Publications
Filter Total Items: 3143
Erupted volume during the 2014–2023 Semisopochnoi unrest and eruption constrained by multi-platform InSAR and volcanic gas observations Erupted volume during the 2014–2023 Semisopochnoi unrest and eruption constrained by multi-platform InSAR and volcanic gas observations
Volcano deformation data provide important constraints on magma dynamics during volcanic unrest and eruptions. From these observations, we can estimate subsurface pressure changes and relate them to volume change in the reservoir. However, because magma and rock are compressible, this volume change cannot be directly equated with eruptive volume. When we combine geodetic analyses with...
Authors
Mario Angarita, Valerie Wasser, Ronni Grapenthin, Allan Lerner, Taryn Lopez, Revathy M. Parameswaran, John J. Lyons
Dismembering the Lava Creek Tuff, Yellowstone volcano Dismembering the Lava Creek Tuff, Yellowstone volcano
The youngest large explosive eruption of Yellowstone volcano generated the 0.63 Ma Lava Creek Tuff (LCT) ignimbrite and a voluminous, widespread fall deposit accompanying formation of Yellowstone Caldera. The tuff is conventionally divided into members A (LCT-A) and B (LCT-B), defined by a reversal in density/welding profiles and the presence of phenocrystic amphibole in LCT-A. Remapping...
Authors
Stacy L. Henderson, Madison L. Myers, Mark E. Stelten, Colin J.N. Wilson
Insights from more than a year of ongoing episodic lava fountaining at Kilauea Insights from more than a year of ongoing episodic lava fountaining at Kilauea
Episodic lava fountaining is rare globally, with only three occurrences from Kīlauea (Hawaii) since 1823. Beginning in December 2024, an eruption within the summit crater, Halemaʻumaʻu, has produced 52 fountaining episodes to date, each lasting typically for hours and separated by days to weeks. Although multiple mechanisms have been proposed, fundamental questions remain about how magma...
Authors
Ashton F. Flinders, Natalia I. Deligne, Ken Hon, Drew T. Downs, Kendra J. Lynn, Patricia A. Nadeau, Katie Mulliken, Jefferson C. Chang, Peter J. Dotray, Marco Bagnardi, Ingrid A. Johanson, Michael H. Zoeller, Kyle R. Anderson, Matthew R. Patrick, Christoph Kern, Christine Ruth Sealing, Michael P. Poland, David Alan Phillips, Michael Cappos, Liliana G. Desmither, Andria P. Ellis, Steven Fuke, Pauline N. Fukunaga, Madeline Kaliko Hawk, Thomas-Jon Kekoa Hiroaki Hoomanawanui, John David Jamora, Albert Keliiaimoku Kamake'eaina, Kevan Kamibayashi, William Tollett, Kody Rubio, Seth Soren Swaney, S. Miki Warren, Heather Brianne Winslow, Ninfa Lucia Bennington, Arthur Jolly, R.G. Adams, M. Decker, L. Forster, Elisabeth Gallant, Cheryl Gansecki, Richard W. Hazlett, B.F. Houghton, N. Kohagura, S. Lundblad, N.G. Pasqualon, K. Poepoe, Hannah Kelsay Neuman, C. Cauley, K. Wilde
2023 Volcanic activity in Alaska and the Northern Mariana Islands—Summary of events and response of the Alaska Volcano Observatory 2023 Volcanic activity in Alaska and the Northern Mariana Islands—Summary of events and response of the Alaska Volcano Observatory
No abstract available.
Authors
Jordan Edward Lubbers, Abigail M. Nastan, Matthew W. Loewen, David Fee, Darren Tan, Ronni Grapenthin, Skye Kushner, Tara Shreve, Matthew M. Haney, Kristi L. Wallace, Christopher F. Waythomas, John A. Power, Yitian Cheng, Aaron Wech, Hannah R. Dietterich
Volcanoes are mighty mountains Volcanoes are mighty mountains
Volcanoes are evidence of the remarkable journey of molten rock, which begins miles (kilometers) beneath our feet. What happens on magma’s ascent determines whether it erupts explosively (like Mount St. Helens on May 18, 1980), oozes lava (like Mount St. Helens during its 2004–2008 dome-building event), or cools and crystallizes underground, never to erupt at all. This two-page...
