Michael P. Poland, Charles W. Wicks
Lava flow morphology at an erupting andesitic stratovolcano: A satellite perspective on El Reventador, Ecuador
Lava flows pose a significant hazard to infrastructure and property located close to volcanoes, and understanding how flows advance is necessary to manage volcanic hazard during eruptions. Compared to low-silica basaltic flows, flows of andesitic composition are infrequently erupted and so relatively few studies of their characteristics and behaviour exist. We use El Reventador, Ecuador as a targe
Authors
David W. D. Arnold, Juliet Biggs, Hannah R. Dietterich, Silvia Vallejo Vargas, Geoffrey Wadge, Patricia Mothes
Hydrogen isotopes in high 3He/4He submarine basalts: Primordial vs. recycled water and the veil of mantle enrichment
The hydrogen isotope value (δD) of water indigenous to the mantle is masked by the early degassing and recycling of surface water through Earth's history. High 3He/4He ratios in some ocean island basalts, however, provide a clear geochemical signature of deep, primordial mantle that has been isolated within the Earth's interior from melting, degassing, and convective mixing with the upper mantle.
Authors
Matthew W. Loewen, David W. Graham, Ilya N. Bindeman, John E. Lupton, Michael O. Garcia
The 2018 rift eruption and summit collapse of Kilauea Volcano
In 2018, Kīlauea Volcano experienced its largest lower East Rift Zone (LERZ) eruption and caldera collapse in at least 200 years. After collapse of the Pu'u 'Ō'ō vent on 30 April, magma propagated downrift. Eruptive fissures opened in the LERZ on 3 May, eventually extending ~6.8 km. A 4 May earthquake (M6.9) produced ~5 m of fault slip. Lava erupted at rates exceeding 100 m3/s, eventually coveri
Authors
Christina A. Neal, Steven Brantley, Loren Antolik, Janet Babb, Matthew K. Burgess, Michael Cappos, Jefferson Chang, Sarah Conway, Liliana G. Desmither, Peter Dotray, Tamar Elias, Pauline Fukunaga, Steven Fuke, Ingrid Johanson, Kevan Kamibayashi, James P. Kauahikaua, R. Lopaka Lee, S. Pekalib, Asta Miklius, Brian Shiro, Don Swanson, Patricia Nadeau, Michael H. Zoeller, P. Okubo, Carolyn Parcheta, Matthew R. Patrick, William Tollett, Frank A. Trusdell, Edward F. Younger, Emily Montgomery-Brown, Kyle R. Anderson, Michael P. Poland, Jessica L. Ball, Joseph A. Bard, Michelle L. Coombs, Hannah R. Dietterich, Christoph Kern, Weston Thelen, Peter Cervelli, Tim R. Orr, Bruce F. Houghton, Cheryl Gansecki, Richard Hazlett, Paul Lundgren, Angela K. Diefenbach, Allan Lerner, Greg Waite, Peter J. Kelly, Laura E. Clor, Cynthia Werner, Katherine Mulliken, Gary B. Fisher, David Damby
Insights into the mechanisms of phreatic eruptions from continuous high frequency volcanic gas monitoring: Rincón de la Vieja volcano, Costa Rica
Understanding the trigger mechanisms of phreatic eruptions is key to mitigating the effects of these hazardous but poorly forecastable volcanic events. It has recently been established that high-rate volcanic gas observations are potentially very suitable to identifying the source processes driving phreatic eruptions, and to eventually detecting precursory changes prior to individual phreatic blas
Authors
Angelo Battaglia, J. Maarten de Moor, Alessandro Aiuppa, Geoffroy Avard, Henriette Bakkar, Marcello Bitetto, M. M. Mora Fernández, Peter J. Kelly, Gaetano Giudice, Dario Delle Donne, Hairo Villalobos
Warming effects of spring rainfall increase methane emissions from thawing permafrost
Methane emissions regulate the near‐term global warming potential of permafrost thaw, particularly where loss of ice‐rich permafrost converts forest and tundra into wetlands. Northern latitudes are expected to get warmer and wetter, and while there is consensus that warming will increase thaw and methane emissions, effects of increased precipitation are uncertain. At a thawing wetland complex in I
Authors
Rebecca B. Neumann, C.J. Moorberg, J.D. Lundquist, J.C. Turner, Mark P. Waldrop, Jack W. McFarland, E.S. Euskirchen, C.W. Edgar, M. R. Turetsky
Eruption and fountaining dynamics of selected 1985–1986 high fountaining episodes at Kīlauea volcano, Hawai'i, from quantitative vesicle microtexture analysis
Tephra from the early Hawaiian fountaining episodes of the ongoing eruption of Pu'u 'Ō'ō in the East Rift Zone (ERZ) of Kīlauea provides an opportunity to study the vesicle microtextures of pyroclasts erupted from a single vent over a prolonged period of time. We report the results of microtextural analysis of pyroclasts from five of Pu'u 'Ō'ō's high (>200 m) Hawaiian fountaining episodes (episode
Authors
S. J. Holt, R. J. Carey, B. F. Houghton, Tim R. Orr, J. McPhie, S. Feig
Thermal, deformation, and degassing remote sensing time-series (A.D. 2000-2017) at the 47 most active volcanoes in Latin America: Implications for volcanic systems
Volcanoes are hazardous to local and global populations, but only a fraction are continuously monitored by ground-based sensors. For example, in Latin America, more than 60% of Holocene volcanoes are unmonitored, meaning long-term multi-parameter datasets of volcanic activity are rare and sparse. We use satellite observations of degassing, thermal anomalies, and surface deformation spanning 17 yea
Authors
Kevin Reath, Matthew Pritchard, Michael P. Poland, F. Delgado, S. Carn, D. Coppola, B. J. Andrews, S.K. Ebmeier, M. Elise Rumpf, S. Henderson, S. Baker, P. Lundgren, R. Erik Wright, J. Biggs, T. Lopez, C. Wauthier, S. Moruzzi, A. Alcott, Rick Wessels, Julia P. Griswold, Sarah E. Ogburn, S. C. Loughlin, F. Meyer, R. Greg Vaughan, M. Bagnardi
Assessment of the potential for in-plume sulphur dioxide gas-ash interactions to influence the respiratory toxicity of volcanic ash
BackgroundVolcanic plumes are complex environments composed of gases and ash particles, where chemical and physical processes occur at different temperature and compositional regimes. Commonly, soluble sulphate- and chloride-bearing salts are formed on ash as gases interact with ash surfaces. Exposure to respirable volcanic ash following an eruption is potentially a significant health concern. The
Authors
Ines Tomasek, David Damby, Claire J. Horwell, Paul M Ayris, Pierre Delmelle, Christopher J Ottley, Pablo Cubillas, Ana S Casas, Christoph Bisig, Alke Petri-Fink, Donald B. Dingwell, Martin J D Clift, Barbara Drasler, Barbara Rothen-Rutishauser
Twenty years (1990–2010) of geodetic monitoring of Galeras volcano (Colombia) from continuous tilt measurements.
Galeras - an andesitic stratovolcano part of the Galeras Volcanic Complex - is one of the most active volcanoes in Colombia. Historic activity is centered on a small-volume cone inside the youngest amphitheater, which breaches the west flank of the volcano. At least 30 confirmed eruption periods have been recorded in the past 480 years, with episodes of unrest ranging from weak fumarolic activity
Authors
Lourdes Narvaez Medina, Dario F Arcos, Maurizio Battaglia