Results 41 to 50 of about 74,306 (189)
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
openaire +3 more sources
Atmospheric and environmental effects of the 1783-1784 Laki eruption: A review and reassessment [PDF]
, 2003 The 1783–1784 Laki flood lava eruption in Iceland emitted ∼122 megatons (Mt) SO2 into the atmosphere and maintained a sulfuric aerosol veil that hung over the Northern Hemisphere for >5 months. The eruption columns extended to 9–13 km and released ∼95
Thordarson, Thorvaldur, Self, Stephen
core +1 more source
Frontiers in Earth Science, 2019 Understanding the trigger mechanisms of phreatic eruptions is key to mitigating the effects of these hazardous but poorly forecastable volcanic events.
Angelo Battaglia +11 more
doaj +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.Abstract Vulcanian eruptions are classically associated with the launch of ballistic ejecta and particularly with the production of breadcrust bombs. Morpho‐textural analysis of these ejecta provides critical insight into the poorly constrained processes controlling the complex dynamics of Vulcanian activity.
P. Gabellini +4 more
wiley +1 more source
The 1723 AD violent Strombolian and phreatomagatic eruption at Irazu volcano (Costa Rica) [PDF]
, 2013 The largest of the recorded historic eruptions at Irazú volcano began on February 16, 1723 and lasted until at least December 11. We here critically examine deposits of this eruption exposed on the summit of Irazú. Our reconstruction of the eruption is
Schmincke, Hans-Ulrich, Alvarado, G. E.
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Seismic Tremor as a Precursor to Hydrothermal Explosions Near Mutnovsky Volcano (Kamchatka)
Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.Abstract Mutnovsky Volcano, ∼70 km SW of Petropavlovsk‐Kamchatsky, exhibits persistent degassing, hosts active hydrothermal springs and the Mutnovsky Geothermal Power Plant (MGPP) on its slopes. Using the network covariance matrix approach, we analyzed seismic data recorded in 2023–2024 by 15 seismic stations operating around Mutnovsky Volcano.
Y. Berezhnev +7 more
wiley +1 more source
Accurate hindcasting of explosive eruptions at Whakaari, New Zealand
VolcanicaPhreatic eruptions are small, sudden events, commonly with few precursory signals. They are driven by interactions between magmatic and hydrothermal processes at shallow levels beneath the surface.
John Stix, Craig Miller, Yajing Liu
doaj +1 more source
Earth, Planets and Space, 2021 The Whakaari/White Island volcano, located ~ 50 km off the east coast of the North Island in New Zealand, has experienced sequences of quiescence, unrest, magmatic and phreatic eruptions over the last decades.
Corentin Caudron +13 more
doaj +1 more source
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.Abstract Titanomagnetite in alkaline maar deposits exhibits variable syn‐ and post‐crystallization alteration linked to wet emplacement and groundwater fluctuations, which remain poorly documented. Magnetic and mineralogical analyses of lapilli, scoria, and basalt from ICDP Eger drill cores S4 and S4b (Bažina maar, western Eger Graben, Czechia) reveal ...
Johanna Berckhan +6 more
wiley +1 more source
Depositional record of historic lahars in the Whangaehu Gorge, Mt. Ruapehu [PDF]
, 2008 Mt. Ruapehu is one of the most lahar prone volcanoes in the world, having both a crater lake and six small glaciers upon its 2797 m summit. The major outlet for the crater lake, the Whangaehu Gorge, has hosted over 46 historic lahars.
Graettinger, Alison Hollomon
core