A magnitude 4.7 earthquake struck the Campi Flegrei area near Naples at 7:46 p.m. local time, injuring 21 people and triggering rockfalls and building collapses across the zone.
Italy’s Civil Protection Department confirmed that 19 people sustained minor injuries and two were in serious condition. Collapses in uninhabited buildings and rockfalls caused additional property damage.
The National Institute of Geophysics and Volcanology placed the epicenter five kilometers from Pozzuoli at a depth of three kilometers. Dozens of aftershocks were recorded throughout the night.
Authorities cut electricity in several districts as a precaution and suspended train and metro services. Ferry connections from the port of Pozzuoli to the islands of Ischia and Procida were also canceled.
The tremor is among the strongest to hit the region in recent decades. Previous significant quakes struck on March 12 and June 30, 2025, the latter reaching magnitude 4.6.
The deadliest earthquake in the area in recent memory was a magnitude 6.9 tremor that struck Irpinia in southern Italy in November 1980, killing about 2,700 people and devastating hundreds of villages.
Campi Flegrei is a volcanic caldera containing around 20 craters, many of them underwater, sitting alongside Mount Vesuvius in the Gulf of Naples. Half a million people live in the zone, which is experiencing bradyseism, a process in which accumulated gas and magma push the ground level upward.
Official reports said the seismic activity does not indicate an imminent volcanic eruption but requires continued monitoring. Experts are continuing to gather data on ground movement, seismic activity, and other parameters linked to the Campi Flegrei volcanic system.
