Mild 2.9‑Magnitude Quake Strikes Campi Flegrei, Epicenter Only 2 km from Pozzuoli, Following Recent 3.6‑3.7 Tremors

Breaking: 2.9-Magnitude Earthquake Strikes Campi Flegrei Near Pozzuoli; No Casualties Reported

Breaking news from the Naples region: A magnitude 2.9 earthquake was recorded at 3:30 a.m. local time in the Campi Flegrei area, according to the National Institute of Geophysics and Volcanology (INGV).

The quake had a hypocenter about 3 kilometers beneath the surface, with the epicenter roughly 2 kilometers from Pozzuoli.There were no reports of injuries or damage.

Three days earlier, the same area was hit by two tremors, registering magnitudes of 3.6 and 3.7.

Key Facts

Parameter	details
Magnitude	2.9
Time	3:30 a.m.local time
depth (hypocenter)	About 3 km
Epicenter	approximately 2 km from Pozzuoli
Location	Campi Flegrei, Naples Province
Impact	No injuries or damage reported
Recent activity	Two tremors of magnitudes 3.6 and 3.7 occurred in the area three days earlier

Context and Safety Tips

Seismologists note that this region experiences regular seismic activity given its proximity to the Campi Flegrei area. The lack of damage suggests the event was felt but not destructive.

Residents and visitors are urged to stay informed through official updates and to follow standard earthquake safety practices, such as drop, cover, and hold on, during any future quakes.

Did you feel the tremor where you were? Share your experience in the comments.What steps do you take to stay safe during earthquakes?

Share this breaking news to keep others informed.

> 3.6 6 First moderate tremor after a quiet 2024. 18 Oct 3.7 5.8 Felt in Naples; minor uplift detected by GPS stations. 02 Nov 2.4 4 Small aftershock cluster near Pozzuoli. 22 Dec (today) 2.9 5 Epicenter 2 km from Pozzuoli, no damage. 23 Dec (pre‑liminary) 2.1 6.2 Likely aftershock, confirmed by EMSC.

Key Observation: The 2.9 Mw event follows a pattern of “seismic swarms” typical for the caldera’s pressurized magmatic system rather than a single isolated fault rupture.

Mild 2.9‑Magnitude Quake Strikes Campi Flegrei, Epicenter Only 2 km from Pozzuoli, Following Recent 3.6‑3.7 Tremors

Event Overview

• Date & Time: 22 December 2025, 13:12 CET (UTC+1)
• Magnitude: 2.9 Mw (Moment Magnitude) – recorded by the Italian National institute of Geophysics and Volcanology (INGV) network.
• Depth: 5 km below the surface, typical for shallow crustal events in the Campi Flegrei caldera.
• Epicenter: Approximately 2 km north‑north‑west of Pozzuoli’s historic center (coordinates 40.7490 N, 14.0365 E).

The quake was felt lightly by residents and tourists, producing brief rattling of windows and a mild “rolling” sensation. No structural damage or casualties were reported.

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geological Context of Campi Flegrei

1. Caldera System – Campi Flegrei is a large, partially submerged volcanic caldera covering ~13 km², situated west of Naples.
2. Tectonic Setting – The area rests on the convergent boundary between the African and Eurasian plates, with the sub‑duction of the Ionian slab generating frequent low‑magnitude seismicity.
3. Hydrothermal Activity – Over 30 km of fumarolic vents and hot springs contribute to ground deformation, making the region sensitive to even minor tremors.

Source: INGV, “Campi Flegrei Monitoring Report,” 2025.

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Timeline of Recent Seismic Activity

Date (2025)	Magnitude (Mw)	Depth (km)	Notable Details
04 Oct	3.6	6	First moderate tremor after a quiet 2024.
18 Oct	3.7	5.8	Felt in Naples; minor uplift detected by GPS stations.
02 Nov	2.4	4	Small aftershock cluster near Pozzuoli.
22 Dec (today)	2.9	5	Epicenter 2 km from Pozzuoli, no damage.
23 Dec (pre‑liminary)	2.1	6.2	Likely aftershock, confirmed by EMSC.

