M. A. Abchir, S. M. Semet, G. Boudon, P. Ildefonse, P. Bachèlery et al., Huge hydrothermal explosive activity on Piton de la Fournaise, Réunion Island: The Bellecombe ash member, pp.447-455, 1998.

V. Acocella and A. Tibaldi, Dike propagation driven by volcano collapse: A general model tested at Stromboli, Italy, Geophysical Research Letters, vol.54, issue.B11, pp.10-1029, 2005.
DOI : 10.1029/2004GL022248

C. Annen, J. Lénat, and A. Provost, The long-term growth of volcanic edifices: numerical modelling of the role of dyke intrusion and lava-flow emplacement, Journal of Volcanology and Geothermal Research, vol.105, issue.4, pp.263-289, 2001.
DOI : 10.1016/S0377-0273(00)00257-2

P. Bachèlery, Le Piton de la Fournaise (Ile de la Réunion) Etude volcanologique, structurale et pétrologique, 1981.

P. Bachèlery and P. Mairine, Evolution volcano-structurale du Piton de la Fournaise depuis 0.53 Ma, Le Volcanisme de la Réunion, Monographie, pp.213-242, 1990.

P. Bachèlery, B. Robineau, M. Courteaud, and C. Savin, Debris avalanches on the western flank of Piton des Neiges shield volcano (Reunion Island), Bulletin de la Societe Geologique de France, vol.174, issue.2, pp.125-140, 2003.
DOI : 10.2113/174.2.125

Y. Benderitter, Etudes géoélectriques et e ´lectromagnétiques a ` la Réunion, Le Volcanisme de la Réunion, Monographie, 1990.

A. Borgia, Dynamic basis of volcanic spreading, Journal of Geophysical Research: Solid Earth, vol.97, issue.43, pp.791-808, 1994.
DOI : 10.1029/94JB00578

A. Borgia, J. Burr, W. Montero, L. D. Morales, and G. E. Alvarado, Fault propagation folds induced by gravitational failure and slumping of the central Costa Rica Volcanic Range: Implications for large terrestrial and Martian volcanic edifices, Journal of Geophysical Research, vol.309, issue.4, pp.357-14382, 1990.
DOI : 10.1029/JB095iB09p14357

P. Briole, P. Bachèlery, B. Mcguire, J. Moss, J. C. Ruegg et al., Deformation at Piton de la Fournaise: Evolution of the monitoring techniques and knowledge acquired in the last five years, Volcanic Risk?The European Laboratory Volcanoes, Publ. EUR 18161 EN, pp.467-474, 1998.

G. F. Camoin, L. F. Montaggioni, and C. J. Braithwite, Late glacial to post glacial sea levels in the Western Indian Ocean, Marine Geology, vol.206, issue.1-4, pp.119-146, 2004.
DOI : 10.1016/j.margeo.2004.02.003

J. M. Cantagrel, N. O. Arnaud, E. Ancochea, J. M. Fúster, and M. J. Huertas, Repeated debris avalanches on Tenerife and genesis of Las Ca??adas caldera wall (Canary Islands), Geology, vol.27, issue.8, pp.739-742, 1999.
DOI : 10.1130/0091-7613(1999)027<0739:RDAOTA>2.3.CO;2

E. Cecchi, B. Van-wyk-de-vries, and J. M. Lavest, Flank spreading and collapse of weak-cored volcanoes, Bulletin of Volcanology, vol.26, issue.1, pp.72-91, 2005.
DOI : 10.1007/s00445-004-0369-3

D. A. Clague and R. P. Denlinger, Role of olivine cumulates in destabilizing the flanks of Hawaiian volcanoes, Bulletin of Volcanology, vol.56, issue.6-7, pp.425-43410, 1994.
DOI : 10.1007/BF00302824

J. Coudray, P. Mairine, E. Nicolini, J. M. Clerc, and R. Casal, Approches hydrogéologique, Volcanic Risk?The European Laboratory Volcanoes , Publ. EUR 18161 EN, pp.307-355, 1990.

