The 2026 edition will propose a balanced program combining overview and focused presentations, plenary and poster discussions, and hands-on practical sessions, building on the success of the first edition.

 

General Organization

 

- Plenary sessions: mornings and afternoons, with two overview talks (~45 min) and focused talks (~10 min), leaving ample time for questions and discussion.

- Poster sessions: each poster is briefly introduced in a plenary “lightning session,” followed by in-depth discussions that foster networking and scientific exchange. 

- Thematic seaside discussions: small group sessions on cross-cutting or specialized topics, held during the first hour of the afternoon.

- Practical tutorials: Wednesday afternoon is dedicated to coding or data analysis workshops on specific subjects.

- Scientific discussion and interactions between early career and experienced researchers: A scientific “speed dating” on the first day, significant time for informal discussions and poster sessions, actively promote questions from early-career researchers after each talk to encourage broad participation.

- Field trip: a geological excursion in the fossil subduction of the Cape Corsewill be organized after the school.

 

 

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The program aims to create an interactive and multidisciplinary environment, fostering knowledge sharing, networking, and training for young researchers, while maintaining high scientific standards and a collaborative, friendly atmosphere.

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Sessions

Subduction zone Dynamics: from Geodynamic to Short Term models and observations

Keywords: geodynamic modeling, 

What parameters (force balance, mantle flow, temperature, density, rheology...) control the dynamics of the subduction zone? Under what conditions can a stable regime be reached? What are the effects of a perturbation (shallow/deep earthquake, pore pressure / density change…) on the dynamics of the subduction? How do the changes in the subduction dynamics affect the mechanical coupling along the plate interface, and the loading of the megathrust?

This session aims at bridging the gap between long-term (Million years) geodynamic models and short-term geophysical observations and models. The geodynamic models aim at assessing what are the forces driving the subduction, while the short-term models of the seismic cycle coupled with geodetic and seismological observations (such as focal mechanisms of intraslab earthquakes for example) can highlight changes in the stress state of the subduction system. The objective of this session is to discuss if the community can converge towards a better understanding of the dynamics of the subduction system and how it reacts to transient changes in boundary conditions, such as stress changes generated by an earthquake sequence for example.

 

What's down there? Observations from geology and geophysics

What are the main structural and geophysical features of the subduction? Variability of structures, slip modes and earthquakes characteristics on world-wide subduction zones? How does the structure of the down-going plate, the roughness of the subduction interface promotes or hinders slow/fast slip? What do geological observations of fossil earthquakes (slow or fast) or fluid transportation tell us about the processes at stake, their size and kinetics? Any changes in seismic velocities or gravity with time?

This session aims at comparing and reconciling geological observations of fossil subduction zones (such as the one in Cape Corse that will shall visit before the school starts in Cargese) and geophysical observations made by geodesy or seismology. These different observations have also lead to different models of the plate interface, typically rate-and-state models were derived from geophysical models while shear of a heterogeneous matrix have been derived from the geological observation. This session aims at fostering discussions between the two communities, that may lead to potential collaborations.

 

The subduction seismic (super-) cycle

What interseismic loading between large ruptures? Is interseismic loading transient? How long does the post-seismic relaxation last, and what are the key parameters to be taken into account in the models? Can we extend the spatial and temporal ranges of observation of the earthquake cycle?

This session aims at considering the seismic cycle of subduction zones at different time scales, from a few seconds/minutes that are typical for the seismic rupture to millenars that include several cycles and can be constrained by e.g. geomorphological observations. Presentations of models of the seismic cycles will also be invited, in order to put these imbricated time scales into a conceptual framework. 

 

Slow to fast earthquakes

What have we learned from the study of great megathrust earthquakes and from two decades of slow slip observation? Slow slip and earthquakes: different processes or continuum? Spatial and temporal link between slow slip and regular earthquakes? What is the interplay between slow slip and microseismicity ?

This session aims at discussing the different slip modes on the subduction interface (slow slip, seismic rupture, tremors, low-frequency earthquakes), to understand their potential interactions and provide insight about their mechanims.