The 3rd Rencontres Scientifiques et Techniques of Résif took place from 10 to 12 October 2017 in Saint-Jean-de-Monts, Vendée. More than one hundred participants, researchers, engineers, technicians and students shared experiences and know-how in a welcoming setting on the Atlantic coast. The results of these Meetings are globally positive: 22 oral presentations, 22 posters and 6 thematic workshops have animated the last 4 days of the conference in the scientific and technical fields of seismology, geodesy and gravimetry. The students Christine Masson (University of Montpellier) and Ugo Nanni (University of Grenoble Alpes) won the 2017 competition “The two best posters”. Thematic workshops were held to take stock of some of Résif’s specific and transversal actions, while others focused on the role that Résif could play in the observation and analysis of environmental changes, as well as on the awareness and education of citizens in the context of telluric risks.

Plenary Session 1

– The transverse action Seismicity of Résif – F. Masson, EOST – Strasbourg
– Massif-scale imaging by active and passive electromagnetic methods – J.F. Girard, EOST – Strasbourg

Plenary Session 2

– 20 years of seismology at school… and now? – J. Balestra, Géoazur – Valbonne
– Geothermal reservoirs as seen by geophysics – J. Schmittbuhl, EOST – Strasbourg
– Deformation of the upper mantle under the Pyrenean domain: study of the birefringence of SKS waves under the PyrOPE and IberArray gratings – M. Bonnin, LPG – Nantes
– Auscultation of sea dykes by passive seismics – M. Le Feuvre, IFSTTAR – Bouguenais
– Joint inversion of data on a volcanic edifice: gravity, seismology, magneto-tellurics – A. Barnoud, ISTerre – Grenoble
– The Pedernales earthquake (Mw 7.8, 2016) and the seismic super-cycles along the North-Andean Subduction – J.-M. Nocquet, Géozaur – Valbonne

Plenary Session 3

– New opportunities in geophysical instrumentation – J. Chéry, University of Montpellier
– GLImER – A global archive of receiver functions to characterize crustal and mantle structures – S. Rondenay, Department of Earth Sciences – Bergen
– Seismology and observational geodesy for the understanding of gravitational movements – J.P. Malet, EOST – Strasbourg
– Observations and modelling of elasto-gravity signals preceding direct seismic waves – M. Vallée, IPGP – Paris
– Homogenisation and full waveform inversion – Y. Capdeville, LPG – Nantes
– The seismic cycle and great subduction earthquakes in Chile – C. Vigny, ENS – Paris

Thematic Workshop 1

– Axe transverse Seismicity – F. Masson, EOST – Strasbourg
– Environmental Geophysics Transverse axis Seismicity – F. Masson, EOST – Strasbourg
– Building Resif’s Broadband Network – E. Beucler, OSUNA – Nantes et J. Vergne, EOST – Strasbourg

Plenary Session 4

– Seismology and seabed instrumentation – W. Crawfort, IPGP – Paris
– Deformation of the Earth by the hydrosphere: impact on seismicity – K. Chanard, IGN – Paris
– Exploring the potential of imaging a peri-urban geothermal site by using teleseismic receiver functions – A. Imtiaz, BRGM – Orléans
– Mineral Resources, Geology and Sustainable Development – O. Vidal, ISTerre – Grenoble
– Résif and Epos, why and how ? – H. Pedersen, ISTerre – Grenoble

Thematic Workshop 2

– Résif : Citizen science and education – J. Vergne, EOST – Strasbourg et J. Balestra, Géoazur – Valbonne
– Marine seismology and observation networks – W. Crawfort, IPGP – Paris et B. YAtes, Géoazur – Valbonne
– Resif’s information system – L. Stehly, ISTerre – Grenoble

Plenary Session 5

– Attenuation profile in the Moon: stresses on the structure of the Lunar Megaregolith – M. Calvet, OMP – Toulouse
– The movements of the Alps and the Pyrenees: geodetic observations and identification of the sources of deformation – P. Vernant, University of Montpellier
– Thirty-five years of seismicity in Central Italy seen by the INGV National Seismic Network – D. Latorre, INGV – Rome