SOUFRIÈRE50: 50 years of volcano science advances fostering resilient futures
Elaborating synergies between science, risk mitigation, and society towards a shared understanding of sustainable living around volcanic activity
Saint-Claude, Basse-Terre (Guadeloupe)
5-11 Jul 2026
| 9:00 - 20:30 | Arrival transfer airports-hotels |
| 7:00 - 7:30 | Bus to conference |
| 7:30 - 8:00 | Breakfast + onsite registration Espace universitaire |
| 9:00 - 9:05 | Opening Ceremony - Carole Berthod, Directrice et responsable scientifique, Observatoire volcanologique et sismologique de Guadeloupe, IPGP.
Amphitheater Gerty Archimède |
| 9:05 - 9:10 | Opening Ceremony - Marc Chaussidon, Directeur de l'Institut de physique du globe de Paris (2016-2026)
Amphitheater Gerty Archimède |
| 9:15 - 9:20 | Opening Ceremony - Jean-Philippe Avouac, Directeur de l'Institut de physique du globe de Paris
Amphitheater Gerty Archimède |
| 9:20 - 9:25 | Opening Ceremony - France Lagroix, Directrice adjointe scientifique en charge du domaine Terre Solide, Institut national des sciences de l'Univers, CNRS
Amphitheater Gerty Archimède |
| 9:30 - 9:35 | Opening Ceremony - Mr le Président de l'Université des Antilles
Amphitheater Gerty Archimède |
| 9:35 - 9:40 | Opening Ceremony - Mr le Président du Département de la Guadeloupe ou son/sa représentant.e
Amphitheater Gerty Archimède |
| 9:45 - 9:50 | Opening Ceremony - Mr le Maire de Saint-Claude.
Amphitheater Gerty Archimède |
| 9:50 - 9:55 | Opening Ceremony - Mr le Préfet ou son représentant Mr le Directeur de Cabinet
Amphitheater Gerty Archimède |
| 10:00 - 10:30 | Coffee break |
| 10:30 - 10:45 | Tribute to Michel Feuillard [1932-2013], former director, Observatoire volcanologique de la Soufrière, 1961-1997 - François Beauducel, Jean-Christophe Komorowski et Christian Anténor-Habazac
Amphitheater Gerty Archimède |
| 10:45 - 12:15 | La Soufrière de Guadeloupe 1976-1977 eruption : introduction, summary of events, and analysis Amphitheater Gerty Archimède |
| 10:45 - 11:15 | Soufrière 1976 : rappel des faits, de la controverse scientifique à la polémique médiatisée - François Beauducel, Institut de physique du globe de Paris |
| 11:15 - 11:45 | La Soufrière 1976-1977 eruption: a reinterpretation of phenomena and processes in light of 50 years of advances in volcanological knowledge - Jean-Christophe Komorowski, Institut de Physique du Globe de Paris |
| 11:45 - 12:15 | La Soufriere 1976-1977 eruptive crisis: overview of the possible source mechanism(s) from on-site and multidisciplinary observations - Patrick ALLARD, CNRS, Institut de physique du globe de Paris |
| 12:15 - 14:00 | Lunch Centre culturel Edouard CORADIN (Saint-Claude). |
| 14:00 - 16:00 | Theme 1: Advances in understanding phreatic eruptions Amphitheater Gerty Archimède |
| 14:00 - 14:45 | Phreatic eruptions: causes, triggers, and precursory signals - John Stix, Earth and Planetary Sciences Department [McGill University] |
| 14:45 - 15:00 | Constraining the process of the 1976 eruption at La Soufrière Volcano, Guadeloupe, based on tephra stratigraphy and hydrothermal minerals - Fukashi Maeno, Earthquake Research Institute [Tokyo] |
| 15:00 - 15:15 | An analysis of expert ash particle classification versus Machine Learning from the 2024 Copahue volcano (Argentina/Chile) eruption. - Micaela CASTELLANI, Institut de Physique du Globe de Paris |
| 15:15 - 15:30 | Monitoring of fumarole fluxes at la Soufrière de Guadeloupe - David Jessop, Laboratoire Magmas et Volcans, Observatoire de Physique du Globe de Clermont-Ferrand, Institut de Physique du Globe de Paris |
| 15:45 - 16:15 | Coffee break Espace universitaire |
| 16:15 - 18:30 | Panel discussion Espace universitaire |