Authors
Elizabeth G. Westby, Kimber Petersen, Sonja Melander
Pre-eruptive volatiles and magma storage depth for the 2018 eruption at Mount Veniaminof, Alaska Pre-eruptive volatiles and magma storage depth for the 2018 eruption at Mount Veniaminof, Alaska
Mount Veniaminof is a frequently active, open-system arc volcano on the Alaska Peninsula, part of the Alaska-Aleutian arc. Mount Veniaminof's September–December 2018 eruption began with small lava flows and culminated in a larger explosive event in November that produced a 450 km long continuous ash plume—one of the volcano's most significant ash-producing events in recently observed...
Authors
Ellyn G. Huggins, Phillipp Ruprecht, Matthew W. Loewen, M. Gavrilenko, R.J. Bodnar, M. Harlaux
dMODELS, a MATLAB software package for modeling crustal deformation near volcanic centers and active faults using Global Navigation Satellite System data—User guide dMODELS, a MATLAB software package for modeling crustal deformation near volcanic centers and active faults using Global Navigation Satellite System data—User guide
dMODELS is a MATLAB software package that implements the most common analytical models used to interpret deformation measurements near faults and active volcanic centers. This manual focuses on inversion of deformation data from the Global Navigation Satellite System (GNSS). The included case studies emphasize the GNSS inversion component of the software. Source models include...
Authors
Maurizio Battaglia, Deja Celestine, D. Sarah Stamps
In vitro assessment of human alveolar epithelial responses to acute combined exposure to volcanic ash and sulphur dioxide gas In vitro assessment of human alveolar epithelial responses to acute combined exposure to volcanic ash and sulphur dioxide gas
Volcanic activity releases sulphur dioxide (SO₂) gas and fine particulate matter that may degrade air quality in populated areas, yet the effects of combined exposure remain insufficiently characterised. We examined the biological effects of acute combined exposure to volcanic ash and SO₂ in human alveolar epithelial cells (A549) maintained at the air-liquid interface. Cells were exposed...
Authors
Ines Tomasek, Fanny Henrioux, Julia Eychenne, David E. Damby, Matthieu Jabaudon, Antoine Mathieu, Clara Gorce, Gaelle Uzu, Simon Falvard, Regine Minet-Quinard, Corinne Belville, Loic Blanchon, Vincent Sapin
Satellite observations, plume dynamics and volcanic lightning from the 2023 eruption of Shishaldin Volcano, Alaska Satellite observations, plume dynamics and volcanic lightning from the 2023 eruption of Shishaldin Volcano, Alaska
The 2023 eruption of Shishaldin Volcano, Alaska, provided an unusually well-monitored example of a “dry” (non-hydromagmatic) explosive basaltic eruption with sustained, buoyant plumes, and pyroclastic density currents. Here, we examine the 13 basaltic paroxysms that occurred between July and November 2023 using geostationary satellite observations, plume modeling, and volcanic lightning...
Authors
Rui Mota, Alexa R. Van Eaton, Larry G. Mastin, David J. Schneider, Hannah R. Dietterich, José Pacheco, Artur Gil
Delayed submarine caldera subsidence creates extreme tsunami hazard Delayed submarine caldera subsidence creates extreme tsunami hazard
The 2022 Hunga volcano eruption generated one of the largest and most destructive volcanic tsunamis ever recorded. We interpret the timing, nature and relative hazard of volcanic-tsunamigenic processes by combining geophysical, oceanographic, atmospheric, and eye-witness observations of this event. Hydro-acoustic signal (T waves) detected on seismic stations up to 2600 km away provided a...
Authors
Shane J. Cronin, Bastian Steinke, Jose C. Borrero, Emile A. Okal, Marta Ribó, Jie Wu, James D.L. White, Marco Brenna, Joali Paredes-Mariño, Mila Huebsch, Rachel Baxter, Ulrich Speidel, Alexa R. Van Eaton, Larry G. Mastin, Michael A. Clare, Isobel A. Yeo, James E. Hunt, Jacob Nash, James B. Garvin, Rennie Vaiomounga, Taaniela Kula, Sung-Hyun Park
The eruptive behavior of distributed volcanism forming low shield edifices—A case study of Sentinel-Arlington volcanic field, U.S.A. The eruptive behavior of distributed volcanism forming low shield edifices—A case study of Sentinel-Arlington volcanic field, U.S.A.
Distributed volcanic fields are present in various tectonic settings worldwide, and their characteristics reflect differing influences from magmatic and tectonic processes. In the southwestern United States alone, there are 37 Quaternary distributed volcanic fields. After the primary period of extensional tectonics in the southern Basin and Range 15–5 million years ago, the Sentinel...
Authors
Jisoo Kim, J. Ramón Arrowsmith, Amanda B. Clarke, Kurt Roggensack, Steven Semken, Kara Brugman