Results 31 to 40 of about 7,688 (251)

Volcanic earthquake catalog enhancement using integrated detection, matched-filtering, and relocation tools

open access: yesFrontiers in Earth Science, 2023
Volcanic earthquake catalogs are an essential data product used to interpret subsurface volcanic activity and forecast eruptions. Advances in detection techniques (e.g., matched-filtering, machine learning) and relative relocation tools have improved ...
Darren Tan   +6 more
doaj   +1 more source

A preliminary survey of the broadband seismic wavefield at Puu Oo, the active vent of Kilauea volcano, Hawaii

open access: yesAnnals of Geophysics, 1996
The seismic wavefield near an active volcanic vent consists of superimposed signals in a wide range of frequency bands from sources inside and outside the volcano.
P. Okubo   +3 more
doaj   +1 more source

Listening carefully: unique observations of harmonic tremor at Lascar volcano, Chile

open access: yesAnnals of Geophysics, 1999
During the deployment of Proyecto de Investigación Sismológica de la Cordillera Occidental 94 (PISCO'94) in the Atacama Desert of Northern Chile, a broadband seismic station and a network of three short-period three-component stations were installed ...
M. Hellweg
doaj   +1 more source

The 3D Attenuation Structure of Deception Island (Antarctica) [PDF]

open access: yes, 2016
Peer ...
De Siena, Luca   +5 more
core   +1 more source

Expeditional exploration of the Kuril Islands in 2020

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2020
This report provides a brief description of the field work on the Kuril Islands. It was performed within the framework of the R&D theme, projects of the RSF and the RFFR, which are realized in the laboratory of postmagmatic processes of the Institute of ...
Калачева Е.Г.
doaj   +1 more source

Single-Station Seismo-Acoustic Monitoring of Nyiragongo's Lava Lake Activity (D.R. Congo)

open access: yesFrontiers in Earth Science, 2018
Since its last effusive eruption in 2002, Nyiragongo has been an open-vent volcano characterized by the world's largest persistent lava lake. This lava lake provides a unique opportunity to detect pressure change in the magmatic system by analyzing its ...
Julien Barrière   +9 more
doaj   +1 more source

Volcanic and Tectonic Sources of Seismicity Near the Tanaga Volcanic Cluster, Alaska

open access: yesGeochemistry, Geophysics, Geosystems, 2023
Tanaga Island in the Central Aleutian Islands includes four stratovolcanoes: Sajaka, Tanaga, and East Tanaga in the northwest, and Takawangha in the central part of the island. Of these volcanoes, only Tanaga has a confirmed record of historical eruptive
Kevin F. Lally   +2 more
doaj   +1 more source

An analytical model for gas overpressure in slug-driven explosions:insights into Strombolian volcanic eruptions [PDF]

open access: yes, 2012
Strombolian eruptions, common at basaltic volcanoes, are mildly explosive events that are driven by a large bubble of magmatic gas (a slug) rising up the conduit and bursting at the surface.
Del Bello, Elisabetta   +4 more
core   +1 more source

Back‐Projection Imaging of Extended, Diffuse Sources of Volcano‐Tectonic Seismicity During June 2010 at Sierra Negra Volcano, Galápagos

open access: yesGeochemistry, Geophysics, Geosystems, 2018
Seismic signals generated by subsurface volcano‐tectonic processes commonly have low signal‐to‐noise ratios that make it difficult to resolve both 3‐D subsurface structures and seismic source locations using established seismic imaging methods (e.g ...
C. L. Kelly, J. F. Lawrence
doaj   +1 more source

Foundations for Forecasting: Defining Baseline Seismicity at Fuego Volcano, Guatemala

open access: yesFrontiers in Earth Science, 2018
Accurate volcanic eruption forecasting is especially challenging at open vent volcanoes with persistent low levels of activity and relatively sparse permanent monitoring networks.
Kyle A. Brill   +2 more
doaj   +1 more source

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