| 16:15 - 18:30 | Round table discussion 1 : Key Witnesses of the 1976–1977 eruption of La Soufrière in Guadeloupe: Memories of the past to live better in the Present and the Future - Pierre-Yves Clausse, Institut de Physique du Globe de Paris - Amandine Ascensio, Journaliste, correspondante Le Monde, AFP, Guadeloupe |
| 19:00 - 20:30 | Opening dinner Centre culturel Edouard CORADIN (Saint-Claude). |
| 20:30 - 21:00 | Bus transfer |
| 7:00 - 7:30 | Bus to conference |
| 7:30 - 8:00 | Breakfast + onsite registration Espace universitaire |
| 8:15 - 12:00 | Theme 1: Advances in understanding phreatic eruptions Espace universitaire |
| 08:15 - 08:35 | Linking evolving volcano morphology to the architecture of magmatic and hydrothermal systems - Eleonora Rivalta, GeoForschungsZentrum Potsdam, Department of Physics and Astronomy, University of Bologna |
| 08:35 - 08:50 | Eruptive dynamics and hydrothermal instability at Vulcano Island (Italy): from long-term evolution to the 2021–ongoing unrest - Federico Di Traglia, Istituto Nazionale di Geofisica e Vulcanologia - Sezione Osservatorio Vesuviano |
| 08:50 - 09:05 | 3D numerical simulations of hydrothermal fluids pathways below calderas - Agnese Spina, Universita di Bologna, Italy |
| 09:05 - 09:20 | From pores to pressure: micro-CT insights into hydrothermal unrest and phreatic eruptions - Alessia Falasconi, Istituto Nazionale di Geofisica e Vulcanologia - Sezione Osservatorio Vesuviano |
| 09:20 - 09:35 | Experimental and numerical thermo-kinetic modelling of hydrothermal alteration of volcanic rocks from La Soufrière de Guadeloupe (Eastern Caribbean, France) - François Décossin, Université d'Orléans, CNRS, BRGM, ISTO, UMR 7327, F-45071, Orléans, France. |
| 09:35 - 09:50 | Imagerie, caractérisation et surveillance de la plomberie magmatique par l'utilisation conjointe de la magnetotellurique et de la pétrophysique expérimentale. - Benjamin François, BRGM Orléans |
| 10:00 - 10:30 | Coffee break Espace universitaire |
| 10:30 - 12:00 | Theme 1: Advances in understanding phreatic eruptions Amphitheater Gerty Archimède |
| 10:30 - 10:45 | Multivariate Temporal Analysis of Muography Data at La Soufrière de Guadeloupe Volcano - Matías Tramontini, Institut de Physique des 2 Infinis de Lyon |
| 10:45 - 11:00 | On the Potential of InSAR Monitoring of the Soufriere - Essam Heggy, Institut de physique du globe de Paris |
| 11:00 - 11:15 | Real-time magma flux quantization from GNSS as a tool for anticipating eruptions - François Beauducel, OVPF-IPGP |
| 11:15 - 11:30 | A review of phreatic non-magmatic eruptions at La Soufriere de Guadeloupe: processes, deposits and hazard assessment - Jean-Christophe Komorowski, Institut de Physique du Globe de Paris |
| 12:00 - 14:00 | Lunch Centre culturel Edouard CORADIN (Saint-Claude). |
| 14:00 - 16:05 | Theme 2: Volcanic activity in the Caribbean and similar volcanic settings Espace universitaire |
| 14:00 - 14:45 | Volcanic unrest, eruptions and resilience in the Eastern Caribbean - Richard Robertson, The UWI Seismic Research Centre |
| 14:45 - 15:00 | The Soufrière Hills Volcano: A Volcano in a State of Persistent Unrest - Graham Ryan, Montserrat Volcano Observatory, Seismic Research Centre, The University of the West Indies, St. Augustine |
| 15:00 - 15:15 | Ongoing unrest at Mont Pelée volcano (Martinique) - Jérome Vergne, Observatoire volcanologique et sismologique de martinique, Institut de Physique du Globe de Paris |
| 15:15 - 15:35 | Almost a decade of KNMI multi-parameter monitoring on Saba and St. Eustatius, Caribbean Netherlands - Elske Van Dalfsen, Royal Netherlands Meteorological Institute |
| 15:35 - 15:50 | Marine records reveal multiple phases of Toba's last volcanic activity. - Benoit Caron, Institut des Sciences de la Terre de Paris |
| 15:50 - 16:05 | DashVolcano: A quantitative framework for exploring relationships between volcanic systems at the global scale - Kévin Migadel, Institut de Physique du Globe de Paris |
