Publications
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The 2018 rift eruption and summit collapse of Kilauea Volcano 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...
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 A. Johanson, Kevan Kamibayashi, James P. Kauahikaua, R. Lopaka Lee, S. Pekalib, Asta Miklius, Brian Shiro, Don Swanson, Patricia A. Nadeau, Michael H. Zoeller, P. Okubo, Carolyn Parcheta, Matthew R. Patrick, William Tollett, Frank A. Trusdell, Edward F. Younger, Emily K. 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 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...
Authors
Angelo Battaglia, J. Maarten de Moor, Alessandro Aiuppa, Geoffroy Avard, Henriette Bakkar, Marcello Bitetto, M. M. Mora Fernandez, Peter J. Kelly, Gaetano Giudice, Dario Delle Donne, Hairo Villalobos
Warming effects of spring rainfall increase methane emissions from thawing permafrost 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...
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
Geochemical and petrological diversity of mafic magmas from Mount St. Helens Geochemical and petrological diversity of mafic magmas from Mount St. Helens
Quaternary eruptive products in the Cascade arc include a variety of different basalt types. At Mount St. Helens (MSH), the most active volcano in the Cascades throughout the last 35 ka, three different mafic endmembers erupted at the end of the Castle Creek period (1900–1700 years B.P.): (1) high-field strength element (HFSE)-rich basalt enriched in K, Ti, P, and incompatible trace...
Authors
Maren Wanke, Olivier Bachmann, Albrecht von Quadt Wykradt-Huchtenbruck, Torsten W. Vennemann, Michael A. Clynne
Eruption and fountaining dynamics of selected 1985–1986 high fountaining episodes at Kīlauea volcano, Hawai'i, from quantitative vesicle microtexture analysis 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...
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 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...
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
Erratics and other evidence of late Wisconsin Missoula outburst floods in lower Wenatchee and Columbia valleys, Washington Erratics and other evidence of late Wisconsin Missoula outburst floods in lower Wenatchee and Columbia valleys, Washington
The Pleistocene Missoula floods through eastern and central Washington are by peak flow rate (discharge) the greatest freshwater cataclysms known on Earth. Newly explored features along the Wenatchee reach of Columbia valley give new evidence and revise earlier interpretations of size, frequency, and routing of megafloods. Crystalline-rock erratics derived far northeast lie scattered...
Authors
Richard B. Waitt, William Long, Kelsay M. Stanton
Volcanic ash resuspension from the Katmai Region Volcanic ash resuspension from the Katmai Region
Volcanic ash is not only a hazard during an eruptive event; in strong winds, previously deposited loose volcanic ash can be picked up and reworked into dust clouds. Resuspension and transport of fine-grained volcanic ash from Katmai National Park and Preserve, Alaska has been observed and documented many times over the past several decades and has likely been occurring throughout the...
Authors
Kristi L. Wallace, Hans Schwaiger
Volcanic hazards in Alaska’s National Parks Volcanic hazards in Alaska’s National Parks
There are over 100 volcanoes in Alaska, 54 of which are considered historically active. A historically active volcano is one that fits one of the following criteria: a documented or strongly suspected eruption since the year 1700, persistent fumaroles near boiling point, significant deformation with a volcanic cause, or an earthquake swarm with a volcanic cause (Cameron and Schaefer...
Authors
Katherine Mulliken, Kristi L. Wallace, Cheryl Cameron, Christopher F. Waythomas
Twenty years (1990–2010) of geodetic monitoring of Galeras volcano (Colombia) from continuous tilt measurements. 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...
Authors
Lourdes Narvaez Medina, Dario F Arcos, Maurizio Battaglia
Assessment of the potential for in-plume sulphur dioxide gas-ash interactions to influence the respiratory toxicity of volcanic ash Assessment of the potential for in-plume sulphur dioxide gas-ash interactions to influence the respiratory toxicity of volcanic ash
Background Volcanic 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...
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
A 15-year catalog of more than 1 million low-frequency earthquakes: Tracking tremor and slip along the deep San Andreas Fault A 15-year catalog of more than 1 million low-frequency earthquakes: Tracking tremor and slip along the deep San Andreas Fault
Low-frequency earthquakes (LFEs) are small, rapidly recurring slip events that occur on the deep extensions of some major faults. Their collective activation is often observed as a semi-continuous signal known as tectonic (or non-volcanic) tremor. This manuscript presents a catalog of more than 1 million LFEs detected along the central San Andreas Fault from 2001-2016. These events have...
Authors
David R. Shelly