The earth trembles again Phlegrean Fields. The seismographs ofVesuvius Observatory they recorded for hours 20.53 earthquake from of magnitude 2.3 with epicenter a Pozzuoli in the Solfatara Variant area at a depth of 2.4 kilometers. The earthquake was felt by the population in Quarto, Pozzuoli, Arco Felice and Lucrino.