Network of 35 broadband stations, installed over the whole Massif Central in addition to the permanent stations. Objectives: seismic tomography of crustal and mantle structures, and detection of small magnitude events (earthquakes, possibly tremors, etc.). Funding ANR AAP2022 BQR ISTerre. French component of the European initiative AdriaArray, the data (distributed by RESIF) will be immediately open (no embargo period).