The main difference between last century's bradyseismic crisis and the current one is in the improved technological ability to use dense multiparameter monitoring networks with high sensitivity and reliability and to follow the development of the phenomenon in real or near-real time.

The monitoring and surveillance activities of the Phlegraean Fields are provided by the National Institute of Geophysics and Volcanology - Vesuvius Observatory (INGV-OV) through a network of instruments intended for the analysis of seismicity, ground deformation, and physicochemical characteristics of gases, which together allow to define and evaluate the state of activity of the volcano. Monitoring through multiparameter instrumental networks, also implemented thanks to the economic contribution of the Campania Region, is integrated with periodic field measurement campaigns and laboratory analyses, which provide a comprehensive overview of volcanic dynamics. Details and updates on monitoring activities are available on the INGV-OV website.

The National Research Council's Institute for Electromagnetic Sensing of the Environment (CNR-IREA) also contributes to ground deformation monitoring through satellite radar interferometry analyses.