| 16:05 - 16:35 | Coffee break Espace universitaire |
| 16:35 - 18:30 | Panel discussion |
| 16:35 - 18:30 | Round Table 2. Erupting Soufrières: What Lessons Can Be Learned from the Eruptions of La Soufrière in Guadeloupe (1976–1977), Soufrière Hills in Montserrat (1995–present) and La Soufrière in Saint Vincent (1970–1972, 1979, 2020–2021) for responding to a future eruption and reducing risks - Pierre-Yves Clausse, Institut de Physique du Globe de Paris - Amandine Ascensio, Journaliste, correspondante Le Monde, AFP, Guadeloupe |
| 19:00 - 20:30 | Onsite dinner Centre culturel Edouard CORADIN (Saint-Claude). |
| 20:30 - 21:00 | Bus transfer |
| 7:00 - 7:30 | Bus to conference |
| 7:30 - 8:00 | Breakfast and onsite registration Espace universitaire |
| 8:15 - 9:15 | Theme 2: Volcanic activity in the Caribbean and similar volcanic settings Amphitheater Gerty Archimède |
| 08:15 - 08:30 | Lacustrine tephrochronology of the Grande Découverte–Soufrière volcanic complex (Guadeloupe, Lesser Antilles): records from Lake Flammarion - Marie Tallon, Environnements, Dynamiques et Territoires de Montagne (EDYTEM) |
| 08:30 - 08:45 | Petrological constraints on the plumbing system and processes that led to 1530 cal. CE Sub-Plinian eruption at La Soufrière de Guadeloupe - Zoé Turpin, Institut de Physique du Globe de Paris |
| 08:45 - 09:00 | From quiescence to ongoing activity: 35 years of unrest at La Soufrière de Guadeloupe - Carole Berthod, Institut de Physique du Globe de Paris, Observatoire Volcanologique et Sismologique de Guadeloupe |
| 09:00 - 09:15 | Geochemical, thermal and field evidence for a major evolution of the hydrothermal system of La Soufriere de Guadeloupe between 2021 and 2023 - Ivan Vlastelic, Laboratoire Magmas et Volcans |
| 9:15 - 10:00 | Theme 3: Managing risk and uncertainty Amphitheater Gerty Archimède |
| 09:15 - 10:00 | Ten years of hazard and risk assessments for Soufrière Hills Volcano, Montserrat during an extended pause in eruption - Eliza Calder, University of Edinburgh |
| 10:00 - 10:30 | Coffee break Espace universitaire |
| 10:30 - 12:30 | Theme 3: Managing risk and uncertainty Amphitheater Gerty Archimède |
| 10:30 - 10:45 | Enhancing Community Awareness of Volcanic Risk through Citizen Science: The INGV–Osservatorio Vesuviano Web Form Experience - Rosa Nappi, Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Napoli Osservatorio Vesuviano |
| 10:45 - 11:05 | The 2021 eruption in La Palma island, Canary Islands, Spain: Volcano monitoring, eruptive processes and crisis management. The tale of an urban eruption. - Stavros Meletlidis, Instituto Geografico Nacional |
| 11:05 - 11:20 | Modelling and numerical simulation of phreatic eruption scenarios at La Soufrière de Guadeloupe - Silvia Giansante, Istituto Nazionale di Geofisica e Vulcanologia, sezione di Pisa, Italy |
| 11:20 - 11:35 | Mapping volcanic hazards at La Soufrière volcano in Guadeloupe: an integrated approach to better understanding volcanic risks - Yoann Legendre, Bureau de Recherches Géologiques et Minières |
| 11:35 - 11:50 | Landslide potentially generated tsunamis in volcanic context: application to hazard assessment in Lesser Antilles and Mayotte using analog experiment and numerical simulation - Anne Le Friant, Institut de Physique du Globe de Paris |
| 11:50 - 12:10 | The current state of knowledge on the eruptive past of La Soufrière de Guadeloupe: implications for civil protection crisis response plans - Jean-Christophe Komorowski, Institut de Physique du Globe de Paris |
| 12:15 - 13:30 | Lunch Centre culturel Edouard CORADIN (Saint-Claude). |
| 13:30 - 14:00 | Bus transfer |
| 14:00 - 15:30 | Volcano observatory visite (OVSG-IPGP) |
| 15:30 - 16:00 | Bus transfer |
