Results 51 to 60 of about 161 (108)

Detecting the Source Location of Recent Summit Inflation via Three-Dimensional InSAR Observation of Kīlauea Volcano

Remote Sensing, 2015
Starting on 21 April 2015, unusual activity on the summit of Kīlauea was detected. Rapid summit inflation and a rising lava lake in Halema‘uma‘u crater were interpreted as early signs of imminent magma intrusion.
Min-Jeong Jo, Hyung-Sup Jung, Joong-Sun Won   +2 more
doaj   +1 more source

Explosive Ocean Island Volcanism Explained by High Magmatic Water Content Determined Through Nominally Anhydrous Minerals

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 2, February 2025.
Abstract Ocean island basalt (OIB) magmas are generally water poor and usually contain less than 1 wt.% of H2O. Explosive eruption styles are therefore rare. When explosive eruptions occur, they are thought to be driven by either volatile‐enriched mantle sources or by gas segregation processes during magma differentiation.
Harri Geiger, Franz Weis, Valentin R. Troll, Frances M. Deegan, Henrik Skogby, Juan Carlos Carracedo   +5 more
wiley   +1 more source

Dynamics of the 2021 Fagradalsfjall Eruption (Iceland) Revealed by Volcanic Tremor Patterns

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 2, February 2025.
Abstract Co‐eruptive volcanic tremor during the 2021 Fagradalsfjall eruption in Iceland (19 March–18 September 2021) is characterized using seismic and visual data recorded close to the eruption site and across the Reykjanes Peninsula. An automatic seismic network‐based approach reveals several tremor patterns associated with seven phases of the ...
Jean Soubestre, Corentin Caudron, Oleg Melnik, Thomas Lecocq, Claude Jaupart, Nikolai M. Shapiro, Cyril Journeau, Yeşim Çubuk‐Sabuncu, Kristín Jónsdóttir   +8 more
wiley   +1 more source

Widespread Occurrence of Lava Lakes on Io Observed From Juno

Journal of Geophysical Research: Planets, Volume 130, Issue 2, February 2025.
Abstract We report recent observations of lava lakes within patera on Io made by the JIRAM (Jovian InfraRed Auroral Mapper) imager on board the Juno spacecraft, taken during close observations that occurred during the extended mission. At least 40 lava lakes have been identified from JIRAM observations.
Alessandro Mura, Federico Tosi, Francesca Zambon, Rosaly M. C. Lopes, Peter J. Mouginis‐Mark, Jani Radebaugh, Alberto Adriani, Scott Bolton, Julie Rathbun, Andrea Cicchetti, Davide Grassi, Raffaella Noschese, Giuseppe Piccioni, Christina Plainaki, Roberto Sordini, Giuseppe Sindoni   +15 more
wiley   +1 more source

Monitoring lava lake fluctuations and crater refilling with continuous laser rangefinders

Journal of Applied Volcanology
The U.S. Geological Survey’s Hawaiian Volcano Observatory (HVO) has developed a new method to continuously monitor lava lake elevations. Since 2018, HVO has stationed a laser rangefinder on Kīlauea’s caldera rim.
E. F. Younger, W. Tollett, M. R. Patrick
doaj   +1 more source

Space-Based Imaging Radar Studies of U.S. Volcanoes

Frontiers in Earth Science, 2019
The arrival of space-based imaging radar as a revolutionary land-surface mapping and monitoring tool little more than a quarter century ago enabled a spate of innovative volcano research worldwide.
Daniel Dzurisin, Zhong Lu, Michael P. Poland, Charles W. Wicks   +3 more
doaj   +1 more source

Hydroacoustic Evidence for Offshore Lava Emplacement During the 2018 Kīlauea Eruption

Geophysical Research Letters
During the 2018 Kīlauea eruption, over half the erupted lava was deposited on the seafloor. Lava flows crossing the shoreline generated sounds that were recorded by a network of hydrophones.
C. Atkins, O. Costa, J. Caplan‐Auerbach   +2 more
doaj   +1 more source

USGS and social media user dialogue and sentiment during the 2018 eruption of Kīlauea Volcano, Hawai‘i

Frontiers in Communication
Responsive and empathic communication by scientists is critical for building trust and engagement with communities, which, in turn, promotes receptiveness toward authoritative hazard information during times of crisis.
Robert T. Goldman, Sara K. McBride, Wendy K. Stovall, David E. Damby   +3 more
doaj   +1 more source

Cultivation and complete genome sequencing of Gloeobacter kilaueensis sp. nov., from a lava cave in Kīlauea Caldera, Hawai'i.

PLoS ONE, 2013
The ancestor of Gloeobacter violaceus PCC 7421(T) is believed to have diverged from that of all known cyanobacteria before the evolution of thylakoid membranes and plant plastids. The long and largely independent evolutionary history of G.
Jimmy H W Saw, Michael Schatz, Mark V Brown, Dennis D Kunkel, Jamie S Foster, Harry Shick, Stephanie Christensen, Shaobin Hou, Xuehua Wan, Stuart P Donachie   +9 more
doaj   +1 more source

Lava flow hazard prediction and monitoring with UAS: a case study from the 2014–2015 Pāhoa lava flow crisis, Hawai‘i

Journal of Applied Volcanology, 2017
Accurately predicting lava flow path behavior is critical for active crisis management operations. The advance and emplacement of pāhoehoe flows modifies and inverts pre-existing topography, prompting the need for rapid and accurate updates to the ...
Nicolas R. Turner, Ryan L. Perroy, Ken Hon   +2 more
doaj   +1 more source