Results 81 to 90 of about 2,078 (215)

Similarities and differences in the historical records of lava dome-building volcanoes: implications for understanding magmatic processes and eruption forecasting [PDF]

open access: yes, 2016
A key question for volcanic hazard assessment is the extent to which information can be exchanged between volcanoes. This question is particularly pertinent to hazard forecasting for dome-building volcanoes, where effusive activity may persist for years ...
Almeev   +315 more
core   +3 more sources

Satellite Geodesy Uncovers 15 m of Slip on a Detachment Fault Prior to the 2018 Collapse at Anak Krakatau, Indonesia

open access: yesGeophysical Research Letters, Volume 51, Issue 22, 28 November 2024.
Abstract On 22 December 2018, parts of the Anak Krakatau edifice collapsed, triggering a deadly tsunami. To investigate pre‐collapse surface displacements, we analyzed Interferometric Synthetic Aperture Radar satellite geodetic data from 2006 to 2018, acquired from ALOS‐1 (2006–2011), COSMO‐SkyMED (2012–2018), and Sentinel‐1 (2014–2018).
Young Cheol Kim   +2 more
wiley   +1 more source

Pre-explosive conduit conditions of the 1997 Vulcanian explosions at Soufrière Hills Volcano, Montserrat: I. Pressure and vesicularity distributions [PDF]

open access: yes, 2010
International audienceAn authoritative case of Vulcanian eruptive dynamics is the series of 88 explosions that occurred between August and October 1997 at Soufrière Hills volcano on Montserrat Island.
Arbaret, Laurent   +4 more
core   +2 more sources

Rapid Gas Bubble Growth in Basaltic Magma as a Source of Deep Long Period Volcanic Earthquakes

open access: yesJournal of Geophysical Research: Solid Earth, Volume 129, Issue 11, November 2024.
Abstract In this paper, we present numerical modeling aimed to explain Deep Long Period (DLP) events occurring in middle‐to‐lower crust beneath volcanoes and often observed in association with volcanic eruptions or their precursors. We consider a DLP generating mechanism caused by the rapid growth of gas bubbles in response to the slow decompression of
Oleg Melnik   +2 more
wiley   +1 more source

Sensitivity of OMI SO2 measurements to variable eruptive behaviour at Soufrière Hills Volcano, Montserrat [PDF]

open access: yes, 2016
Since 2004, the satellite-borne Ozone Mapping Instrument (OMI) has observed sulphur dioxide (SO$_{2}$) plumes during both quiescence and effusive eruptive activity at Soufrière Hills Volcano, Montserrat.
Christopher, T   +3 more
core  

An Endogenic Origin for Titan's Rampart Craters: Assessment of Explosion Mechanisms

open access: yesJournal of Geophysical Research: Planets, Volume 129, Issue 10, October 2024.
Abstract Rampart craters are a class of lakes or depressions in Titan's north polar region that have morphological attributes suggestive of an explosive origin. Two previous studies have proposed that rampart craters form via nitrogen or methane vapor explosions analogous to terrestrial maar explosions.
G. E. Brouwer   +2 more
wiley   +1 more source

Bubble nucleation, growth and coalescence during the 1997 Vulcanian explosions of Soufrière Hills Volcano, Montserrat [PDF]

open access: yes, 2010
International audienceSoufrière Hills Volcano had two periods of repetitive Vulcanian activity in 1997. Each explosion discharged the contents of the upper 0.5–2 km of the conduit as pyroclastic flows and fallout: frothy pumices from a deep, gas-rich ...
Arbaret, Laurent   +4 more
core   +2 more sources

Temporal changes of acoustic and seismic wave radiations: Preliminary results of application on Vulcanian eruptions at Sakurajima Volcano, Japan [PDF]

open access: bronze, 2022
Mohammad Hasib   +7 more
openalex   +1 more source

Two‐phase magma flow with phase exchange: Part II. 1.5D numerical simulations of a volcanic conduit

open access: yesStudies in Applied Mathematics, Volume 153, Issue 3, October 2024.
Abstract In a review paper in this same volume, we present the state of the art on modeling of compressible viscous flows ranging from single‐phase to two‐phase systems. It focuses on mathematical properties related to weak stability because they are important for numerical resolution and on the homogenization process that leads from a microscopic ...
Alain Burgisser   +3 more
wiley   +1 more source

Introduction to an Open Community Infrasound Dataset from the Actively Erupting Sakurajima Volcano, Japan [PDF]

open access: yes, 2014
Active volcanoes are significant sources of seismic and acoustic radiation. Extensive work has shown that infrasound is an effective tool to study and monitor active volcanoes.
Fee, David   +2 more
core   +2 more sources

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