| 16:00 - 17:00 | Free time at Fort Delgrès |
| 17:00 - 22:00 | Dinner and commemoration of 8 July 1976 Fort Delgrès |
| 22:00 - 22:30 | Bus transfer |
| 7:00 - 7:30 | Bus to conference |
| 7:30 - 8:00 | Breakfast Espace universitaire |
| 8:00 - 15:00 | Free time for people not attending an excursion |
| 8:00 - 15:00 | Field excursions |
| 17:00 - 18:00 | Panel discussion - EPOS. EPOS-FRANCE is a national research infrastructure (RI) that coordinates solid Earth observation activities, using modern instrumentation to measure deformations of the Earth’s surface — Presentation by Philippe Labazuy
Amphitheater Gerty Archimède |
| 19:00 - 20:30 | Onsite dinner Centre culturel Edouard CORADIN (Saint-Claude). |
| 20:30 - 21:00 | Bus transfer |
| 7:00 - 7:30 | Bus transfer |
| 7:30 - 8:00 | Breakfast and onsite inscriptions Espace universitaire |
| 8:15 - 10:15 | Theme 4: Living near active volcanoes Amphitheater Gerty Archimède |
| 08:15 - 09:00 | Through the looking glass: the eruption we have in mind - Micol Todesco, Istituto Nazionale di Geofisica e Vulcanologia - Sezione di Bologna |
| 09:00 - 09:15 | Residents, tourists, and volcanic crises: characterising multi-hazard risk awareness on Stromboli Island (Aeolian Islands UNESCO site, Italy) during the 2019 eruptive crisis - Agnese Turchi, University of Naples Federico II, PLINIVS-LUPT Study Centre |
| 09:15 - 09:30 | Living with an Active Volcano: La Soufrière of Guadeloupe as a Living Laboratory for Human–Volcano Coexistence - Harry OZIER-LAFONTAINE, Parc national de la Guadeloupe |
| 09:30 - 09:45 | Raconter la catastrophe : enjeux et tensions d'un musée-mémorial - Marie Hardy, Musée Frank A. Perret – Mémorial de la catastrophe de 1902 |
| 09:45 - 10:05 | Caractériser des ressources géothermales en Basse-Terre, une nécessité de connaissances géologiques, un potentiel de developpement géopatrimonial, un besoin de formation en géosciences localement - Jean-Frédéric Lebrun, UMR Géosciences Montpellier |
| 10:15 - 10:45 | Coffee break Espace universitaire |
| 10:45 - 12:30 | Theme 4: Living near active volcanoes Amphitheater Gerty Archimède |
| 10:45 - 11:05 | The hidden chemistry of Guadeloupe's volcanic river waters / La chimie cachée des eaux de rivière volcaniques de Guadeloupe - Céline Dessert, Institut de Physique du Globe de Paris, Observatoire de l'Eau et de l'Erosion aux Antilles (ObsERA) |
| 11:05 - 11:20 | Spatio-temporal mapping of volcanic gas emissions and assesment of health risks at the summit of La Soufrière in Guadeloupe (2017-2025). - Alexandra CAUMONT, Laboratoire Magmas et Volcans |
| 11:20 - 11:35 | Etude des effets biologiques aux gaz hydrothermaux dans un modèle cellulaire des bronches - Chloée Magales, iGReD, Equipe “Approche Translationnelle des Lésions Epithéliales et de leur réparation”, Université Clermont Auvergne, UMR6293 CNRS-U1103 INSERM, F-63000 Clermont-Ferrand, France. |
| 11:35 - 11:50 | L'influence des sols volcaniques de la Soufrière sur la culture de la canne à sucre et de la canne noire en Basse-Terre - Bologne Distillerie, Evandro Da Silva |
| 11:50 - 12:05 | Vivre à proximité des volcans actifs: rôle, actions et recommandations de l'Association Internationale de Volcanologie (IAVCEI) - Patrick Allard, IPGP, France, et ex-Président de la IAVCEI (2019-2023) |
| 12:05 - 12:20 | IRIVOLC project: Enhanced multi-hazard simulation and integrated response to a high impact low probability (HILP) volcanic crisis in Guadeloupe or Martinique - Jean-Christophe Komorowski - IPGP |
| 12:30 - 14:00 | Lunch Centre culturel Edouard CORADIN (Saint-Claude). |
| 14:00 - 15:30 | Posters Espace universitaire |
| 14:00 - 15:30 | From data to decisions under uncertainty: a scalable PLINIVS framework for seismic risk prioritisation during volcanic unrest in the Campi Flegrei caldera. - Agnese Turchi, University of Naples Federico II, PLINIVS-LUPT Study Centre |
