April 2007 collapse of Piton de la Fournaise: A new example of caldera formation
TLDR
The Piton de la Fournaise caldera collapse, which occurred during the April 2007 lateral eruption is one of the few large documented collapse events on this volcano as discussed by the authors.Abstract:
Collapse calderas are frequent in the evolution of volcanic systems, but very few have formed during historical times. Piton de la Fournaise is one of the world's most active basaltic shield volcanoes. The caldera collapse, which occurred during the April 2007 lateral eruption is one of the few large documented collapse events on this volcano. It helps to understand the mode and origin of caldera collapses in basaltic volcanoes. Field observations, GPS and seismic data show that the collapse occurred at an early stage of the eruption. The cyclic seismic signal suggests a step by step collapse that directly influenced the lateral eruption rate. Likely, the caldera results from the combined effect of (i) the progressive collapse of the plumbing system above the magma chamber since 2000, and (ii) the large amount of magma withdrawal during the early stage of the eruption by both a significant intrusion within the edifice and an important emission rate.read more
Citations
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The 2018 rift eruption and summit collapse of Kīlauea Volcano
Christina A. Neal,S. R. Brantley,Loren Antolik,J. L. Babb,Matthew K. Burgess,K. Calles,M. Cappos,Jefferson C. Chang,S. Conway,Liliana G. DeSmither,P. Dotray,Tamar Elias,P. Fukunaga,S. Fuke,Ingrid A. Johanson,Kevan Kamibayashi,James P. Kauahikaua,R. L. Lee,S. Pekalib,Asta Miklius,W. Million,C. J. Moniz,Patricia A. Nadeau,Paul G. Okubo,Carolyn Parcheta,Matthew R. Patrick,B. Shiro,Donald A. Swanson,W. Tollett,Frank A. Trusdell,E. F. Younger,Michael H. Zoeller,E. K. Montgomery-Brown,Kyle R. Anderson,Michael P. Poland,J. L. Ball,J. Bard,Michelle L. Coombs,Hannah R. Dietterich,Christoph Kern,Weston A. Thelen,Peter F. Cervelli,Tim R. Orr,Bruce F. Houghton,C. A. Gansecki,R. Hazlett,Paul Lundgren,A. K. Diefenbach,A. H. Lerner,Gregory P. Waite,Peter J. Kelly,Laura E. Clor,Cynthia Werner,K. Mulliken,G. Fisher,David E. Damby +55 more
TL;DR: Careful historical observation and monitoring of Kīlauea enabled successful forecasting of hazardous events, and cyclic inflation, deflation, and eventual collapse of the summit was tied to lava eruption from lower East Rift Zone fissures.
Journal ArticleDOI
Gradual caldera collapse at Bárdarbunga volcano, Iceland, regulated by lateral magma outflow
Magnús T. Gudmundsson,Kristín Jónsdóttir,Andrew Hooper,Eoghan P. Holohan,Sæmundur A. Halldórsson,Benedikt G. Ófeigsson,Simone Cesca,Kristín Vogfjörd,Freysteinn Sigmundsson,Thórdís Högnadóttir,Páll Einarsson,Olgeir Sigmarsson,Olgeir Sigmarsson,Alexander H. Jarosch,Kristján Jónasson,Eyjólfur Magnússon,Sigrún Hreinsdóttir,Marco Bagnardi,Michelle Parks,Vala Hjörleifsdóttir,Finnur Pálsson,Thomas R. Walter,Martin P. J. Schöpfer,Sebastian Heimann,Hannah I. Reynolds,Stéphanie Dumont,Eniko Bali,Gudmundur H. Gudfinnsson,Torsten Dahm,Matthew J. Roberts,Martin Hensch,Joaquín M. C. Belart,Karsten Spaans,Sigurdur Jakobsson,Gunnar B. Gudmundsson,Hildur M. Fridriksdottir,Hildur M. Fridriksdottir,Vincent Drouin,Tobias Dürig,Guðfinna Aðalgeirsdóttir,Morten S. Riishuus,Gro Pedersen,Tayo van Boeckel,Björn Oddsson,Melissa Anne Pfeffer,Sara Barsotti,Baldur Bergsson,Amy Donovan,Mike Burton,Alessandro Aiuppa +49 more
TL;DR: It is concluded that interaction between the pressure exerted by the subsiding reservoir roof and the physical properties of the subsurface flow path explain the gradual near-exponential decline of both the collapse rate and the intensity of the 180-day-long eruption of the Bárdarbunga volcano.
Journal ArticleDOI
Magma transport and storage at Piton de La Fournaise (La Réunion) between 1972 and 2007: A review of geophysical and geochemical data
TL;DR: In this article, a detailed analysis of geophysical and geochemical data associated with the last 35 years of activity at Piton de La Fournaise volcano has been presented, showing evidence of major changes in the shallow plumbing system in 2000.
Journal ArticleDOI
The April 2007 eruption and the Dolomieu crater collapse, two major events at Piton de la Fournaise (La Réunion Island, Indian Ocean)
Thomas Staudacher,Valérie Ferrazzini,Aline Peltier,Philippe Kowalski,Patrice Boissier,Philippe Catherine,Frédéric Lauret,Frédérick Massin +7 more
TL;DR: In this article, the authors present a chronology of two related major events in the recent activity of Piton de la Fournaise seen by the scientific networks of the volcanological observatory (OVPF/IPGP) and field observations, which allowed to back up the scenario of the caldera formation and quantify these two exceptional episodes.
Journal ArticleDOI
Slope instabilities in Dolomieu crater, Réunion Island: From seismic signals to rockfall characteristics
TL;DR: In this article, a scaling law is revealed between seismic energy and signal duration for granular flows and a simple method based on these ratios is proposed to estimate the volumes of rockfalls from their seismic signal.
References
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TL;DR: The summit caldera of Isla Fernandina, a large, uninhabited basaltic shield volcano, was further enlarged by 1 to 2 km(3) in June 1968, when a small quake and large vapor cloud on 11 June were followed by a remarkable volcanic ash cloud and, after another hour, by a major explosion recorded at infrasonic stations throughout the hemisphere.
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Finding realistic dike models from interferometric synthetic aperture radar data: The February 2000 eruption at Piton de la Fournaise
TL;DR: In this paper, the authors developed a method to retrieve complex and realistic dike geometries and overpressures from interferometric synthetic aperture radar (InSAR) data based on a combination of a boundary element method with realistic topography and a neighbourhood algorithm inversion.
Journal ArticleDOI
Pre-eruptive migration of earthquakes at the Piton de la Fournaise volcano (Réunion Island)
TL;DR: The Piton de la Fournaise volcano was preceded by a seismic crisis unusually long for this volcano which lasted for more than 35 hours and included about 3100 events with a maximum magnitude of 2.2 as discussed by the authors.