A. Cullen, A. R. Macbirney, and R. D. Rodgers, Structural controls on the morphology of Galapagos shields, Structural controls on the morphology of Galapagos shields, pp.143-151, 1987.
DOI : 10.1016/0377-0273(87)90099-0

S. J. Day, S. I. Heleno, J. F. Silva, and . Fonseca, A past giant lateral collapse and present-day flank instability of Fogo, Cape Verde Islands, Journal of Volcanology and Geothermal Research, vol.94, issue.1-4, pp.191-218, 1999.
DOI : 10.1016/S0377-0273(99)00103-1

C. Deniel, G. Kieffer, and J. Lecointre, New 230Th-238U and 14C age determinations from Piton des Neiges volcano, Reunion ??? A revised chronology for the Differentiated Series, Journal of Volcanology and Geothermal Research, vol.51, issue.3, pp.253-267, 1992.
DOI : 10.1016/0377-0273(92)90126-X

B. De-voogd, S. Pou-palomé, A. Hirn, P. Charvis, J. Gallart et al., Vertical movements and material transport during hotspot activity: Seismic reflection profiling offshore La R??union, Journal of Geophysical Research: Solid Earth, vol.47, issue.B2, pp.2855-2874, 1999.
DOI : 10.1029/98JB02842

M. St, Helens intrusion from analogue models, Geophys. Res. Lett, vol.28, pp.639-642

W. A. Duffield, L. Stieltjes, and J. Varet, Huge landslide blocks in the growth of piton de la fournaise, La r??union, and Kilauea volcano, Hawaii, Journal of Volcanology and Geothermal Research, vol.12, issue.1-2, pp.147-160, 1982.
DOI : 10.1016/0377-0273(82)90009-9

P. Gillot and P. E. , Eruptive history of the Piton de la Fournaise volcano, Reunion Island, Indian Ocean, Journal of Volcanology and Geothermal Research, vol.36, issue.1-3, pp.53-65, 1989.
DOI : 10.1016/0377-0273(89)90005-X

P. Gillot and P. E. Lefèvre, Model for the structural evolution of the volcanoes of R??union Island, Model for the structural evolution of the volcanoes of Réunion island, pp.291-302, 1994.
DOI : 10.1016/0012-821X(94)90003-5

T. Hanebuth, K. Statteger, and P. M. Grootes, Rapid Flooding of the Sunda Shelf: A Late-Glacial Sea-Level Record, Science, vol.288, issue.5468, pp.1033-1035, 2000.
DOI : 10.1126/science.288.5468.1033

M. Hürlimann, E. Turon, and J. Marti, Large landslides triggered by caldera collapse events in Tenerife, Canary Islands, Physics and Chemistry of the Earth, Part A: Solid Earth and Geodesy, vol.24, issue.10, pp.921-924, 1999.
DOI : 10.1016/S1464-1895(99)00136-2

M. Hürlimann, J. Marti, and A. Ledesma, Morphological and geological aspects related to large slope failures on oceanic islands: The huge La Orotava landslides on, pp.143-158, 2004.

T. Kaneko, A. Yasuda, T. Shimano, S. Nakada, T. Fujii et al., Submarine flank eruption preceding caldera subsidence during the 2000 eruption of Miyakejima Volcano, Japan, Bulletin of Volcanology, vol.77, issue.3, pp.243-25310, 2005.
DOI : 10.1007/s00445-004-0407-1

P. Labazuy, Instabilités au cours de l'e ´volution d'un e ´difice volcanique en domaine océanique: Le Piton de la Fournaise (?circ, 1991.

P. Labazuy, Recurrent landslides events on the submarine flank of Piton de la Fournaise volcano (Réunion Island), in Volcano Instability on the Earth and Other Planets, Geol. Soc. Spec. Publ, vol.110, pp.293-305, 1996.

L. Friant, A. , C. L. Harford, C. Deplus, G. Boudon et al., Geomorphological evolution of Montserrat (West Indies): importance of flank collapse and erosional processes, Journal of the Geological Society, vol.161, issue.1, pp.147-160, 2004.
DOI : 10.1144/0016-764903-017

J. Lénat and P. Bachèlery, Dynamics of magma transfer at Piton de la Fournaise volcano (Réunion Island, Modeling of Volcanic Processes, pp.57-72, 1987.

J. Lénat, P. Bachèlery, A. Bonneville, and A. Hirn, The beginning of the 1985???1987 eruptive cycle at Piton de la Fournaise (La Reunion); new insights in the magmatic and volcano-tectonic systems, Journal of Volcanology and Geothermal Research, vol.36, issue.1-3, pp.209-232, 1989.
DOI : 10.1016/0377-0273(89)90015-2

J. Lénat, D. Fitterman, D. B. Jackson, and P. Labazuy, Geoelectrical structure of the central zone of Piton de la Fournaise volcano (R??union), Geoelectrical structure of the central zone of Piton de la Fournaise volcano (Réunion), pp.75-89, 2000.
DOI : 10.1007/s004459900058

