Volcano Hazards Program Office

Publications

Filter Total Items: 2,302
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Year Published: 2021

Reconstructing the dynamics of the highly similar May 2016 and June 2019 Iliamna Volcano, Alaska ice–rock avalanches from seismoacoustic data

Surficial mass wasting events are a hazard worldwide. Seismic and acoustic signals from these often remote processes, combined with other geophysical observations, can provide key information for monitoring and rapid response efforts and enhance our understanding of event dynamics. Here, we present seismoacoustic data and analyses for two very...

Toney, Liam De La Hunt; Fee, David; Allstadt, Kate; Haney, Matthew M.; Matoza, Robin S.

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Year Published: 2021

Earthquakes indicated magma viscosity during Kīlauea’s 2018 eruption

Magma viscosity strongly controls the style (for example, explosive versus effusive) of a volcanic eruption and thus its hazard potential, but can only be measured during or after an eruption. The identification of precursors indicative of magma viscosity would enable forecasting of the eruption style and the scale of associated hazards1. The...

Roman, Diana; Soldati, Arianna; Dingwell, Donald Bruce; Houghton, Bruce F.; Shiro, Brian

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Year Published: 2021

Synoptic analysis of a decade of daily measurements of SO2 emission in the troposphere from volcanoes of the global ground-based Network for Observation of Volcanic and Atmospheric Change

Volcanic plumes are common and far-reaching manifestations of volcanic activity during and between eruptions. Observations of the rate of emission and composition of volcanic plumes are essential to recognize and, in some cases, predict the state of volcanic activity. Measurements of the size and location of the plumes are important to assess the...

Arellano, Santiago; Galle, Bo; Apaza, Fredy; Avard, Geoffroy; Barrington, Charlotte; Bobrowski, Nicole; Bucarey, Claudia; Burbano, Viviana; Burton, Mike; Chacon, Zoraida; Chigna, Gustavo; Clarito, Christian Joseph; Conde, Vladimir; Costa, Fidel; de Moor, Maarten; Delgado-Granados, Hugo; Di Muro, Andrea; Fernandez, D.; Garzon, Gustavo; Gunawan, Hendra; Haerani, Nia; Hansteen, Thor; Hidalgo, Silvana; Inguaggiato, Salvatore; Johansson, Mattias; Kern, Christoph; Kihlman, Manne; Kowalski, Philippe; Masias, Pablo; Montalvo, Francisco; Moller, Joakim; Platt, Ulrich; Rivera, Claudia; Saballos, Armando; Salerno, Giuseppe; Taisne, Benoit; Vasconez, Freddy; Velazquez, Gabriela; Vita, Fabio; Yalire, Mathieu M.

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Year Published: 2021

A multidisciplinary investigation into the eruptive style, processes, and duration of a Cascades back-arc tholeiitic basalt: A case study of the Brushy Butte flow field, northern California, United States

The Cascades back-arc in northern California is dominated by monogenetic tholeiitic basalts that erupted throughout the Pleistocene. Elucidating their eruptive history and processes is important for understanding potential future eruptions here. We focus on the well-exposed monogenetic volcano that emplaced the Brushy Butte flow field, which...

Downs, Drew T.; Champion, Duane E.; Clynne, Michael A.; Muffler, L. J. Patrick

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Year Published: 2021

Lava effusion rate evolution and erupted volume during the 2018 Kīlauea lower East Rift Zone eruption

The 2018 eruption on the lower East Rift Zone of Kīlauea Volcano produced one of the largest and most destructive lava flows in Hawai’i during the past 200 years. Over the course of more than 3 months, twenty-four fissures erupted, and the rate of lava effusion varied by two orders of magnitude, with significant implications for evolving flow...

Dietterich, Hannah R.; Diefenbach, Angela K.; Soule, Adam; Zoeller, Michael H.; Patrick, Matthew R.; Major, J. J.; Lundgren, Paul

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Year Published: 2021

Yellowstone Volcano Observatory 2019 annual report

The Yellowstone Volcano Observatory (YVO) monitors volcanic and hydrothermal activity associated with the Yellowstone magmatic system, conducts research into magmatic processes occurring beneath Yellowstone Caldera, and issues timely warnings and guidance related to potential future geologic hazards. This report summarizes the activities and...

