Scientific response to the 2021–2022 seismic swarm in the Monts Dore volcanic province (France): structural insights from punctual surveys (1/2)
Year: 2025
Type: article
Abstract: Long-dormant volcanic provinces remain excellent proxies in studying active edifices. The Monts Dore volcanic province (French Massif Central) has been recently the site of a unique seismic episode. Geophysical surveys were conducted at different horizontal and vertical spatial scales. Magnetic anomalies highlight mechanical heterogeneities consistent with the regional tectonic context. Low-conductive structures imaged suggest the presence of fluid rising along main paths at various depths. Although we cannot strictly exclude a purely tectonic explanation, our data seem to support the origin of seismicity as being linked to the injection of fluids at depth controlled by internal structural constraints.
Source: Comptes Rendus Géoscience
DOI: 10.5802/crgeos.284
Authors: Lydie Gailler, Clément Grace, Guillaume Boudoire, Marc Grunberg, Jean Battaglia, Charley Merciecca, Philippe Labazuy, Thierry Souriot, Jean-Michel Douchain, Nicolas Cluzel, Romain Guillard, Valentin Fréret Lorgeril, Cyril Aumar, Victoria Rafflin, Vincent Boulenger, Solène Buvat, Jehoji Kuzamba, Erwan Thébault
Institutions: Centre National de la Recherche Scientifique, Université Clermont Auvergne, Laboratoire Magmas et Volcans, Institut de Recherche pour le Développement, INGV Sezione di Palermo, École & Observatoire des Sciences de la Terre, Université de Strasbourg, Observatoire de Physique du Globe de Clermont-Ferrand, Royal Holloway University of London
Language: English
Subfield: Geophysics
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4410097700