J. Lénat, B. Gibert-malengreau, and A. Galdéano, A new model for the evolution of the volcanic island of R??union (Indian Ocean), Journal of Geophysical Research: Solid Earth, vol.19, issue.12, pp.8646-8663, 2001.
DOI : 10.1029/2000JB900448

P. Lerebour, J. Rançon, and T. Augé, The Grand Br??l?? exploration drilling: New data on the deep framework of the Piton de la Fournaise volcano. Part 2: Secondary minerals, Journal of Volcanology and Geothermal Research, vol.36, issue.1-3, pp.129-137, 1989.
DOI : 10.1016/0377-0273(89)90009-7

P. W. Lipman, Subsidence of ash-flow calderas: relation to caldera size and magma-chamber geometry, Bulletin of Volcanology, vol.59, issue.3, pp.198-218, 1997.
DOI : 10.1007/s004450050186

I. Macdougall, The geochronology and evolution of the young volcanic island of R??union, Indian Ocean, Geochimica et Cosmochimica Acta, vol.35, issue.3, pp.261-270, 1971.
DOI : 10.1016/0016-7037(71)90037-8

J. Macphie, G. P. Walker, and R. L. Christiansen, Phreatomagmatic and phreatic fall and surge deposits from explosions at Kilauea volcano, Hawaii, 1790 a.d.: Keanakakoi Ash Member, Bulletin of Volcanology, vol.1, issue.5, pp.334-354, 1990.
DOI : 10.1007/BF00302047

P. Mairine and P. Bachèlery, Un grand e ´pisode e ´rosionnel dans l'histoire ancienne du Piton de la Fournaise (?circ;le de la Réunion), C. R. Acad. Sci, vol.325, pp.243-249, 1997.

B. Malengreau, J. Lénat, and J. Froger, Structure of R??union Island (Indian Ocean) inferred from the interpretation of gravity anomalies, Journal of Volcanology and Geothermal Research, vol.88, issue.3, pp.131-146, 1999.
DOI : 10.1016/S0377-0273(98)00114-0

R. K. Mark and J. Moore, Slopes of the Hawaiian ridge, U.S. Geol. Surv. Prof. Pap, vol.1350, pp.101-107, 1987.

J. Marti, M. Hürlimann, G. J. Ablay, and A. Gudmundsson, Vertical and lateral collapses on Tenerife (Canary Islands) and other volcanic ocean islands, Geology, vol.25, issue.10, pp.879-882, 1997.
DOI : 10.1130/0091-7613(1997)025<0879:VALCOT>2.3.CO;2

O. Merle and A. Borgia, Scaled experiments of volcanic spreading, Journal of Geophysical Research: Solid Earth, vol.28, issue.43, pp.805-818, 1996.
DOI : 10.1029/95JB03736

O. Merle and J. Lénat, Hybrid collapse mechanism at Piton de la Fournaise volcano, Reunion Island, Indian Ocean, Journal of Geophysical Research: Solid Earth, vol.93, issue.1, pp.216610-1029, 2003.
DOI : 10.1029/2002JB002014

L. Michon, F. Saint-ange, P. Bachelery, N. Villeneuve, and T. Staudacher, Role of the structural inheritance of the oceanic lithosphere in the magmato-tectonic evolution of Piton de la Fournaise volcano (La R??union Island), Journal of Geophysical Research: Solid Earth, vol.40, issue.B3, p.420510, 1029.
DOI : 10.1029/2005GL023720

J. G. Moore, Giant submarine landslides on the Hawaiian ridge, U.S. Geol. Surv. Prof. Pap, pp.501-95, 1964.

J. G. Moore and H. L. Krivoy, The 1962 flank eruption of Kilauea volcano and structure of the east rift zone, Journal of Geophysical Research, vol.7, issue.4, pp.2033-2045, 1964.
DOI : 10.1029/JZ069i010p02033

D. C. Munro and S. K. Rowland, Caldera morphology in the western Gal??pagos and implications for volcano eruptive behavior and mechanisms of caldera formation, Journal of Volcanology and Geothermal Research, vol.72, issue.1-2, pp.85-100, 1996.
DOI : 10.1016/0377-0273(95)00076-3

T. Naumann and D. Geist, Physical volcanology and structural development of Cerro Azul Volcano, Isabela Island, Galapagos: Implications for the development of Galapagos-type shield volcanoes, Bull. Volcanol, vol.61, pp.497-514, 2000.

J. Oehler, Les déstabilisations de flanc des volcans de l'Ile de La Réunion (Océan Indien): Mise en e ´vidence, implications et origins, 2005.

