Among the challenges in assessing medium and high-enthalpy geothermal resources in magmatic intraplate regions is the identification and characterization of faults and their complex processes. These studies require approaches and the integration of various disciplines. The NW of the Iberian Peninsula is an intraplate area with one of the highest geothermal potentials in the Iberian Peninsula (temperature >76 ºC). Recent studies have suggested that swarm-type seismicity in this area is due to the migration of deep fluids at high pressure and temperature. Currently, there is limited knowledge regarding the faults and/or structures that enable and control fluid ascent and natural seismic processes. In the multidisciplinary FACTER project (PID2022-139527OB-I00), funded by the Spanish Government (MCIN/ AEI/10.13039/501100011033), thermal systems in the northwestern peninsula are under investigation to develop a conceptual model and the minimum guidelines for locating and managing this energy resource.