Unsteady high-pressure flow experiments with applications to explosive volcanic eruptions [PDF]
, 2010 Motivated by the hypothesis that volcanic blasts can have supersonic regions, we investigate the role of unsteady flow in jets from a high-pressure finite reservoir.
Austin, J. M. +2 more
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Earth, Planets and Space, 2023 Vulcanian activity is one of the most common eruption styles of arc andesitic volcanism on Earth. It ejects and deposits volcanic bombs around the source crater.
Takeshi Hasegawa +9 more
doaj +1 more source
Ballistic ejecta and eruption condition of the vulcanian explosion of Shinmoedake volcano, Kyushu, Japan on 1 February, 2011 [PDF]
Earth, Planets and Space, 2013 The physical condition of the 1 February, 2011, vulcanian explosion at Shinmoedake volcano, Japan, is estimated based on the size of impact craters created by ballistic ejecta, using a ballistic trajectory model and a scaling law for impact crater formation.
Fukashi Maeno +3 more
openalex +3 more sources
Volcanic SO2 and SiF4 visualization using 2-D thermal emission spectroscopy – Part 1: Slant-columns and their ratios [PDF]
Atmospheric Measurement Techniques, 2012 The composition and emission rates of volcanic gas plumes provide insight of the geologic internal activity, atmospheric chemistry, aerosol formation and radiative processes around it.
M. Grutter +3 more
doaj +1 more source
Frontiers in Earth Science, 2022 Arequipa, Peru’s second economic center hosting c. 1,110,000 inhabitants, is the largest South American city exposed to a large variety of natural hazards.
J.-C. Thouret +7 more
doaj +1 more source
High level sill and dyke intrusions initiated from rapidly buried mafic lava flows in scoria cones of Tongoa, Vanuatu (New Hebrides), South Pacific [PDF]
, 2006 Scoria cones are generally considered to grow rapidly in days to weeks or months. During their growth lava flows may be fed onto the cone surface from lava-lake breaches, or form by coalescence of spatter; such flows are preserved interbedded with scoria
Nemeth, Karoly, White, James D. L.
core +2 more sources
Mapping the susceptibility of rain-triggered lahars at Vulcano island (Italy) combining field characterization, geotechnical analysis, and numerical modelling [PDF]
Natural Hazards and Earth System Sciences, 2019 The characterization of triggering dynamics and remobilized volumes is crucial to the assessment of associated lahar hazards. We propose an innovative treatment of the cascading effect between tephra fallout and lahar hazards based on probabilistic ...
V. Baumann +6 more
doaj +1 more source
Characterization of moderate ash-and-gas explosions at Santiaguito volcano, Guatemala, from infrasound waveform inversion and thermal infrared measurements [PDF]
, 2016 The rapid discharge of gas and rock fragments during volcanic eruptions generates acoustic infrasound. Here we present results from the inversion of infrasound signals associated with small and moderate gas‐and‐ash explosions at Santiaguito volcano ...
A. J. Hornby +33 more
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Identification of structural controls in an active lava dome with high resolution DEMs:Volcán de Colima, Mexico [PDF]
, 2012 Monitoring the topography of active lava domes is critical for detecting changes that may trigger or influence collapse or explosive activity. Internal dome structure and conditions are more difficult to elucidate, but also play vital roles.
James, Michael, Varley, Nick
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The ash-fall hazard from a Plinian eruption at Colima Volcano, Mexico
Annals of Geophysics, 2010 The historical eruptive activity at Colima Volcano has been characterized by Strombolian and Merapi type eruptions and Vulcanian explosions associated with dome growth, which have ended in a Plinian eruption about every 100 years.
Rita Fonseca
doaj +1 more source