The earthquake occurred this morning off the coast of Ravenna has no connection with the violent shock of 20 and 29 May 2012. The quake was generated by a different fault, although the geological structure in question is the same. He explained the official room seismic National Institute of Geophysics and Volcanology (INGV), Francesco Mele. Even this earthquake, with a magnitude of 4.5 and occurred at sea, it is related to the activity of the northern edge of the Apennines, buried under the Po Valley. "It 'was created - said the seismologist - from the structure of Malalbergo-Ravenna, which is the extremity' more 'eastern arc of Ferrara", ie the geological origin of earthquakes in recent weeks in Ferrara and Modena.