The submarine observatory system will include:

An electro-optical and optical fiber cable network of multiparameter fixed stations (geophysical, geochemical, environmental sensors) for continuous real-time 24/24 high-resolution secured data acquisition and transmission to the observatory on land. The submarine cable infrastructure comprises two main standard telecommunications cables, three primary nodes that provide power and communication from a shore station to key permanent monitoring multiparameter stations (geophysics and biology) and a specific fiber optic cable dedicated to distributed acoustic sensors (DAS) and optical sensors.

A network of autonomous multi-parameter monitoring stations. Instruments will include off-the-shelf sensors to measure key parameters: ground motion, variations in electromagnetic field, underwater sound, pressure, conductivity, salinity, dissolved oxygen, turbidity, current speed and direction.  

Mayotte multidisciplinary seafloor and water column observatory