Results 41 to 50 of about 3,718 (190)

Volatile metal emissions from volcanic degassing and lava–seawater interactions at Kīlauea Volcano, Hawai’i

Communications Earth & Environment, 2020
Volcanoes represent one of the largest natural sources of metals to the Earth’s surface. Emissions of these metals can have important impacts on the biosphere as pollutants or nutrients.
Emily M. Mason, P. Wieser, E. Liu, M. Edmonds, E. Ilyinskaya, Rachel C. W. Whitty, T. Mather, T. Elias, P. Nadeau, T. Wilkes, A. McGonigle, T. Pering, F. Mims, C. Kern, D. Schneider, C. Oppenheimer   +15 more
semanticscholar   +1 more source

Implementation of the NHI (Normalized Hot Spot Indices) Algorithm on Infrared ASTER Data: Results and Future Perspectives

Sensors, 2021
The Normalized Hotspot Indices (NHI) tool is a Google Earth Engine (GEE)-App developed to investigate and map worldwide volcanic thermal anomalies in daylight conditions, using shortwave infrared (SWIR) and near infrared (NIR) data from the Multispectral
Giuseppe Mazzeo, Micheal S. Ramsey, Francesco Marchese, Nicola Genzano, Nicola Pergola   +4 more
doaj   +1 more source

Inflation and Asymmetric Collapse at Kīlauea Summit During the 2018 Eruption From Seismic and Infrasound Analyses

Journal of Geophysical Research: Solid Earth, 2021
Characterizing the large M4.7+ seismic events during the 2018 Kīlauea eruption is important to understand the complex subsurface deformation at the Kīlauea summit.
V. Lai, Z. Zhan, Osamu Sandanbata, Q. Brissaud, M. Miller   +4 more
semanticscholar   +1 more source

Measuring SO2 Emission Rates at Kīlauea Volcano, Hawaii, Using an Array of Upward-Looking UV Spectrometers, 2014–2017

Frontiers in Earth Science, 2018
Retrieving accurate volcanic sulfur dioxide (SO2) gas emission rates is important for a variety of purposes. It is an indicator of shallow subsurface magma, and thus may signal impending eruption or unrest.
Tamar Elias, Christoph Kern, Keith A. Horton, Andrew J. Sutton, Harold Garbeil   +4 more
doaj   +1 more source

Mapping lava flow from the Kilauea eruption of 2018 in the east rift zone using space-based synthetic aperture radar

GIScience & Remote Sensing, 2023
Lava flows from volcanoes can significantly destroy infrastructure, although they rarely threaten human life. Mapping lava flows is essential to managing the volcanic hazard during eruptions and understanding significant changes in geomorphology after ...
Je-Yun Lee, Seong-Woo Jung, Sang-Hoon Hong   +2 more
doaj   +1 more source

Tracking magma pathways and surface faulting in the Southwest Rift Zone and the Koa'e fault system (Kīlauea volcano, Hawai 'i) using photogrammetry and structural observations. [PDF]

Bull Volcanol
Mannini S, Ruch J, Hazlett RW, Downs DT, Parcheta CE, Lundblad SP, Anderson JL, Perroy R, Oestreicher N.   +8 more
europepmc   +3 more sources

Relative seismic velocity variations correlate with deformation at Kīlauea volcano. [PDF]

Sci Adv, 2017
Donaldson C, Caudron C, Green RG, Thelen WA, White RS.   +4 more
europepmc   +3 more sources

Ozone Depletion in Tropospheric Volcanic Plumes: From Halogen-Poor to Halogen-Rich Emissions

Geosciences, 2018
Volcanic halogen emissions to the troposphere undergo a rapid plume chemistry that destroys ozone. Quantifying the impact of volcanic halogens on tropospheric ozone is challenging, only a few observations exist.
Tjarda J. Roberts
doaj   +1 more source

Dynamics of the December 2020 Ash‐Poor Plume Formed by Lava‐Water Interaction at the Summit of Kīlauea Volcano, Hawaiʻi

Geochemistry, Geophysics, Geosystems, 2023
On 20 December 2020, after more than 2 years of quiescence at Kīlauea Volcano, Hawaiʻi, renewed volcanic activity in the summit crater caused boiling of the water lake over a period of ∼90 min. The resulting water‐rich, electrified plume rose to 11–13 km
Ryan C. Cahalan, Larry G. Mastin, Alexa R. VanEaton, Shaul Hurwitz, Adam B. Smith, Josef Dufek, Stephen A. Solovitz, Matt Patrick, Johanne Schmith, Carolyn Parcheta, Weston A. Thelen, Drew T. Downs   +11 more
doaj   +1 more source

Magma reservoir failure and the onset of caldera collapse at Kīlauea Volcano in 2018

Science, 2019
Caldera collapse and flank eruption Real-time monitoring of volcanic eruptions involving caldera-forming events are rare (see the Perspective by Sigmundsson). Anderson et al.
K. Anderson, I. Johanson, M. Patrick, Mengyang Gu, P. Segall, M. Poland, E. Montgomery‐Brown, A. Miklius   +7 more
semanticscholar   +1 more source