Results 31 to 40 of about 331 (165)

Temporal change in eruption style during the basaltic explosive An’ei eruption of the Izu-Oshima volcano, Japan: insights from stratigraphy and chemical composition analyses

Frontiers in Earth Science, 2023
Basaltic eruptions sometimes show an explosive and complex nature; thus, clarifying the sequence and controlling parameters is essential for understanding their causes.
Yuya Ikenaga, Fukashi Maeno, Atsushi Yasuda   +2 more
doaj   +1 more source

Submarine strombolian eruptions on the Gorda mid-ocean ridge

, 2003
Compositionally variable limu o Pele occurs in widely distributed sediments collected during ROV Tiburon dives along the Gorda Ridge axis. The fragments formed deeper than the critical depth of seawater and are unlikely to be formed by supercritical expansion of seawater upon heating in contact with hot lava. Discharge of CO 2 through erupting lava is
Clague, David A., Davis, Alicé S., Dixon, Jacqueline E.   +2 more
openaire   +3 more sources

Integrating field, textural, and geochemical monitoring to track eruption triggers and dynamics: a case study from Piton de la Fournaise [PDF]

Solid Earth, 2018
The 2014 eruption at Piton de la Fournaise (PdF), La Réunion, which occurred after 41 months of quiescence, began with surprisingly little precursory activity and was one of the smallest so far observed at PdF in terms of duration (less than 2 days ...
L. Gurioli, A. Di Muro, I. Vlastélic, S. Moune, S. Thivet, M. Valer, N. Villeneuve, N. Villeneuve, G. Boudoire, G. Boudoire, A. Peltier, P. Bachèlery, V. Ferrazzini, N. Métrich, M. Benbakkar, N. Cluzel, C. Constantin, J.-L. Devidal, C. Fonquernie, J.-M. Hénot   +19 more
doaj   +1 more source

Genesis and interaction of magmas at Nishinoshima volcano in the Ogasawara arc, western Pacific: new insights from submarine deposits of the 2020 explosive eruptions

Frontiers in Earth Science, 2023
Sudden changes of eruption styles and magma compositions at arc volcanoes are enigmatic processes. Nishinoshima volcano, western Pacific, has had historical eruptions in 1973–1974 and from 2013 on and off to the present day.
Yoshihiko Tamura, Tomoki Sato, Osamu Ishizuka, Iona M. McIntosh, Kenta Yoshida, Fukashi Maeno, Qing Chang   +6 more
doaj   +1 more source

Anatomy of a Strombolian eruption: Inferences from particle data recorded with thermal video [PDF]

Journal of Geophysical Research: Solid Earth, 2015
AbstractOver the past decade, a proliferation of new technologies has pushed forward our ability to measure the dynamics of volcanic emissions as they exit, and ascend above, the vent. Measuring parameters of all particles as they exit the vent during an explosive eruption is the best way to gather parameters such as size, shape, velocity, and mass for
Bombrun, Maxime, Harris, Andrew, Gurioli, Lucia, Battaglia, Jean, Barra, Vincent   +4 more
openaire   +3 more sources

Landslide Character and Hydrological Thresholds for Slope Failure Initiation on Volcanic Scoria Slopes: Case Study From Mt Hobson/Ōhinerau, Auckland, New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
Rainfall‐induced landslides involving on Auckland Volcanic Field scoria cones are highly unusual, compared with widespread landsliding in the surrounding Auckland clay‐rich residual soils. Indeed, while Auckland can suffer from thousands of rainfall‐induced shallow landslides from severe storms at subdecadal timescales, these are usually limited to ...
Beatrice Bertelli, Martin Brook
wiley   +1 more source

Seismological monitoring of the February 2007 effusive eruption of the Stromboli volcano

Annals of Geophysics, 2007
On February 27, 2007, the Stromboli volcano, which has usually been characterized by moderate explosive activity, started an effusive eruption with a small lava flow down the NW flank.
G. Scarpato, M. Orazi, W. De Cesare, R. Curciotti, T. Caputo, A. M. Esposito, L. D’Auria, F. Giudicepietro, M. Martini, A. Caputo   +9 more
doaj   +1 more source

Syn-Eruptive Conditions of the AD 1530 Sub-Plinian Eruption of La Soufrière of Guadeloupe (Lesser Antilles)

Frontiers in Earth Science, 2021
A prerequisite in refining volcanic hazard at explosive volcanoes is a better quantification of the timescales of the syn-eruptive processes, such as magma degassing and crystallization prior to eruption. To this aim, new data on the matrices (microlites,
Caroline Martel, Michel Pichavant, Hélène Balcone-Boissard, Georges Boudon   +3 more
doaj   +1 more source

Imaging of Erebus volcano using body wave seismic interferometry of Strombolian eruption coda [PDF]

Geophysical Research Letters, 2012
Seismic interferometry is a recently developed theory that allows for the recovery of a medium's impulse response between two points should randomly distributed sources of white noise, or equivalently, a multiply scattered equipartioned wavefield, be present throughout the medium. We exploit the extremely scattering nature of volcanic media and seismic
J. A. Chaput, D. Zandomeneghi, R. C. Aster, H. Knox, P. R. Kyle   +4 more
openaire   +1 more source

Seismoacoustic Analysis of Possible Vent‐Drying Sequence During Phreatomagmatic Activity on 13 July 2021 at Semisopochnoi Island, Alaska

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Pulse‐like infrasound accompanying volcanic phenomena sometimes suggests interaction with water at the crater. We focus on pulse‐like infrasound observed at Semisopochnoi Island in the Aleutian Arc, Alaska, during the phreatomagmatic activity on 13 July 2021.
Dan Muramatsu, John J. Lyons, Hannah R. Dietterich, Mie Ichihara, Alexandra M. Iezzi   +4 more
wiley   +1 more source