The dynamics of a long-lasting effusive eruption modulated by Earth tides
International audience Deciphering eruptive dynamics in near-real time is essential when dealing with hazard assessment and population evacuation. Recognition of specific patterns in time-series measured during volcanic activity may help decipher distinctive behavior at active volcanoes, providing i...
Published in: | Earth and Planetary Science Letters |
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Online Access: | https://hal-insu.archives-ouvertes.fr/insu-03584799 https://doi.org/10.1016/j.epsl.2020.116145 |
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ftunivnantes:oai:HAL:insu-03584799v1 2023-05-15T16:50:31+02:00 The dynamics of a long-lasting effusive eruption modulated by Earth tides Dumont, Stéphanie Le Mouël, Jean-Louis Courtillot, Vincent Lopes, Fernando Sigmundsson, Freysteinn Coppola, Diego Eibl, Eva P. S. Bean, Christopher J. Institut de Physique du Globe de Paris (IPGP (UMR_7154)) Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) 2020 https://hal-insu.archives-ouvertes.fr/insu-03584799 https://doi.org/10.1016/j.epsl.2020.116145 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1016/j.epsl.2020.116145 insu-03584799 https://hal-insu.archives-ouvertes.fr/insu-03584799 BIBCODE: 2020E&PSL.53616145D doi:10.1016/j.epsl.2020.116145 EARTH AND PLANETARY SCIENCE LETTERS https://hal-insu.archives-ouvertes.fr/insu-03584799 EARTH AND PLANETARY SCIENCE LETTERS, 2020, 536, p. 99-122. ⟨10.1016/j.epsl.2020.116145⟩ thermal anomalies Holuhraun Earth tides effusive eruption seismic tremor lava flows [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2020 ftunivnantes https://doi.org/10.1016/j.epsl.2020.116145 2022-12-07T00:43:31Z International audience Deciphering eruptive dynamics in near-real time is essential when dealing with hazard assessment and population evacuation. Recognition of specific patterns in time-series measured during volcanic activity may help decipher distinctive behavior at active volcanoes, providing insights into the underlying driving mechanisms. Multi-parameter data sets usually agree on the overall trend characterizing the temporal evolution of an eruption providing insights into the first-order eruptive dynamics. However, second-order variations detected in different data sets remain often poorly understood. The 2014-2015 Holuhraun eruption (Iceland) offers an excellent opportunity to investigate the dynamics of a long-lasting effusive eruption. We analyze the seismic tremor and the volcanic radiated power emitted by the lava field during the 6 months of the eruption using Singular Spectrum Analysis (SSA). In both geophysical time-series, we identify periods from ∼5 to ∼32 days coinciding with periods of Earth tides. Here we show that ∼50% of both signals are composed of tidal periods suggesting that magma movements follow frequencies imposed by lunisolar forces within the crust and at Earth's surface. Article in Journal/Newspaper Iceland Université de Nantes: HAL-UNIV-NANTES Holuhraun ENVELOPE(-16.831,-16.831,64.852,64.852) Earth and Planetary Science Letters 536 116145 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
thermal anomalies Holuhraun Earth tides effusive eruption seismic tremor lava flows [SDU]Sciences of the Universe [physics] |
spellingShingle |
thermal anomalies Holuhraun Earth tides effusive eruption seismic tremor lava flows [SDU]Sciences of the Universe [physics] Dumont, Stéphanie Le Mouël, Jean-Louis Courtillot, Vincent Lopes, Fernando Sigmundsson, Freysteinn Coppola, Diego Eibl, Eva P. S. Bean, Christopher J. The dynamics of a long-lasting effusive eruption modulated by Earth tides |
topic_facet |
thermal anomalies Holuhraun Earth tides effusive eruption seismic tremor lava flows [SDU]Sciences of the Universe [physics] |
description |
International audience Deciphering eruptive dynamics in near-real time is essential when dealing with hazard assessment and population evacuation. Recognition of specific patterns in time-series measured during volcanic activity may help decipher distinctive behavior at active volcanoes, providing insights into the underlying driving mechanisms. Multi-parameter data sets usually agree on the overall trend characterizing the temporal evolution of an eruption providing insights into the first-order eruptive dynamics. However, second-order variations detected in different data sets remain often poorly understood. The 2014-2015 Holuhraun eruption (Iceland) offers an excellent opportunity to investigate the dynamics of a long-lasting effusive eruption. We analyze the seismic tremor and the volcanic radiated power emitted by the lava field during the 6 months of the eruption using Singular Spectrum Analysis (SSA). In both geophysical time-series, we identify periods from ∼5 to ∼32 days coinciding with periods of Earth tides. Here we show that ∼50% of both signals are composed of tidal periods suggesting that magma movements follow frequencies imposed by lunisolar forces within the crust and at Earth's surface. |
author2 |
Institut de Physique du Globe de Paris (IPGP (UMR_7154)) Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) |
format |
Article in Journal/Newspaper |
author |
Dumont, Stéphanie Le Mouël, Jean-Louis Courtillot, Vincent Lopes, Fernando Sigmundsson, Freysteinn Coppola, Diego Eibl, Eva P. S. Bean, Christopher J. |
author_facet |
Dumont, Stéphanie Le Mouël, Jean-Louis Courtillot, Vincent Lopes, Fernando Sigmundsson, Freysteinn Coppola, Diego Eibl, Eva P. S. Bean, Christopher J. |
author_sort |
Dumont, Stéphanie |
title |
The dynamics of a long-lasting effusive eruption modulated by Earth tides |
title_short |
The dynamics of a long-lasting effusive eruption modulated by Earth tides |
title_full |
The dynamics of a long-lasting effusive eruption modulated by Earth tides |
title_fullStr |
The dynamics of a long-lasting effusive eruption modulated by Earth tides |
title_full_unstemmed |
The dynamics of a long-lasting effusive eruption modulated by Earth tides |
title_sort |
dynamics of a long-lasting effusive eruption modulated by earth tides |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal-insu.archives-ouvertes.fr/insu-03584799 https://doi.org/10.1016/j.epsl.2020.116145 |
long_lat |
ENVELOPE(-16.831,-16.831,64.852,64.852) |
geographic |
Holuhraun |
geographic_facet |
Holuhraun |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
EARTH AND PLANETARY SCIENCE LETTERS https://hal-insu.archives-ouvertes.fr/insu-03584799 EARTH AND PLANETARY SCIENCE LETTERS, 2020, 536, p. 99-122. ⟨10.1016/j.epsl.2020.116145⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.epsl.2020.116145 insu-03584799 https://hal-insu.archives-ouvertes.fr/insu-03584799 BIBCODE: 2020E&PSL.53616145D doi:10.1016/j.epsl.2020.116145 |
op_doi |
https://doi.org/10.1016/j.epsl.2020.116145 |
container_title |
Earth and Planetary Science Letters |
container_volume |
536 |
container_start_page |
116145 |
_version_ |
1766040648135213056 |