Publications
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The late Pleistocene Sacarosa tephra-fall deposit, Misti Volcano, Arequipa, Peru: Its magma, eruption, and implications for past and future activity
Between 38.5 ka cal BP and 32.4 ka cal BP, a dacitic Volcanic Explosivity Index 5 eruption at Misti volcano emplaced the Sacarosa tephra-fall deposit. Its biotite phenocrysts, fine grain size, scarce lithics, and abundant loose crystals characterize the deposit at locations sampled. The eruption’s ~ 800 °C magma rose rapidly from ~ 10 km depth, culminating in a Plinian eruption which reached a mas
Authors
Christopher Harpel, JJ Cuno, Marie K. Takach, M. Rivera, Rigoberto Aguilar, Frank III Tepley, F. Garcia-Arenal
The 2018 eruption of Kīlauea: Insights, puzzles, and opportunities for volcano science
The science of volcanology advances disproportionately during exceptionally large or well-observed eruptions. The 2018 eruption of Kīlauea Volcano (Hawai‘i) was its most impactful in centuries, involving an outpouring of more than one cubic kilometer of basalt, a magnitude 7 flank earthquake, and the volcano’s largest summit collapse since at least the nineteenth century. Eruptive activity was doc
Authors
Kyle R. Anderson, Tom Shea, Kendra J. Lynn, Emily Montgomery-Brown, Donald A. Swanson, Matthew R. Patrick, Brian Shiro, Christina A. Neal
Tracking carbon from subduction to outgassing along the Aleutian-Alaska Volcanic Arc
Subduction transports volatiles between Earth’s mantle, crust, and atmosphere, ultimately creating a habitable Earth. We use isotopes to track carbon from subduction to outgassing along the Aleutian-Alaska Arc. We find substantial along-strike variations in the isotopic composition of volcanic gases, explained by different recycling efficiencies of subducting carbon to the atmosphere via arc volca
Authors
Taryn Lopez, Tobias P. Fischer, Terry Plank, Alberto Malinverno, Andrea Rizzo, Daniel J. Rasmussen, Elizabeth Cottrell, Cynthia Werner, Christoph Kern, Deborah Bergfeld, Tehnuka Ilanko, Janine L. Andrys, Katherine A. Kelley
A one-dimensional volcanic plume model for predicting ash aggregation
During explosive volcanic eruptions, volcanic ash is ejected into the atmosphere, impacting aircraft safety and downwind communities. These volcanic clouds tend to be dominated by fine ash (<63 μm in diameter), permitting transport over hundreds to thousands of kilometers. However, field observations show that much of this fine ash aggregates into clusters or pellets with faster settling velocitie
Authors
Davis W. Hoffman, Larry G. Mastin, Alexa R. Van Eaton, Stephen A. Solovitz, Raul B. Cal, John K. Eaton
The relation between decadal droughts and eruptions of Steamboat Geyser in Yellowstone National Park, USA
In the past century, most eruptions of Steamboat Geyser in Yellowstone National Park's Norris Geyser Basin were mainly clustered in three episodes: 1961–1969, 1982–1984, and ongoing since 2018. These eruptive episodes resulted in extensive disturbance to surrounding trees. To characterize tree response over time as an indicator of geyser activity adjustments to climate variability, aerial and grou
Authors
Shaul Hurwitz, John C. King, Gregory T. Pederson, Mara H. Reed, Lauren N Harrison, Jefferson Hungerford, R. Greg Vaughan, Michael Manga
New insights into the relationship between mass eruption rate and volcanic column height based on the IVESPA dataset
Rapid and simple estimation of the mass eruption rate (MER) from column height is essential for real-time volcanic hazard management and reconstruction of past explosive eruptions. Using 134 eruptive events from the new Independent Volcanic Eruption Source Parameter Archive (IVESPA, v1.0), we explore empirical MER-height relationships for four measures of column height: spreading level, sulfur dio
Authors
Thomas J. Aubry, Samantha Engwell, Costanza Bonadonna, Larry G. Mastin, Guillaume Carazzo, Alexa R. Van Eaton, David E. Jessop, Roy G. Grainger, Simona Scollo, Isabelle A Taylor, A. Mark Jellinek, Anja Schmidt, Sebastien Biass, Mathieu Gouhier