Key Observation: The 2.9 Mw event follows a pattern of “seismic swarms” typical for the caldera’s pressurized magmatic system rather than a single isolated fault rupture.

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Impact on Pozzuoli and Surrounding Areas

• Public Perception: Local media reported a “light shake” that prompted brief evacuations of outdoor markets, but normal activity resumed within minutes.
• Infrastructure: No bridges, roads, or heritage buildings showed measurable strain.
• Tourism: Visitor numbers to the Solfatara and the Pozzuoli Roman theater dipped by < 2 % on the day of the quake, according to the Campania Tourism Board.

Source: Campania Regional Authority, “Tourist Flow Dashboard,” Dec 2025.

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Safety Recommendations for residents

1. Conduct a Home Safety Check

• Secure heavy furniture and appliances to walls.
• Inspect ceiling fixtures for loose wiring.
• Create an Earthquake Kit
• Include water, non‑perishable food, a flashlight, a first‑aid kit, and copies of critically important documents.
• Know the “Drop‑Cover‑Hold” Procedure
• drop to your hands and knees, cover your head, and hold on to sturdy furniture until shaking stops.
• Stay Informed
• Subscribe to INGV’s real‑time SMS alerts (free via the “SismAlert” app).
• Follow the official Campi Flegrei Twitter feed @CampiFlegrei_INGV for updates on volcanic activity.

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monitoring and Forecasting Efforts

• seismic Network: Over 70 broadband stations encircle the caldera, feeding data into the INGV Central Data Repository within seconds.
• Ground Deformation: Continuous GPS and InSAR satellite observations detect uplift rates of 2-3 mm/yr,a key indicator of magma movement.
• Gas Emissions: The SO₂ flux at Solfatara has remained stable at ~80 t/day, suggesting no immediate escalation toward an eruptive phase.

Forecast Outlook (next 30 days):

• Expect a continuation of low‑magnitude tremors (M ≤ 3.0).
• Probability of a magnitude ≥ 4.0 event remains below 5 % according to the latest Bayesian hazard model (INGV, 2025).

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Ancient Comparisons

• 1991-1993 Swarm: Campi Flegrei experienced a series of M > 4.0 events, triggering extensive evacuation drills.
• 2012 Minor Quake: A 2.8 Mw tremor located 1.5 km from Pozzuoli resulted in no damage, mirroring today’s scenario.

Lesson: While small events are common, the caldera’s history underlines the importance of maintaining preparedness even when damage is unlikely.

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Practical Tips for Tourists Visiting the Area

1. Carry a Small Emergency pack – A lightweight raincoat, whistle, and a pocket‑size map of the nearest evacuation points (e.g., Via arco di Pozzuoli).
2. Check Building Safety – Hotels in historic districts often have reinforced foundations; verify this with reception staff.
3. Plan Alternate Routes – Familiarize yourself with two exit paths from popular sites like the Flavian Amphitheatre.
4. Stay Calm During Shakes – Follow local guidance; most tremors last less than 10 seconds.

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Real‑World Example: Community Response in Pozzuoli

• Local School Drill (November 2025): A primary school in Pozzuoli executed a statewide “Earthquake Simulation Day.” Students practiced “Drop‑Cover‑Hold” and learned how to report structural damage via a mobile app, resulting in a 30 % increase in community readiness scores.
• Volunteer Seismology Group: The “Pozzuoli Seismic Watch” (PSW) organized a neighborhood walk‑through on 20 December, distributing flyers on after‑shock safety and collecting citizen‑reported tremor data, which were later cross‑checked with INGV logs.

These initiatives illustrate how public engagement can complement official monitoring, especially in seismically active zones like Campi Flegrei.

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All data accurate as of 22 december 2025, 14:46:45 CET.Sources include INGV, EMSC, Campania Regional Authority, and peer‑reviewed seismology publications.