Results 41 to 50 of about 2,076 (205)

Magma decompression rates during explosive eruptions of Kīlauea volcano, Hawai'i, recorded by melt embayments [PDF]

open access: yes, 2016
The decompression rate of magma as it ascends during volcanic eruptions is an important but poorly constrained parameter that controls many of the processes that influence eruptive behaviour.
Ferguson, DJ   +6 more
core   +1 more source

Derivation of high-quality three-dimensional surface deformation velocities through multi-source point cloud fusion: Application to Kīlauea volcano

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2021
Kīlauea volcano, located in the southeast of Hawai’i, is one of the most active volcanoes in the world. Multi-source InSAR measurements acquired from ascending and descending high-resolution COSMO-SkyMed SAR imagery are used to monitor Kīlauea volcano’s ...
Wenqing Wu   +7 more
doaj  

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

open access: yesFrontiers 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   +4 more
doaj   +1 more source

Lava fountain jet noise during the 2018 eruption of fissure 8 of Kīlauea volcano

open access: yesFrontiers in Earth Science, 2022
Real-time monitoring is crucial to assess hazards and mitigate risks of sustained volcanic eruptions that last hours to months or more. Sustained eruptions have been shown to produce a low frequency (infrasonic) form of jet noise.
Julia E. Gestrich   +8 more
doaj   +1 more source

AN INVESTIGATION OF MICROSEISMICITY DURING THE 2018 KILAUEA CALDERA COLLAPSE [PDF]

open access: yes, 2023
The 2018 Kīlauea volcano eruption and incremental caldera collapse was accompanied by more than 60,000 seismic events cataloged by the Hawaiian Volcano Observatory as well as 62 caldera collapse events that occurred roughly once per day.
Metts, Isabella S.
core   +1 more source

Stronger or longer: Discriminating between Hawaiian and Strombolian eruption styles [PDF]

open access: yes, 2016
The weakest explosive volcanic eruptions globally, Strombolian explosions and Hawaiian fountaining, are also the most common. Yet, despite over a hundred years of observations, no classifications have offered a convincing, quantitative way of demarcating
Andronico, D   +11 more
core   +3 more sources

Volatile metal degassing from volcanoes: source processes, atmospheric transport and deposition [PDF]

open access: yes, 2022
Volcanoes emit metal and metalloid elements in the gas phase at rates that are comparable to industrial emissions of entire countries or regions. These elements (e.g., Cu, Zn, Pb, As, Se), collectively referred to as ‘metal pollutants’ or ‘heavy metals’,
Mason, Emily
core   +1 more source

Volcano Monitoring With Magnetic Measurements: A Simulation of Eruptions at Axial Seamount, Kīlauea, Bárðarbunga, and Mount Saint Helens

open access: yesGeophysical Research Letters, 2022
Monitoring of active volcanic systems is a challenging task due in part to the trade‐offs between collection of high‐quality data from multiple techniques and the high costs of acquiring such data.
Joseph Biasi   +2 more
doaj   +1 more source

Explosive activity of the summit cone of Piton de la Fournaise volcano (La Réunion island): A historical and geological review [PDF]

open access: yes, 2013
International audienceSummit explosive activity and collapses that form pit craters and calderas represent major volcanic hazards on a dominantly effusive, frequently active volcano like Piton de la Fournaise.
Di Muro, Andrea   +5 more
core   +2 more sources

Spatial and Temporal Variations in SO2 and PM2.5 Levels Around Kīlauea Volcano, Hawai'i During 2007–2018

open access: yesFrontiers in Earth Science, 2020
Among the hazards posed by volcanoes are the emissions of gases and particles that can affect air quality and damage agriculture and infrastructure. A recent intense episode of volcanic degassing associated with severe impacts on air quality accompanied ...
Rachel C. W. Whitty   +17 more
doaj   +1 more source

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