DOI: 10.1002/2014GL059691
论文题名: The 2007 eruptions and caldera collapse of the Piton de la Fournaise volcano (La Réunion Island) from tilt analysis at a single very broadband seismic station
作者: Fontaine F.R. ; Roult G. ; Michon L. ; Barruol G. ; Muro A.D.
刊名: Geophysical Research Letters
ISSN: 0094-10153
EISSN: 1944-9884
出版年: 2014
卷: 41, 期: 8 起始页码: 2803
结束页码: 2811
语种: 英语
英文关键词: broadband seismometer
; caldera collapse
; deep magma injection
; Piton de la Fournaise
; tidal correction
; tilt
Scopus关键词: Structural geology
; Volcanoes
; Broad-band seismometers
; caldera collapse
; Magma injection
; Piton de La Fournaise
; tilt
; Seismology
; caldera
; magma
; seismic data
; seismograph
; tilt
; volcanic eruption
; Mascarene Islands
; Piton de la Fournaise
; Reunion
英文摘要: Seismic records from La Réunion Island very broadband Geoscope station are investigated to constrain the link between the 2007 eruptive sequence and the related caldera collapse of the Piton de la Fournaise volcano. Tilt estimated from seismic records reveals that the three 2007 eruptions belong to a single inflation-deflation cycle. Tilt trend indicates that the small-volume summit eruption of 18 February occurred during a phase of continuous inflation that started in January 2007. Inflation decelerated 24days before a second short-lived, small-volume eruption on 30 March, almost simultaneous with a sudden, large-scale deflation of the volcano. Deflation rate, which had stabilized at relatively low level, increased anew on 1 April while no magma was erupted, followed on 2 April by a major distal eruption and on 5 April by a summit caldera collapse. Long-term tilt variation suggests that the 2007 eruptive succession was triggered by a deep magma input. Key Points Tilt change precedes both March and April 2007 Piton de la Fournaise eruptions Tilt variation suggests deep magma injection into the volcano plumbing system The 2007 eruptions and caldera collapse are related to an inflation-deflation cycle ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84900812001&doi=10.1002%2f2014GL059691&partnerID=40&md5=58bd84245d8ccfe010f2675a52de17b0
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7417
Appears in Collections: 气候减缓与适应
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作者单位: Laboratoire GéoSciences Réunion, Université de la Réunion, Université Paris Diderot, Saint Denis, France
Recommended Citation:
Fontaine F.R.,Roult G.,Michon L.,et al. The 2007 eruptions and caldera collapse of the Piton de la Fournaise volcano (La Réunion Island) from tilt analysis at a single very broadband seismic station[J]. Geophysical Research Letters,2014-01-01,41(8).