Results 31 to 40 of about 256,624 (343)
Atmosphere, 2021 Vulcanian eruptions (short-lived explosions consisting of a rising thermal) occur daily in volcanoes around the world. Such small-scale eruptions represent a challenge in numerical modeling due to local-scale effects, such as the volcano’s topography ...
Kosei Takishita +2 more
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Volcanic Thunder From Explosive Eruptions at Bogoslof Volcano, Alaska
Geophysical Research Letters, 2018 Lightning often occurs during ash‐producing eruptive activity, and its detection is now being used in volcano monitoring for rapid alerts. We report on infrasonic and sonic recordings of the related, but previously undocumented, phenomenon of volcanic ...
Matthew M. Haney +5 more
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Uncertainty in Detection of Volcanic Activity Using Infrasound Arrays: Examples From Mt. Etna, Italy
Frontiers in Earth Science, 2020 The injection of gas and pyroclastic material from volcanic vents into the atmosphere is a prolific source of acoustic waves. Infrasound arrays offer efficient, cost-effective, and near real-time solutions to track the rate and intensity of surface ...
Silvio De Angelis +7 more
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Earth, Planets and Space, 2022 We conducted waveform inversions of an ultra-long-period (~ 240-s) event associated with the phreatic eruption of Mount Kusatsu–Shirane on January 23, 2018. We used broadband seismic and tilt records from three stations surrounding the eruption site. The
Ryohei Takahashi +2 more
doaj +1 more source
Finite Fields and Their Applications, 2018 Volcanoes of ℓ–isogenies of elliptic curves are a special case of graphs with a cycle called crater. In this paper, given an elliptic curve E of a volcano of ℓ–isogenies, we present a condition over an endomorphism ϕ of E in order to determine which ℓ–isogenies of E are non-descending.
Fouquet, Mireille +2 more
openaire +3 more sources
Geophysical Research Letters, 2019 We investigate the 24–27 December 2018 eruption of Mount Etna occurred from fissures located on the volcano eastern flank and accompanied by a seismic swarm, which was triggered by the magma intrusion and continued for weeks after the end of the eruption.
V. De Novellis +17 more
semanticscholar +1 more source
Geochemistry, Geophysics, Geosystems, 2023 Alaska contains over 130 volcanoes and volcanic fields that have been active within the last 2 million years. Of these, roughly 90 have erupted during the Holocene, with many characterized by at least one large explosive eruption.
Jordan Lubbers +4 more
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Journal of Applied Volcanology, 2018 Global Synthetic Aperture Radar (SAR) measurements made over the past decades provide insights into the lateral extent of magmatic domains, and capture volcanic process on scales useful for volcano monitoring.
S. Ebmeier +15 more
semanticscholar +1 more source
First muography of Stromboli volcano
Scientific Reports, 2019 Muography consists in observing the differential absorption of muons – elementary particles produced through cosmic-ray interactions in the Earth atmosphere – going through the volcano and can attain a spatial resolution of tens of meters.
V. Tioukov +17 more
semanticscholar +1 more source
Geochemistry, Geophysics, Geosystems, 2021 Geodetically modeled reservoir volume changes during volcanic eruptions are commonly much smaller than the observed eruptive volumes. This discrepancy is thought to be partially due to the compressibility of magma, which is largely controlled by the ...
Valerie K. Wasser +4 more
doaj +1 more source