Results 31 to 40 of about 257,872 (307)

Waveform inversion of the ultra-long-period seismic event associated with ground tilt motion during an eruption of Mount Kusatsu–Shirane, Japan, on January 23, 2018

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, Yuta Maeda, Toshiki Watanabe   +2 more
doaj   +1 more source

Multidisciplinary Constraints on Magma Compressibility, the Pre‐Eruptive Exsolved Volatile Fraction, and the H2O/CO2 Molar Ratio for the 2006 Augustine Eruption, Alaska

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, Taryn M. Lopez, Kyle R. Anderson, Pavel E. Izbekov, Jeffrey T. Freymueller   +4 more
doaj   +1 more source

Distorting the volcano

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.
Mireille Fouquet, Josep M. Miret, Javier Valera   +2 more
openaire   +2 more sources

Debris-flow monitoring on volcanoes via a novel usage of a laser rangefinder

Journal of Applied Volcanology
Mount Rainier has had at least 11 large lahars over the last 6,000 years, including one occurring without evidence of eruptive activity. This prompted the creation of a lahar detection system that uses a combination of seismic, infrasound, and tripwires.
Alexandra M. Iezzi, Emily Bryant, Weston A. Thelen, Craig Gabrielson, Seth C. Moran, Matthew R. Patrick, E. Frank Younger, Maciej K. Obryk   +7 more
doaj   +1 more source

Probabilistic Source Classification of Large Tephra Producing Eruptions Using Supervised Machine Learning: An Example From the Alaska‐Aleutian Arc

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, Matthew Loewen, Kristi Wallace, Michelle Coombs, Jason Addison   +4 more
doaj   +1 more source

Effect of DFPP on Ferroptosis in Peripheral Blood CD14+ Monocytes of Hyperlipidemic Patients Involving the ACSL4/LPCAT3/ALOX5 Pathway

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Hyperlipidemia is a major risk factor for atherosclerotic cardiovascular disease (ASCVD). Although statins are the cornerstone of lipid‐lowering therapy, their use may be limited in some patients by adverse effects. This study evaluated the possible impact of non‐drug treatment using double‐filtration plasmapheresis (DFPP) on CD14+
Yun Cheng, Lan Li, Qingmei Yang, Meipeng Wu   +3 more
wiley   +1 more source

pklemmer/Generating volcano plots from expression data

, 2022
This repository contains an R script for (GEO2R rotenone) dataset volcano plot generation in addition to GEO 2 R rotenone exposure expression datasets (tsv) as well as the corresponding volcano plots (svg)
Pierre Klemmer
core   +1 more source

Seeing is believing: livestream video monitoring of Hawaiian eruptions

Journal of Applied Volcanology
Livestream video has become a crucial tool for volcano monitoring in recent years, building upon the use of webcam snapshots that have been common for the past two decades. In Hawaii, livestream video was first tested in 2018, and today, livestream video
M.R. Patrick, K. Hon, W. Tollett, T-J. Hoomanawanui, K. Mulliken, T.R. Orr, M.P. Poland, K. Kamibayashi, S.M. Warren, S. Swaney, E.F. Younger, A. Kamakeʻeaina, S. Fuke, R.C. Lee, M. Zoeller, S. Horvath   +15 more
doaj   +1 more source

Monitoring eruption activity using temporal stress changes at Mount Ontake volcano

Nature Communications, 2016
Volcanic activity is often accompanied by small earthquakes, with focal mechanisms indicating stress state beneath volcanoes. Here, the authors demonstrate that quantitative evaluation of temporal stress changes is an effective tool for eruption ...
Toshiko Terakawa, Aitaro Kato, Yoshiko Yamanaka, Yuta Maeda, Shinichiro Horikawa, Kenjiro Matsuhiro, Takashi Okuda   +6 more
doaj   +1 more source

Visions of Volcanoes

19: Interdisciplinary Studies in the Long Nineteenth Century, 2017
The long nineteenth century marked an important transition in the understanding of the nature of combustion and fire, and of volcanoes and the interior of the earth. It was also a period when dramatic eruptions of Vesuvius lit up the night skies of Naples, providing ample opportunities for travellers, natural philosophers, and early geologists to get ...
openaire   +3 more sources