Updates from the Campi Flegrei, where in the early hours of March 13, 2025 there was a shock of magnitude 4.4. There is an ongoing seismic swarm.
On the night of March 13, 2025, at 01:25 Italian time, a Magnitude earthquake 4.4 he shook the area of Campi Flegreiwith an epicenter between Pozzuoli and the Neapolitan neighborhood of Bagnoli. The event, which caused material damage, including the collapse of a false ceiling that caused the injury of a person, is the most intense since the area is monitored by seismographers.
This earthquake is part of a context of growing seismic activity in the area. In February 2025, 1,813 earthquakes were recorded in the Campi Flegrei area, with a maximum magnitude of 3.9. Of these 85% had a magnitude less than 1.0 or not determinable, 12% between 1.0 and 1.9, 2% between 2.0 and 2.9 and 1% between 3.0 and 3.9. Most seismic events were located between Pozzuoli, Agnano, the Solfatara-Pisciarelli area, Bagnoli and in the Gulf of Pozzuoli, With depth concentrated in the first 3 km and a maximum of about 4 km.
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Parallel has been observed A soil lifting phenomenon in the area of maximum deformation. From August 2024, the average speed of lifting was about 10 ± 3 mm per month at the GNSS station in Rite. During the seismic swarm of 15-19 February 2025, it was recorded A maximum lifting of about 1 cm At the stations in the area of maximum deformation, with rapidly decreases, moving away from the center of the Caldera. In the last 15 days, the data highlight a recovery of the soil liftingwith a preliminary average speed of about 15 ± 5 mm per month. The total lifting recorded at Rite’s GNSS station is About 140 cm from November 2005, of which about 22 cm from January 2024.
Despite the intensification of seismic activity, geochemical parameters, such as surface temperatures in the areas of Pisciarelli and Solfatara, show stable trends. However, the flow of CO₂ from the ground in the Solfatara area remains high, estimated at about 5,000 tons per day, values comparable to those found in active volcanoes with persistent dejugation.
The authorities reiterate the importance that the population remains informed through official sources and follow the indications of the competent authorities to guarantee collective safety.
