Abstract
The photo shows the construction of the seismological station BALS at Balsièges (Lozère). The location of the instrument cabinet and manholes can be seen. This station is operated by the Observatoire de Recherche Montpellierrain de l'Environnement (Oreme) and is part of Résif's Permanent Broadband Network (RLBP). It's a national research infrastructure dedicated to the observation and understanding of the structure and dynamics of the Inner Earth. Résif is based on high-tech observation networks, composed of seismological, geodetic and gravimetric instruments deployed in a dense manner throughout France. These data make it possible to study with high spatial and temporal resolution the deformation of the ground, surface and deep structures, seismicity on a local and global scale and natural hazards, and more particularly seismic hazards, on French territory. Résif is integrated into European (EPOS - European Plate Observing System) and global systems of instruments for imaging the Earth's interior as a whole and studying many natural phenomena.