Hidden pressurized fluids prior to the 2014 phreatic eruption at Mt Ontake [PDF]
Nature Communications, 2022 Phreatic volcanic eruptions can be unexpected and devastating. Here the authors, using seismic-based methodologies, find that pressurized fluids accumulated 5 months before the deadly phreatic eruption at Mt Ontake; a period previously considered as ...
Corentin Caudron +7 more
doaj +4 more sources
Understanding and forecasting phreatic eruptions driven by magmatic degassing [PDF]
Earth, Planets and Space, 2018 This paper examines phreatic eruptions which are driven by inputs of magma and magmatic gas. We synthesize data from several significant phreatic systems, including two in Costa Rica (Turrialba and Poás) which are currently highly active and hazardous ...
John Stix, J. Maarten de Moor
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Seismic precursors to the Whakaari 2019 phreatic eruption are transferable to other eruptions and volcanoes. [PDF]
Nat Commun, 2022 AbstractVolcanic eruptions that occur without warning can be deadly in touristic and populated areas. Even with real-time geophysical monitoring, forecasting sudden eruptions is difficult, because their precursors are hard to recognize and can vary between volcanoes.
Ardid A, Dempsey D, Caudron C, Cronin S.
europepmc +5 more sources
The 2019–2020 volcanic eruption of Late’iki (Metis Shoal), Tonga [PDF]
Scientific Reports, 2022 Late’iki (previously known as Metis Shoal) is a highly active volcano in the Tofua arc with at least four temporary island-building eruptions and one submarine eruption in the last 55 years.
I. A. Yeo +8 more
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2014 Mount Ontake eruption: characteristics of the phreatic eruption as inferred from aerial observations [PDF]
Earth, Planets and Space, 2016 The sudden eruption of Mount Ontake on September 27, 2014, led to a tragedy that caused more than 60 fatalities including missing persons. In order to mitigate the potential risks posed by similar volcano-related disasters, it is vital to have a clear understanding of the activity status and progression of eruptions.
Fukashi Maeno +2 more
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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 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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Fluid flow of CO2-driven geyser activity as inferred from tilt and self-potential observations of the Kibedani Geyser Japan [PDF]
Scientific ReportsWe conducted multi-parameter, multi-site observations at the Kibedani Geyser, Japan, where cold spring-water eruptions (20 °C) are driven by underground CO2 pressure.
Harutou Tanabe +2 more
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Phreatic eruptions at Whakaari Volcano driven by hydrothermal mineralisation and magmatic gas input [PDF]
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
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Sensitivity to lunar cycles prior to the 2007 eruption of Ruapehu volcano [PDF]
Scientific Reports, 2018 A long-standing question in Earth Science is the extent to which seismic and volcanic activity can be regulated by tidal stresses, a repeatable and predictable external excitation induced by the Moon-Sun gravitational force.
Társilo Girona +2 more
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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
doaj +7 more sources