The La Soufrière de Guadeloupe volcano is an archetype of hazardous andesitic volcanoes that occur in many subduction zones such as the Lesser Antilles Volcanic Arc. It is characterized by a great diversity of eruptive styles. Its lava dome was formed during the last major magmatic eruption in 1530 AD. Since 1635 AD, six non-magmatic phreatic or hydrothermal eruptions have occurred associated with ash and gas venting, small directed explosions, non-magmatic pyroclastic flows, collapse of parts of the dome and significant exurgence of hot acid hydrothermal fluids stored in shallow depth reservoirs within the edifice, and mud flows.
Extensive interdisciplinary research and monitoring programs spanning geological, geophysical, and geochemical approaches and techniques have focused on La Soufrière de Guadeloupe volcano and its hydrothermal system since the last eruption in 1976-1977. There is currently significant uncertainty as to whether the slowly increasing unrest recorded since 1992 will lead to the onset of hazardous eruptive activity linked to hydrothermal and/or magmatic processes for nearby communities. The large number of papers published in the last decade reflects a remarquable leap forward in the knowledge of La Soufrière of Guadeloupe and analog volcanoes (e.g. Soufrière Hills, Montserrat).
Given the large number of open questions and scientific challenges these advances have raised in the context of the current degassing unrest, the Institut de Physique du Globe de Paris aims to organize a prospective scientific workshop to discuss the current state of knowledge of La Soufrière of Guadeloupe volcano, its current activity, and the state of the art interdisciplinary science that could and must be developed in the near future to bridge the remaining epistemic gap. The ultimate goal of this workshop is to elaborate the basis for a draft of an ambitious research collaborative interdisciplinary proposal that could be submitted by the end of 2016 or beginning of 2017 to a variety of financing agencies and/or programs.
Workshop format : Keynote oral sessions, discussions sessions, final discussion, poster sessions
Équipe Systèmes Volcaniques (SV-IPGP)
Observatoire Volcanologique et Sismologique de Guadeloupe (OVSG-IPGP)
Observatoire Volcanologique et Sismologique de Martinique (OVSM-IPGP)