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Breathing of the Nevado del Ruiz volcano reservoir, Colombia, inferred from repeated seismic tomography. / Vargas, Carlos A.; Koulakov, Ivan; Jaupart, Claude et al.

In: Scientific Reports, Vol. 7, 46094, 10.04.2017, p. 46094.

Research output: Contribution to journal › Article › peer-review

Harvard

Vargas, CA, Koulakov, I, Jaupart, C, Gladkov, V, Gomez, E, El Khrepy, S & Al-Arifi, N 2017, 'Breathing of the Nevado del Ruiz volcano reservoir, Colombia, inferred from repeated seismic tomography', Scientific Reports, vol. 7, 46094, pp. 46094. https://doi.org/10.1038/srep46094

APA

Vargas, C. A., Koulakov, I., Jaupart, C., Gladkov, V., Gomez, E., El Khrepy, S., & Al-Arifi, N. (2017). Breathing of the Nevado del Ruiz volcano reservoir, Colombia, inferred from repeated seismic tomography. Scientific Reports, 7, 46094. [46094]. https://doi.org/10.1038/srep46094

Vancouver

Vargas CA, Koulakov I, Jaupart C, Gladkov V, Gomez E, El Khrepy S et al. Breathing of the Nevado del Ruiz volcano reservoir, Colombia, inferred from repeated seismic tomography. Scientific Reports. 2017 Apr 10;7:46094. 46094. doi: 10.1038/srep46094

Author

Vargas, Carlos A. ; Koulakov, Ivan ; Jaupart, Claude et al. / Breathing of the Nevado del Ruiz volcano reservoir, Colombia, inferred from repeated seismic tomography. In: Scientific Reports. 2017 ; Vol. 7. pp. 46094.

BibTeX

@article{fb4aaa004e134d508aa7832dc5381d20,
title = "Breathing of the Nevado del Ruiz volcano reservoir, Colombia, inferred from repeated seismic tomography",
abstract = "Nevado del Ruiz volcano (NRV), Columbia, is one of the most dangerous volcanoes in the world and caused the death of 25,000 people in 1985. Using a new algorithm for repeated tomography, we have found a prominent seismic anomaly with high values of the Vp/Vs ratio at depths of 2-5 km below the surface, which is associated with a shallow magma reservoir. The amplitude and shape of this anomaly changed during the current phase of unrest which began in 2010. We interpret these changes as due to the ascent of gas bubbles through magma and to degassing of the reservoir. In 2011-2014, most of this gas escaped through permeable roof rocks, feeding surface fumarole activity and leading to a gradual decrease of the Vp/Vs ratio in the reservoir. This trend was reversed in 2015-2016 due to replenishment of the reservoir by a new batch of volatile-rich magma likely to sustain further volcanic activity. It is argued that the recurring {"}breathing{"} of the shallow reservoir is the main cause of current eruptions at NRV.",
keywords = "13 NOVEMBER 1985, BENEATH, ERUPTION, GAS, LAHARS, MAGMA CHAMBER, MODEL",
author = "Vargas, {Carlos A.} and Ivan Koulakov and Claude Jaupart and Valery Gladkov and Eliana Gomez and {El Khrepy}, Sami and Nassir Al-Arifi",
note = "Publisher Copyright: {\textcopyright} The Author(s) 2017.",
year = "2017",
month = apr,
day = "10",
doi = "10.1038/srep46094",
language = "English",
volume = "7",
pages = "46094",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",

}

RIS

TY - JOUR

T1 - Breathing of the Nevado del Ruiz volcano reservoir, Colombia, inferred from repeated seismic tomography

AU - Vargas, Carlos A.

AU - Koulakov, Ivan

AU - Jaupart, Claude

AU - Gladkov, Valery

AU - Gomez, Eliana

AU - El Khrepy, Sami

AU - Al-Arifi, Nassir

N1 - Publisher Copyright: © The Author(s) 2017.

PY - 2017/4/10

Y1 - 2017/4/10

N2 - Nevado del Ruiz volcano (NRV), Columbia, is one of the most dangerous volcanoes in the world and caused the death of 25,000 people in 1985. Using a new algorithm for repeated tomography, we have found a prominent seismic anomaly with high values of the Vp/Vs ratio at depths of 2-5 km below the surface, which is associated with a shallow magma reservoir. The amplitude and shape of this anomaly changed during the current phase of unrest which began in 2010. We interpret these changes as due to the ascent of gas bubbles through magma and to degassing of the reservoir. In 2011-2014, most of this gas escaped through permeable roof rocks, feeding surface fumarole activity and leading to a gradual decrease of the Vp/Vs ratio in the reservoir. This trend was reversed in 2015-2016 due to replenishment of the reservoir by a new batch of volatile-rich magma likely to sustain further volcanic activity. It is argued that the recurring "breathing" of the shallow reservoir is the main cause of current eruptions at NRV.

AB - Nevado del Ruiz volcano (NRV), Columbia, is one of the most dangerous volcanoes in the world and caused the death of 25,000 people in 1985. Using a new algorithm for repeated tomography, we have found a prominent seismic anomaly with high values of the Vp/Vs ratio at depths of 2-5 km below the surface, which is associated with a shallow magma reservoir. The amplitude and shape of this anomaly changed during the current phase of unrest which began in 2010. We interpret these changes as due to the ascent of gas bubbles through magma and to degassing of the reservoir. In 2011-2014, most of this gas escaped through permeable roof rocks, feeding surface fumarole activity and leading to a gradual decrease of the Vp/Vs ratio in the reservoir. This trend was reversed in 2015-2016 due to replenishment of the reservoir by a new batch of volatile-rich magma likely to sustain further volcanic activity. It is argued that the recurring "breathing" of the shallow reservoir is the main cause of current eruptions at NRV.

KW - 13 NOVEMBER 1985

KW - BENEATH

KW - ERUPTION

KW - GAS

KW - LAHARS

KW - MAGMA CHAMBER

KW - MODEL

UR - http://www.scopus.com/inward/record.url?scp=85017311059&partnerID=8YFLogxK

U2 - 10.1038/srep46094

DO - 10.1038/srep46094

M3 - Article

C2 - 28393851

AN - SCOPUS:85017311059

VL - 7

SP - 46094

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 46094

ER -

ID: 10041365