Seismo-acoustic array monitoring of large quarry drill and blast activity close to a natural park, Tuscany (Italy)

In the Campiglia area (Southern Tuscany – Italy) a large quarry district is active near inhabited areas and a Natural Regional Park. Specific attention is given to an ancient castle (Rocca San Silvestro), frequently visited by tourists, positioned at close distance from the quarries (<1000 m), both for the castle stability and for the visitors safety. Monitoring of seismo-acoustic waves was done with a seismo-acoustic array, that allowed to identify signals produced by mining activities from the back-ground signal. The infrasound array analysis provided in real-time the peak amplitude of seismic ground shaking and the excess pressure for blasting from all the quarries active in the area and located at distances ranging form 1000 to 4500 meters from the array, thus representing an efficient real-time monitoring tool for quarry districts