Impact on Naples and Surrounding Areas

The tremor was strongly felt across Naples, particularly in the western neighborhoods (Fuorigrotta, Bagnoli, Pianura, Vomero) and in Phlegraean Fields municipalities such as Pozzuoli, Quarto, and Bacoli.
Several schools were evacuated during the high school final oral exams. At Righi High School in Fuorigrotta, exams were interrupted and students, teachers, and staff had to leave the buildings.

Cause: Bradyseism in Campi Flegrei

Experts link the quake to bradyseism, a phenomenon caused by the rising and pressurization of magma and gas in the volcanic caldera of Campi Flegrei.
The Vesuvius Observatory recorded the shock clearly on its Solfatara seismograph.

Seismic & Ground Uplift Activity

Between June 16–22, 2025, the area registered 58 seismic events, 18 of which were above magnitude 1.0. The strongest before today was 3.2.
Since February 2025, ground uplift accelerated to 30 mm/month, then slowed to about 15 mm/month from April onward.
Since 2006 (when bradyseismic activity resumed), the ground has risen by 1.5 meters in total.

Volcanic Risk and Warnings

Volcanologist Giuseppe De Natale, former director of the Vesuvius Observatory, stressed the urgent need for relocation plans for the most exposed populations.
The Campi Flegrei caldera is among the most closely monitored volcanic areas in Europe. Experts warn that preventive evacuation measures and structured emergency plans are crucial.

Guidance for Citizens

Authorities urge residents to:

Rely only on official sources (INGV, Civil Protection, local authorities).
Follow civil defense guidance in case of further shocks.

⚠️ This earthquake highlights the increasing instability of the Phlegraean Fields. While it is not an eruption, the ongoing bradyseism and seismic activity require constant vigilance.

Do you want me to also check official Civil Protection alerts issued today for Campi Flegrei (possible evacuation or emergency updates)?