Results 21 to 30 of about 304 (164)
Phreatic eruption dynamics derived from deposit analysis: a case study from a small, phreatic eruption from Whakāri/White Island, New Zealand [PDF]
Earth, Planets and Space, 2019 Abstract On 27 April 2016, White Island erupted in a multi-pulse, phreatic event that lasted for ~ 40 min. Six, variably sized pulses generated three ballistic ejections and at least one pyroclastic surge out of the inner crater and onto the main crater floor.
Geoff Kilgour +5 more
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Reappraisal of volcanic seismicity at the Kirishima volcano using machine learning
Earth, Planets and Space, 2023 Volcanic earthquakes provide essential information for evaluating volcanic activity. Because volcanic earthquakes are often characterized by swarm-like features, conventional methods using manual picking require considerable time to construct seismic ...
Yohei Yukutake, Ahyi Kim, Takao Ohminato
doaj +1 more source
Geosciences, 2020 Atka is a subduction-related volcanic island located in the central part of Aleutian Arc. The northeastern part of this island forms the Atka Volcanic Complex (AVC), which is built as a relict shield volcano of a circular shape overlain by several active
Ivan Koulakov +2 more
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Earth, Planets and Space, 2021 This study presents the first hydrogeochemical model of the hydrothermal systems of Turrialba and Irazú volcanoes in central Costa Rica, manifested as thermal springs, summit crater lakes, and fumarolic degassing at both volcanoes.
D. Rouwet +9 more
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Analysis of the intermittent volcanic tremor observed at Mt. Etna, Sicily during March-May 1987
Annals of Geophysics, 1996 Volcanic activity at the summit craters of Mt. Etna includes phreatic eruptions which jeopardize tourists and other people who sporadically approach the top of the volcano. To date no appreciable precursors of this kind of activity are known.
A. Leotta +3 more
doaj +1 more source
MOESM1 of Anatomy of phreatic eruptions
, 2019 Additional file 1. Spectrograms of harmonic tremor at White Island. Harmonic tremor recorded at White Island after a seismic quiescence of 20 min, and lasting for 8 h. a station WIZ b stations WSRZ. We used a window of 20 s without any overlap to create the spectrograms.
Caudron, Corentin +8 more
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Modeling the priming mechanisms of phreatic eruptions: challenges and possible solutions
, 2023 To the present date, no phreatic eruption has been successfully forecasted, as this kind of eruption lacks clear and univocal precursory signals. Understanding how deep magmatic gas and heat fluxes interact with groundwater systems and prime phreatic eruptions is thus of pivotal importance.
Stocchi, M. +4 more
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Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract Long‐term SO2 emission rate time series are critical for deciphering the subsurface processes regulating open‐vent volcanoes, yet extracting cyclical drivers from continuous degassing records remains challenging. We analyze a 14‐year (2006–2020) SO2 emission rate data set from Whakaari/White Island, New Zealand, identifying five chronological ...
A. Mazot +5 more
wiley +1 more source
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.Abstract Volcanic edifices show complex internal structures including discontinuities at different scales. These discontinuities can act as zones of weakness and are closely linked to volcanic activity distribution and associated hazards, making their detection and monitoring essential. In this study we investigate the presence of small‐scale faults on
Quentin Dumont +4 more
wiley +1 more source
Terrestrial Analogs to Titan for Geophysical Research
Reviews of Geophysics, Volume 64, Issue 2, June 2026.Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon +21 more
wiley +1 more source