Results 21 to 30 of about 985 (249)

Characteristics of Active Volcanoes in Sumatra, Indonesia: From Perspective Seismicity, Magma Chemical Composition and Eruption History [PDF]

open access: yesE3S Web of Conferences, 2023
The characteristics of active volcanoes in Sumatra have been summarized based on the analysis of the relationship between seismicity, morphology, magma chemical composition, and eruption history.
Sugianto Nanang   +2 more
doaj   +1 more source

Seismicity of La Réunion island

open access: yesComptes Rendus. Géoscience, 2021
The island of La Réunion is made up of two main shield volcanoes: Piton des Neiges and Piton de la Fournaise. A wide variety of seismic events is observed, including but not limited to: tectonic events, volcano-tectonic earthquakes, volcanic tremors ...
Duputel, Zacharie   +5 more
doaj   +1 more source

Estimation of Klyuchevskoy Volcano Activity in 2023 based on the SESL’09 technique [PDF]

open access: yesE3S Web of Conferences
In October 2023, Klyuchevskoy volcano (Kamchatka, Russia) erupted, when the height of the ash column reached ~15 km. The eruption was preceded by seismic activity.
Saltykov V. A., Shakirova A. A.
doaj   +1 more source

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

open access: yesAnnals 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   +9 more
doaj   +1 more source

Time Variation in the Chemical and Isotopic Composition of Fumarolic Gasses at Kusatsu-Shirane Volcano, Japan

open access: yesFrontiers in Earth Science, 2019
Minor seismicity may occur at volcanoes with hydrothermal system before a steam eruption. To forecast any steam eruption, it is indispensable to detect and understand the nature of this shallow seismicity. As the fumarolic gas resides in the hydrothermal
Takeshi Ohba   +6 more
doaj   +1 more source

A generalized deep learning model to detect and classify volcano seismicity

open access: yesVolcanica
Volcano seismicity is often detected and classified based on its spectral properties. However, the wide variety of volcano seismic signals and increasing amounts of data make accurate, consistent, and efficient detection and classification challenging ...
David Fee   +10 more
doaj   +1 more source

Magmatic Triggering of Earthquakes on Distal Faults as a Potential Medium‐Term Warning Signal From Ruapehu Volcano

open access: yesGeophysical Research Letters, 2018
A major eruption sequence of Ruapehu volcano began on 17 September 1995, with only hours of local precursory seismicity. However, from about 10 to 5 months prior to the eruption, an unusually high number of tectonic earthquakes occurred between 15 and 20 
Tony Hurst, Geoff Kilgour, Ian Hamling
doaj   +1 more source

Machine learning for automatic classification of volcano-seismic signatures [PDF]

open access: yes2017 25th European Signal Processing Conference (EUSIPCO), 2017
Publication in the conference proceedings of EUSIPCO, Kos island, Greece ...
Malfante, Marielle   +3 more
openaire   +3 more sources

Low‐Frequency Seismicity at Villarrica Volcano: Source Location and Seismic Velocities [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2019
AbstractVillarrica Volcano (Chile) is one of the most active volcanoes in South America. Its low‐frequency (≤5 Hz) seismicity consists of a continuous tremor, overlain by impulsive transient events of higher amplitude in 60‐s intervals. This signal was recorded in March 2012 by an extensive local network, comprising 75 stations and including 6 ...
Johanna Lehr   +3 more
openaire   +3 more sources

Caldera resurgence during the 2018 eruption of Sierra Negra volcano, Galápagos Islands

open access: yesNature Communications, 2021
The authors here present geodetic and seismic data for a complete eruptive cycle (2005-2018) for Sierra Negra volcano, Galapagos Island. The data shows the largest pre-eruptive inflation (6.5 m) and rates of seismicity ever observed before a basaltic ...
Andrew F. Bell   +18 more
doaj   +1 more source

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