International audience
L'Action spécifique Sismologie Mobile Marine (AS SMM) Résif se met en place. Cette action va proposer aux chercheurs français un point d'entrée unqiue pour l'accès à l'éventail d'instruments adaptés à une recherche scientifique de qualité. L'AS SMM va mettre à disposition les données acquises par les instruments du parc et leurs métadonnées via...
Water transported by subducting slabs affects the dynamics of subduction zones and is a major gateway in the global geochemical water cycle. During subduction much of the water stored in the slab is released via pore fluid escape and through metamorphic reactions that depend on the thermal regime. The most notable are eclogitization of hydrated...
Exhumed subduction zones and geophysical imaging have shown that the seismogenic subduction interface is a deformed, 100m-1km thick tabular region. Within this region, we currently do not know if seismic slip is localized on a single fault or distributed over several active faults, and how this impacts seismogenesis and the timing and style of...
The 2016 Mw 7.8 Pedernales, Ecuador, earthquake rupture area was accompanied by aseismic slip at shallower depth such as slow earthquake and post-seismic slow slip. In addition, the relatively small forearc and shallow megathrust along the Ecuadorian margin makes it an exceptional natural laboratory to study the link between the ongoing...
In 2007 the Sismantilles II experiment was conducted to constrain structure and seismicity in the central Lesser Antilles subduction zone. The seismic refraction data recorded by a network of 27 OBSs over an area of 65 km × 95 km provide new insights on the crustal structure of the forearc offshore Martinique and Dominica islands. The...
L'action spécifique Sismologie Marine Mobile (SMM) a été créée au sein de Résif. Les 3 parcs OBS français se sont fédérés pour offrir une instrumentation marine de pointe pouvant répondre aux besoins des chercheurs. Le projet d'investissement d'avenir Marmor, financé par l'ANR (PIA3-ESR-Equipex+), permet l'achat et la jouvence d'instruments de...
Identifying the circulation of fluids in subduction zone system and understanding their role on the megathrust fault slip modes remains one of the outstanding challenges in Earth Sciences. As these faults have the capacity to generate mega-earthquakes, the associated hazard to the society is significant.In recent years, studies in Japan, Costa...
In 2007 the Sismantilles II experiment was conducted to constrain structure and seismicity in the central Lesser Antilles subduction zone. The seismic refraction data recorded by a network of 27 OBSs over an area of 65 km × 95 km provide new insights on the crustal structure of the forearc offshore Martinique and Dominica islands. The...
The Academy Space, Environment, Risks and Resilience focuses on natural, health and anthropogenic hazards and risks. Our goal is to better understand the complexity of the processes involved, characterize their diversity and interconnections, and define their social and environmental links. As such, ourobjective is to contribute to the...
This work focuses on the analysis of a unique set of seismological data recorded by two temporary networks of seismometers deployed onshore and offshore in the Central Lesser Antilles Island Arc from Martinique to Guadeloupe islands. During the whole recording period, extending from January to the end of August 2007, more than 1300 local...
Tectonophysics, v. 467, n. 1-4, p. 1-21, 2009. http://dx.doi.org/10.1016/j.tecto.2008.10.022
The Mw 8.8 1906 earthquake that occurred at the Ecuador-Colombia subduction zone is the 7th largest event ever recorded worldwide, and one of several large earthquakes that have affected the region since then.At its southern border, episodes of aseismic slip have been recorded at the shallow updip part of the subduction interplate fault, in the...
International audience
Based on manually analyzed waveforms recorded by the permanent Ecuadorian network and our large aftershock deployment installed after the Pedernales earthquake, we derive three- dimensional Vp and Vp/Vs structures and earthquake locations for central coastal Ecuador using local earthquake tomography. Images highlight the features in the...
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The Algerian continental margin in the western Mediterranean formed as a back-arc basin and is today reactivated by the convergence between the African and Eurasian plates. It is one of the very rare examples of passive margins undergoing inversion expressed in a moderate seismicity of the margin and is possibly giving way for future...
International audience
Marine noise pollution (MNP) can cause a multitude of impacts on many organisms, but information is often scattered and general outcomes difficult to assess. We have reviewed the literature on MNP impacts on Mediterranean fish and invertebrates. Both chronic and acute MNP produced by various human activities -e.g. maritime traffic, pile...
Marine noise pollution (MNP) can cause a multitude of impacts on many organisms, but information is often scattered and general outcomes difficult to assess. We have reviewed the literature on MNP impacts on Mediterranean fish and invertebrates. Both chronic and acute MNP produced by various human activities - e.g. maritime traffic, pile...