Major terrestrial hazards are associated with the generation of fractures that evolve with time and finely lead to total structural collapse. Fracture singles emitted in response to stress accumulation and subsequent its release, if properly understood, provide sound background for the development of Early Warning Systems (EWSs). Different attempts have been made in the past for the proper understanding of such signals, but in this study Nanoseismic Monitoring (NM) is being discussed, in term of its sensors employment and signal processing methods. NM is a method dedicated to the detection and location of very low seismic energies (ML < 1) at short distances (< 10 km). Data are acquired by small aperture (max 200m) seismic arrays are easy to install and consists of one central three component (3C) sensor surrounded by three vertical one component (1C) sensors in a tripartite layout and which are suited for beam processing. Detection and location of weak events (ML < 1) are done by dedicated software: the NanoseismicSuite, was developed at Stuttgart University Germany. Seismograms are processed in the form of sonograms (i.e. spectrograms with a frequencydependent noise adaptation). Sonograms enhance the display of weak signal energy down to the noise threshold and allow for supervised pattern recognition of weak target events in the frequency domain. Locations of weak events are supported by a graphical jackknifing approach. Case studies on dynamics of unstable material in Europe have shown that NM successfully detects various weak fracture signals induced by the LS dynamic and structural health, hydraulic fracturing, erosional features and stress relief mechanism associated with material deformation.