Observations of Electromagnetic Radiation in the Central Apennines Seismic Region

In recent years, continuous radio-noise recording is in use at many geophysical observatories, in order to detect possible earthquake precursors and/or coseismic signals. The recordings obtained indicate that electromagnetic radiation (e.g., in the range of 10-40 kH) can indeed be treated as seismic precursor. We present here the examples of successful prediction observation, which we have obtained in the Central Apennines region at the l'Aquila Observatory (Polish-Italian cooperation).
A short discussion on relation between the evolution of stresses (dislocation dynamics) and electromagnetic emission supplements this paper.