J. Oehler, P. Labazuy, and J. Lénat, Recurrence of major flank landslides during the last 2-Ma-history of Reunion Island, Bulletin of Volcanology, vol.63, issue.7, pp.585-598, 2004.
DOI : 10.1007/s00445-004-0341-2

J. F. Oehler, B. Van-wyk-de-vries, and P. Labazuy, Landslides and spreading of oceanic hot-spot and arc shield volcanoes on Low Strength Layers (LSLs): an analogue modeling approach, Journal of Volcanology and Geothermal Research, vol.144, issue.1-4, pp.169-189, 2005.
DOI : 10.1016/j.jvolgeores.2004.11.023

J. Rançon, P. Lerebour, and T. Augé, The Grand Brule exploration drilling: New data on the deep framework of the Piton de la Fournaise volcano. Part 1: Lithostratigraphic units and volcanostructural implications, Journal of Volcanology and Geothermal Research, vol.36, issue.1-3, pp.113-127, 1989.
DOI : 10.1016/0377-0273(89)90008-5

O. Roche, T. H. Druitt, and O. Merle, Experimental study of caldera formation, Journal of Geophysical Research: Solid Earth, vol.89, issue.B 10, pp.395-416, 2000.
DOI : 10.1029/1999JB900298

S. K. Rowland, Slopes, lava flow volumes, and vent distributions on Volc??n Fernandina, Gal??pagos Islands, Journal of Geophysical Research: Solid Earth, vol.24, issue.43, pp.657-27672, 1996.
DOI : 10.1029/96JB02649

S. K. Rowland and H. Garbeil, Slopes of oceanic basalt volcanoes, in Remote Sensing of Active Volcanism, Geophys. Monogr. Ser, vol.116, pp.223-247, 2000.

M. Sapin, A. Hirn, J. Lépine, and A. Nercessian, Stress, failure and fluid flow deduced from earthquakes accompanying eruptions at Piton de la Fournaise volcano, Journal of Volcanology and Geothermal Research, vol.70, issue.3-4, pp.145-167, 1996.
DOI : 10.1016/0377-0273(95)00043-7

S. A. Schumm, River Response to Baselevel Change: Implications for Sequence Stratigraphy, The Journal of Geology, vol.101, issue.2, pp.279-294, 1993.
DOI : 10.1086/648221

H. T. Stearns and G. A. Macdonald, Geology and ground-water resources of the Island of Hawaii, Bull, 1946.

A. Tibaldi, Multiple sector collapses at stromboli volcano, Italy: how they work, Bulletin of Volcanology, vol.33, issue.2-3, pp.112-125, 2001.
DOI : 10.1007/s004450100129

A. Tibaldi, Influence of cone morphology on dykes, Stromboli, Italy, Journal of Volcanology and Geothermal Research, vol.126, issue.1-2, pp.79-95, 2003.
DOI : 10.1016/S0377-0273(03)00118-5

A. Tort and A. Finizola, The buried caldera of Misti volcano, Peru, revealed by combining a self-potential survey with elliptic Fourier function analysis of topography, Journal of Volcanology and Geothermal Research, vol.141, issue.3-4, pp.283-297, 2005.
DOI : 10.1016/j.jvolgeores.2004.11.005

N. Villeneuve, Apports multi-sources a ` une meilleure compréhension de la mise en place des coulées de lave et des risques associés au Piton de la Fournaise: Géomorphologie quantitative en terrain volcanique, 2000.

G. P. Walker, Three Hawaiian calderas: An origin through loading by shallow intrusions?, Journal of Geophysical Research: Solid Earth, vol.1350, issue.B12, pp.773-14784, 1988.
DOI : 10.1029/JB093iB12p14773

T. R. Walter and V. R. , Experiments on rift zone evolution in unstable volcanic edifices, Journal of Volcanology and Geothermal Research, vol.127, issue.1-2, pp.107-120, 2003.
DOI : 10.1016/S0377-0273(03)00181-1

T. R. Walter, V. R. Troll, B. Cailleau, A. Belousov, H. Schmincke et al., Rift zone reorganization through flank instability in ocean island volcanoes: an example from Tenerife, Canary Islands, Bulletin of Volcanology, vol.127, issue.4, pp.281-29110, 2005.
DOI : 10.1007/s00445-004-0352-z

T. R. Walter, A. Klügel, and S. Münn, Gravitational spreading and formation of new rift zones on overlapping volcanoes, Terra Nova, vol.110, issue.47, pp.26-33, 2006.
DOI : 10.1130/G20472.1

À. , L. Michon, and F. Saint-ange, Laboratoire GéoSciences Réunion