A 4.6-magnitude earthquake struck the Campi Flegrei area near Naples at 12:47 p.m. on Monday, June 30, marking it the most powerful tremor in the area in the past 40 years. The epicentre was located in the Bacoli area, with a depth of 5 kilometres. The shock was clearly felt in central Naples, sending residents into the streets.
A second, weaker shock followed minutes later at 12:51 p.m., measuring magnitude 2.2.
The 4.6-magnitude earthquake equals the strength of a similar quake recorded on March 13 and forms part of an ongoing seismic swarm in the Gulf of Bacoli. The Municipality of Pozzuoli confirmed the swarm and warned that rumbling sounds may have accompanied the event in areas near the epicentre.
While no damage or injuries have been reported so far, authorities are continuing inspections and have urged residents to report any problems. Contact numbers have been made available for the local Civil Protection and Municipal Police.
As a precaution, train traffic at the Naples rail hub was suspended in line with safety protocols requiring halts after quakes stronger than magnitude 4.0. Long-distance trains from Rome to the south are operating normally, but local services remain disrupted. Line 2 of the Naples metro between Bagnoli and Pozzuoli has stopped, along with the Cumana and Circumflegrea commuter railways.
The Prefecture of Naples is expected to release further updates at a press briefing.