Yellowstone Volcano Observatory
Yellowstone Volcano Observatory, 2021, Yellowstone Volcano Observatory 2019 annual report: U.S. Geological Survey Circular 1473, 35 p., https://doi.org/10.3133/cir1473.

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Year Published: 2021

Submarine lava deltas of the 2018 eruption of Kilauea volcano

Hawaiian and other ocean island lava flows that reach the coastline can deposit significant volumes of lava in submarine deltas. The catastrophic collapse of these deltas represents one of the most significant, but least predictable, volcanic hazards at ocean islands. The volume of lava deposited below sea level in delta-forming eruptions and the...

Soule, Adam; Zoeller, Michael H.; Parcheta, Carolyn

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Year Published: 2021

The contribution of water radiolysis to marine sedimentary life

Water radiolysis continuously produces H2 and oxidized chemicals in wet sediment and rock. Radiolytic H2 has been identified as the primary electron donor (food) for microorganisms in continental aquifers kilometers below Earth’s surface. Radiolytic products may also be significant for sustaining life in subseafloor sediment and...

Sauvage, Justine F.; Flinders, Ashton; Spivack, Arthur J.; Pockalny, Robert; Dunlea, Ann G.; Anderson, Chloe H.; Smith, David; Murray, Richard W.; D’Hondt, Steven

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Year Published: 2021

Local explosion detection and infrasound localization by reverse time migration using 3-D finite-difference wave propagation

Infrasound data are routinely used to detect and locate volcanic and other explosions, using both arrays and single sensor networks. However, at local distances (<15 km) topography often complicates acoustic propagation, resulting in inaccurate acoustic travel times leading to biased source locations when assuming straight-line propagation....

Fee, David; Toney, Liam; Kim, Keehoon; Sanderson, Richard; Iezzi, Alexandra M.; Matoza, Robin S; DeAngelis, Silvio; Jolly, Art; Lyons, John J.; Haney, Matthew M.

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Year Published: 2021

Azorella compacta's long-term growth rate, longevity, and potential for dating geomorphological and archaeological features in the arid southern Peruvian Andes

We determine the long-term growth rate and longevity of an Azorella compacta growing on Misti volcano, near Arequipa, Peru to investigate the species' capacity as a geochronological resource. Using 14C dating on stem pieces sequestered within the plant's cushion, which grows larger through time, we obtain ages of 15 ± 15...

Harpel, Christopher; Kleier, Catherine; Aguilar, Rigoberto

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Year Published: 2021

Patterns of bubble bursting and weak explosive activity in an active lava lake—Halema‘uma‘u, Kīlauea, 2015

The rise of the Halemaʻumaʻu lava lake in 2013–2018 to depths commonly 40 meters or less below the rim of the vent was an excellent opportunity to study outgassing and the link to associated eruptive activity. We use videography to investigate the rise and bursting of bubbles through the free surface of the lake in 2015. We focus on low-energy...

Mintz, Bianca G.; Houghton, Bruce F.; Llewellin, Edward W.; Orr, Tim R.; Taddeucci, Jacopo; Carey, Rebecca J.; Kueppers, Ulrich; Gaudin, Damien; Patrick, Matthew R.; Burton, Michael; Scarlato, Piergiorgio; La Spina, Alessandro
Mintz, B.G., Houghton, B.F., Llewellin, E.W., Orr, T.R., Taddeucci, J., Carey, R.J., Kueppers, U., Gaudin, D., Patrick, M.R., Burton, M., Scarlato, P., and La Spina, A., 2021, Patterns of bubble bursting and weak explosive activity in an active lava lake—Halema‘uma‘u, Kīlauea, 2015, chap. E of Patrick, M., Orr, T., Swanson, D., and Houghton, B., eds., The 2008–2018 summit lava lake at Kīlauea Volcano, Hawai‘i: U.S. Geological Survey Professional Paper 1867, 16 p., https://doi.org/10.3133/pp1867E.

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Year Published: 2021

Indicators of volcanic eruptions revealed by global M4+ earthquakes

Determining whether seismicity near volcanoes is due primarily to tectonic or magmatic processes is a challenging but critical endeavor for volcanic eruption forecasting and detection, especially at poorly monitored volcanoes. Global statistics on the occurrence and timing of earthquakes near volcanoes both within and outside of eruptive periods...

Pesicek, Jeremy D.; Ogburn, Sarah E.; Prejean, Stephanie