In recent decades, a large number of laboratory tests and experimental observations have shown that acoustic, electromagnetic and neutron emissions are phenomena closely related to seismic activity. Through these tests it was demonstrated how, by subjecting brittle or quasi-brittle materials to mechanical stress, it is possible to observe ultrasonic acoustic emissions (AE), electromagnetic emissions (EME) and neutron emissions (NE) during the fracture process. These three forms of energy are called Fracto-emissions and, if analysed simultaneously in specific monitoring sites, can provide important information in terms of environmental protection against seismicity. Beside the Fracto-emissions, the temporal variation of the b-value, a statistical precursor deriving from the Gutenberg-Richter's law for the magnitude-frequency distribution, is proposed as a further parameter for seismic prevention.