globalchange  > 气候变化与战略
DOI: 10.1016/j.epsl.2020.116653
论文题名:
Tracking dike propagation leading to the 2018 Kīlauea eruption
作者: Lengliné O.; Duputel Z.; Okubo P.G.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2021
卷: 553
语种: 英语
中文关键词: dike dynamics ; Kilauea volcano ; seismicity
英文关键词: Levees ; Seismology ; Volcanoes ; Dike propagation ; Logarithmic models ; Magma intrusion ; Magma transfers ; Physical model ; Real time monitoring ; Seismic amplitudes ; Seismological data ; Hydraulic structures ; crater ; dike ; magma ; magma chamber ; seismicity ; seismology ; volcanic eruption ; Hawaii [(ISL) Hawaiian Islands] ; Hawaii [United States] ; Hawaiian Islands ; Kilauea
英文摘要: In May 2018, a major eruption occurred in the lower East Rift Zone of the Kīlauea volcano. The eruption started with the collapse of the Pu'u 'Ō'ō crater followed by a large downrift dike intrusion for more than 20 km in a well instrumented region. This large volcanic event is a rare opportunity to infer the dynamics of magma transfer that is often difficult to capture. In this study, we use seismological records to infer the migration of the dike. We detect, pick and locate more than 6000 earthquakes during the course of the magma intrusion. Using these locations together with near-field seismic amplitudes, we can precisely reconstruct the progression of the dike over time. We show that this migration is consistent with a logarithmic model of dike growth connected to a feeding magma chamber. The decrease of pressure inside the reservoir is also consistent with the dike propagation model derived from our observations. This work encourages real time monitoring of magma intrusions from the combination of seismological data and physical models. © 2020 The Authors
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165559
Appears in Collections:气候变化与战略

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作者单位: Institut de Physique du Globe de Strasbourg, UMR7516, Université de Strasbourg/EOST, CNRS, Strasbourg, France; Department of Earth Sciences, School of Ocean and Earth Science and Technology, University of Hawaii at Manoa, Honolulu, HI 96822, United States

Recommended Citation:
Lengliné O.,Duputel Z.,Okubo P.G.. Tracking dike propagation leading to the 2018 Kīlauea eruption[J]. Earth and Planetary Science Letters,2021-01-01,553
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