An algorithm for correction of atmospheric scattering dilution effects in volcanic gas emission measurements using skylight differential optical absorption spectroscopy
Differential Optical Absorption Spectroscopy (DOAS) is commonly used to measure gas emissions from volcanoes. DOAS instruments measure the absorption of solar ultraviolet (UV) radiation scattered in the atmosphere by sulfur dioxide (SO2) and other trace gases contained in volcanic plumes. The standard spectral retrieval methods assume that all measured light comes from behind the plume and has pas
Authors
Bo Galle, Santiago Arellano, Mattias Johansson, Christoph Kern, Melissa Pfeffer
Ring fault creep drives volcano-tectonic seismicity during caldera collapse of Kīlauea in 2018
Basaltic caldera collapses are episodic, producing very-long-period (VLP) earthquakes up to Mw 5.4, with prolific inter-collapse (between collapses) volcano-tectonic (VT) seismicity. During the 2018 caldera collapse of Kīlauea Volcano, VT seismicity ceased following each collapse, and then accelerated to a quasi-steady rate prior to the next collapse, marking a temporal pattern distinct from typic
Authors
Taiyi A. Wang, Paul Segall, Alicia J. Hotovec-Ellis, Kyle R. Anderson, Peter F. Cervelli
Introduction to the special section on seismoacoustics and seismoacoustic data fusion
A variety of geophysical hazards (e.g., volcanic activity, earthquakes, mass movements, marine storms, bolides) and anthropogenic sources (e.g., chemical and nuclear explosions, mining blasts, rocket launches) can release energy as mechanical waves in the ground, ocean, and atmosphere (Arrowsmith et al., 2010; Campus and Christie, 2009). Due to the mechanical coupling between a planetary body, its
Authors
Fransiska K. Dannemann Dugick, Jordan W. Bishop, Léo Martire, Alexandra M. Iezzi, Jelle D. Assink, Quentin Brissaud, Stephen Arrowsmith
Ash aggregate-rich pyroclastic density currents of the 431 CE Tierra Blanca Joven eruption, Ilopango caldera, El Salvador
The VEI 6, Tierra Blanca Joven pyroclastic sequence (30–90 km3 DRE volume), erupted from Ilopango caldera, El Salvador, in 431 CE, is the product of one of the largest eruptions of the last two millennia. The eruption devastated Central America's Mayan civilization. The eruption began with a short-lived phase of ash and pumice fall deposition and transitioned to a ‘wet’ explosive phase during whic
Authors
Richard J. Brown, Alexa R. Van Eaton, Walter Hernandez, Pearce Condren, Clare Sweeney, Pierre-Yves Tournigand, James W. Vallance
Lightning rings and gravity waves: Insights into the giant eruption plumefrom Tonga’s Hunga Volcano on 15 January 2022
On 15 January 2022, Hunga Volcano in Tonga produced the most violent eruption in the modern satellite era, sending a water-rich plume at least 58 km high. Using a combination of satellite- and ground-based sensors, we investigate the astonishing rate of volcanic lightning (>2,600 flashes min−1) and what it reveals about the dynamics of the submarine eruption. In map view, lightning locations form
Authors
Alexa R. Van Eaton, Jeff Lapierre, Sonja A. Behnke, Chris Vagasky, Christopher J. Schultz, Michael J. Pavolonis, Kristopher Bedka, Konstantin Khlopenkov
High-resolution InSAR reveals localized pre-eruptive deformation inside the crater of Agung Volcano, Indonesia
During a volcanic crisis, high-rate, localized deformation can indicate magma close to the surface, with important implications for eruption forecasting. However, only a few such examples have been reported, because frequent, dense monitoring is needed. High-resolution Synthetic Aperture Radar (SAR) is capable of achieving <1 m spatial resolution and sub-weekly revisit times, but is under-used. He
Authors
Mark Bemelmans, Juliet Biggs, Michael P. Poland, James Wookey, Susanna Ebmeier, Angela K. Diefenbach, Devy Damil Syahbana