Anatomy of phreatic eruptions [PDF]
Earth, Planets and Space, 2018 This study investigates phreatic eruptions at two similar volcanoes, Kawah Ijen (Indonesia) and White Island (New Zealand). By carefully processing broadband seismic signals, we reveal seismic signatures and characteristics of these eruptions.
Corentin Caudron +8 more
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Phreatic eruptions at crater lakes: occurrence statistics and probabilistic hazard forecast [PDF]
Journal of Applied Volcanology, 2017 Phreatic eruptions, although posing a serious threat to people in crater proximity, are often underestimated and have been comparatively understudied. The detailed eruption catalogue for Ruapehu Volcano (New Zealand) provides an exceptional opportunity to study the statistics of recurring phreatic explosions at a crater lake volcano.
Karen Strehlow +5 more
openaire +9 more sources
Insights Into the Mechanisms of Phreatic Eruptions From Continuous High Frequency Volcanic Gas Monitoring: Rincón de la Vieja Volcano, Costa Rica [PDF]
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 +2 more sources
Seismic precursors to the Whakaari 2019 phreatic eruption are transferable to other eruptions and volcanoes [PDF]
Nature Communications, 2022 Volcanic eruptions that occur without warning can be deadly in touristic and populated areas. Using a machine learning approach, the authors here discover distinctive patterns hidden in the seismic signals of a number of New Zealand and Alaskan volcanoes,
Alberto Ardid +3 more
doaj +4 more sources
Direct dating of Quaternary phreatic maar eruptions by luminescence methods
Geology, 2011 The suitability of quartz optically stimulated luminescence (OSL) and feldspar infrared stimulated luminescence (IRSL) for the direct dating of phreatic eruptions was tested on examples from the Eifel Volcanic Field, Germany. The mean IRSL age of 11.6 ± 0.5 ka for Ulmener Maar Tephra is in excellent agreement with the independent age control (11 ± 0.1 ...
Preusser, Frank +2 more
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Recurrent patterns in fluid geochemistry data prior to phreatic eruptions
, 2016 Not all volcanic eruptions are magma-driven: the sudden evaporation and expansion of heated groundwater may cause phreatic eruptions, where the magma involvement is absent or negligible. Active crater lakes top some of the volcanoes prone to phreatic activity.
Rouwet, Dmitri +5 more
core +4 more sources
Experimental modelling of fragmentation processes within phreatic and hydrothermal eruptions [PDF]
, 2012 Phreatic and hydrothermal eruptions often occur with little or no warning representing a significant hazard within geothermal regions. These violent eruptions occur at a range of temperatures and pressures within varying rock types. A range of mechanisms including heating or decompression, allows hydrothermal/supercritical fluid to rapidly flash to ...
Foote, Lauren Charlotte
openaire +3 more sources
Phreatic eruptions at Whakaari Volcano driven by hydrothermal mineralisation and magmatic gas input
Communications Earth & EnvironmentPhreatic eruptions are a potentially lethal type of volcanic activity that is notoriously difficult to forecast. Understanding the complex processes that make eruptions more likely is a key step towards detecting precursory signals.
Sophie C. Pearson-Grant +2 more
doaj +3 more sources
Phreatic eruptions and the influence of hydrothermal alteration on their processes [PDF]
, 2016 Phreatic eruptions are possibly the most drastic surface expressions of hydrothermal activity within active epithermal systems (geothermal fields), and they are still poorly understood. Various phenomena, such as fumaroles, hot springs, mud pools, and soil encrustations represent further obvious features of the interaction between outgassing ...
Mayer, Klaus
core +3 more sources
Modeling the priming mechanism of phreatic eruptions
Phreatic eruptions are non-magmatic explosions consisting in the sudden expansions of groundwater due to the input of hot magmatic ¿¿uids and heat. Although such eruptions are intrinsically less hazardous than magmatic eruptions (i.e. the energy released in the process is relatively low) the lack of clear and early precursory signals increases the ...
Stocchi, M. +5 more
openaire +2 more sources