| 14:00 - 15:30 | Geophysics-assisted imaging of shallow gas pockets and hydrothermal alteration at the summit of La Soufrière de Guadeloupe - David Jessop, Observatoire de Physique du Globe de Clermont-Ferrand, Laboratoire Magmas et Volcans, Institut de Physique du Globe de Paris |
| 14:00 - 15:30 | Occurrence of tsunamigenic flank collapses on the Mayotte submarine Horseshoe Volcanic Complex : insight from geology and numerical modelling. - Noélie Goasdoué, Institut de Physique du Globe de Paris |
| 14:00 - 15:30 | Radon emissions from La Soufrière de Guadeloupe and their role in volcanic monitoring - Luca Terray, Laboratoire de Physique de Clermont |
| 14:00 - 15:30 | Potential of in-situ gamma spectrometry for continuous monitoring of hydrothermal volcanic emissions - Valentin Rabant, Laboratoire de Physique de Clermont Auvergne |
| 14:00 - 15:30 | MYGALE: Modelling the phYsical and chemical Gradients of hydrothermal ALteration for warning systems of flank collapse at Explosive volcanoes - Caroline Martel, Institut des Sciences de la Terre d'Orléans, CNRS/INSU |
| 14:00 - 15:30 | OVSM-IPGP Instrumental Networks for Observation and Research - Arnaud Andrieu, Observatoire Volcanologique et Sismologique de la Martinique |
| 14:00 - 15:30 | “Jerk”, a successful and unequivocal new method for early warning of volcanic eruptions - François Beauducel, Institut de physique du globe de Paris |
| 14:00 - 15:30 | Prévention des risques naturels en Guadeloupe : déclinaison territoriale des politiques publiques françaises dans un contexte multi-aléas insulaire - Aude COMTE, DEAL - Julianne HARTER, DEAL |
| 14:00 - 15:30 | An overview of OVSG's instrumental networks - Sébastien Deroussi, Observatoire Volcanologique et Sismologique de la Guadeloupe - Institut de Physique du Globe de Paris |
| 14:00 - 15:30 | rinexmod & autorino: two tools for the acquisition and pre-processing of multi-GNSS data in near real time, orchestrated by Apache Airflow - Patrice BOISSIER, Institut de Physique du Globe de Paris |
| 14:00 - 15:30 | Geochemical monitoring of volcanic activity at La Soufrière de Guadeloupe - Elodie CHILIN-EUSEBE, Observatoire Volcanologique et Sismologique de Guadeloupe |
| 14:00 - 15:30 | Spatio-temporel evolution of La Soufrière de Guadeloupe hydrothermal system revealed by magnetic anomalies - lydie gailler, Laboratoire Magmas et Volcans - Philippe Labazuy, Laboratoire Magmas et Volcans |
| 14:00 - 15:30 | Cl/Br/I fractionation in volcanic fluids of La Soufrière of Guadeloupe: from magma degassing to gas plume and shallow hydrothermal systems - Benoit Caron, Institut des Sciences de la Terre de Paris |
| 14:00 - 15:30 | Cl and S in volcanic fluids of La Soufrière volcano: tracers of shallow magma intrusions and their further evolution (crystallization-degassing) - Benoit Caron, Institut des Sciences de la Terre de Paris |
| 15:30 - 16:00 | Coffee break Espace universitaire |
| 16:00 - 17:30 | Panel discussion Espace universitaire |
| 16:00 - 17:30 | Round Table 3. How to Respond to a Future Eruption of La Soufrière in Guadeloupe: Stakeholders, Roles, Missions, and Responsibilities—What Are Their Needs and Expectations? - Pierre-Yves Clausse, Institut de Physique du Globe de Paris - Amandine Ascensio, Journaliste, correspondante Le Monde, AFP, Guadeloupe |
| 17:30 - 18:30 | Closing ceremony - IPGP, CNRS, UA representatives
Amphitheater Gerty Archimède |
| 18:30 - 19:00 | Free time |
| 19:00 - 19:30 | Bus transfer |
| 19:30 - 20:30 | Closing dinner, Maison Coquille, Basse-Terre |
| 20:30 - 22:00 | VOUKOUM concert |
| 22:00 - 22:30 | Bus transfert |
| 7:00 - 22:00 | Departure: transfer hotel to airports |
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