GNGTS 2018 - 37° Convegno Nazionale

GNGTS 2018 S essione 2.1 335 possible to conduct a personal visual and auditory study of both farm and wild animals, whose behavior is always compared with the data of the monitored physical parameters. Thanks to the moderately seismic area it is then possible to compare with the data of the INGV seismic lists any anomalies that can be caused by nucleation phases of local earthquakes. Of the lists I consider those whose epicentrum is not more than 100 km from the Center. Among the animals particularly studied by me, there are the dogs, of which I have mainly analyzed both non-verbal communications, that is only behavioral and vocal ones, of which, as a musician, I identified in the barking some rhythmic and melodic sequences, which they take on semantic value, very useful for the study of seismic precursors. Thanks to the group dynamics that are established between dogs, especially if they live free in gardens or farms, it is possible to identify those vocal alarm sequences closely related to magnetic seismic precursors, while those that dogs give about 40” before earthquakes are linked to the extremely refined auditory perception of the waves p . The complex system of vocal communications and of body posture of dogs showed me the dog ability to relate communication with the concept of a volitional action or a project to be conjectured with the group (similarly to the wolves). This leads us to analyze the language of dogs with similar criteria to the structuralism of a semantic language. This analysis allows us to better understand what dogs tell us, in particular what they tell us when the earthquakes or hydro-geological destabilization are coming. The anomaly detection of some physical parameters. The study of possible seismic precursors implies a multi-parametric and possibly continuous monitoring in order to evaluate “in retrospect” the possible occurrences of anomalies preceding seismic events. So we can individuate any anomalies in short, medium or long periods, with mathematical criteria. In considering the behaviour of a variable, during the continuous monitoring of a historical series y (t) anomalous, we must observe the mean values in day, night, monthly, and seasonal time intervals, so as to be able to identify the “normal” behaviours of the considered parameter. So we can made groupings, classifications, to be able to identify punctual, contextual, and possibly collective anomalies [7],[8]. Western Piedmont is an area with a variable magnetic variation from point to point, if we observe the geographical magnetic INGV map of the image 1, we can see a similarity with the area surrounding the volcano Etna and Catania (in Sicily, Italy) and to that in front of the volcano Vesuvius, near Naples. In figure 1 we can see the Italian magnetic declination, from INGV map, “Roma Cartografia” This characteristic of the point-by-point variation of the magnetic declination in the western Piedmont area makes it interesting to monitor this parameter, to verify whether or not the anomalies referred to it can be considered precursors of local earthquakes and if so, for what conditions depth of hypocenters, or magnitude ML or repetitiveness of earthquakes in swarm with areas of epicentres almost overlapping. These considerations must be added that dogs are extremely sensitive to changes in magnetic declination, as recently demonstrated by some researchers as Hart V., Nováková P., Malkemper E.[9].In the presence of such anomalies, dogs bark with specific sound frequencies and with distinguishable rhythmic characterization, which I have analyzed in another article, which is being published by OJER. Magnetic declination monitoring takes place with a military compass that has a sensitivity of 0.5 arc minutes, is left in the internal area of the Center, far from ferromagnetic elements and the data retrieval mode is as follows: - 2 time/day for 1/2 h every time, in the period 1998-2013; - continuous monitoring for half an hour at the time of the vocal sequences of dog alarms in the period 2014-2018; 1 time/hour since June, 15, 2018 with continuous monitoring for half an hour at the time of the vocal sequences of dog alarms. I have identified three pre-seismic moments, or phases , according to the following scheme, in table n. 1, each of which presents recurring characteristics for the unusual behaviours of dogs.