CE49 - Planétologie, structure et histoire de la Terre

Modelling the phYsical and chemical Gradients of hydrothermal ALteration for warning systems of flank collapse at Explosive volcanoes – MYGALE

Submission summary

Flank collapse represents a significant volcanic hazard. Hydrothermal alteration is considered to promote volcano instability, but there are few data and models to robustly assess this hypothesis. MYGALE is a multidisciplinary and collaborative project that will combine laboratory measurements, geophysical techniques, and modelling to assess the role of alteration on the stability of La Soufrière de Guadeloupe (France). Time-lapse field geophysical measurements will map the extent and evolution of alteration, experiments will provide physical property data for altered rocks and timescales of alteration, and large-scale 4D numerical modelling will assess the influence of alteration on volcano stability by combing the geophysical and laboratory data. Working closely with the volcano observatory in Guadeloupe, MYGALE aims at designing optimised monitoring networks to better mitigate volcanic hazards. The results of MYGALE will be applicable for hazardous volcanoes worldwide.

Project coordination

Michael HEAP (Institut Terre Environnement Strasbourg)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.


ITES Institut Terre Environnement Strasbourg
IPGP Institut de physique du globe de Paris
ISTO Institut des sciences de la Terre d'Orléans

Help of the ANR 673,343 euros
Beginning and duration of the scientific project: January 2022 - 48 Months

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