Governmental Response to Volcanic Hazards in Italy

When Mount Vesuvius last erupted in 1944, it buried two towns and killed 21 people. Today, over 700,000 people live in the volcano’s “red zone”-the area that would be devastated by a similar eruption. Yet this densely populated region hasn’t seen panic or mass exodus. Instead, Italy has developed one of the world’s most sophisticated volcanic hazard management systems, turning what could be catastrophic into something manageable through science, coordination, and community engagement.

The backbone of Italy’s volcanic defense
Eyes on the mountains
The color-coded warning system
When sirens wail
Building a culture of preparedness
Technology meets tradition
The challenge of building restrictions
Living with uncertainty

The backbone of Italy’s volcanic defense

At the heart of Italy’s response to volcanic threats stands the Civil Protection Department (Dipartimento della Protezione Civile), established in 1992 and operating directly under the Prime Minister’s office. This isn’t just another government agency-it’s the central nervous system that coordinates everything from scientific monitoring to emergency evacuations across Italy’s active volcanic regions.

What makes Italy’s approach unique is its integration of multiple layers of government and expertise. The National Civil Protection Service brings together the State, Regions, Autonomous Provinces, and Local Authorities, working alongside the National Fire and Rescue Service, Armed Forces, scientific community, and thousands of trained volunteers. Think of it as a well-rehearsed orchestra where everyone knows their part before the music starts.

The Department doesn’t just react to crises-it proactively develops detailed emergency plans tailored to each of Italy’s active volcanoes. Vesuvius requires different protocols than Mount Etna, and the explosive Campi Flegrei caldera demands its own specialized approach. These plans are living documents, constantly updated based on new scientific data and lessons learned from drills and real events.

Eyes on the mountains

Italy’s volcano monitoring system represents nearly two centuries of accumulated expertise. The crown jewel is the Vesuvius Observatory, founded in 1841 by King Ferdinand II of Bourbon-making it the world’s oldest volcanological observatory. Today, it operates as part of the National Institute of Geophysics and Volcanology (INGV), maintaining round-the-clock surveillance of Vesuvius, Campi Flegrei, and Ischia.

The technology behind this vigilance is impressive. Dense networks of seismic stations detect even the slightest tremors. GPS stations measure ground deformation down to millimeters. Geochemical sensors analyze gases emerging from fumaroles, while thermal cameras track temperature changes that might signal rising magma. All this data streams in real-time to monitoring rooms where scientists work in shifts, ensuring that no warning sign goes unnoticed.

The color-coded warning system

How do you communicate complex volcanic activity to millions of people? Italy uses a brilliantly simple four-color alert system: green represents normal activity, yellow indicates volcanic unrest, orange signals escalating crisis, and red means an eruption is imminent or underway. Each color triggers specific actions-from increased monitoring at yellow to mandatory evacuation at red.

The Civil Protection Department declares these alert levels in close collaboration with regional authorities, after consulting with the National Commission for the Forecasting and Prevention of Major Hazards. Monthly videoconferences between the Department and the Vesuvius Observatory ensure constant communication. When seismic events exceed certain thresholds-magnitude 2.5 for Vesuvius or 1.5 for Campi Flegrei-the Observatory issues preliminary press releases within five minutes, followed by detailed reports within thirty minutes.

When sirens wail

In October 2024, millions of Italian cellphones suddenly buzzed with an alert message. It wasn’t a real volcanic crisis-it was a massive drill testing Italy’s preparedness for a Campi Flegrei eruption. The four-day exercise involved thousands of residents practicing evacuation procedures alongside emergency responders, testing everything from transportation logistics to temporary shelter operations.

These drills are more than just exercises-they’re crucial learning experiences. The most notable is MESIMEX (Major Emergency Simulation Exercise), which simulates complete evacuations of volcanic threat zones. The 2006 MESIMEX exercise for Vesuvius tested international cooperation and evacuation procedures. More recently, the 2019 Campi Flegrei exercise drew over 3,000 participants, far more than previous attempts, reflecting growing public awareness of volcanic risks.

Building a culture of preparedness

Mock drills alone don’t create resilient communities. Since 2011, the Civil Protection Department has run the “I don’t take risks” (Io non rischio) campaign, promoting correct information about major risks and explaining proper conduct before, during, and after emergencies. The campaign has expanded into schools, spreading civil protection practices among younger generations who will one day face these challenges themselves.

At the local level, mayors serve as the first Civil Protection Authority in their communities. Municipal emergency plans and local exercises become tools for informing citizens about specific risks in their territory and the behaviors they should adopt in an emergency. Training courses for municipal officials, volunteers, and operational structures ensure that when crisis strikes, everyone knows their role.

Between 2012 and 2014, the Department organized specialized training activities on volcanic risk for municipalities in the Vesuvius and Phlegraean Fields areas. These courses combined classroom lectures with field visits to the volcanoes and the Vesuvius Observatory, giving participants direct experience with the environments and science that underpin emergency planning.

Technology meets tradition

In 2020, Italy launched IT-Alert, a public warning system that broadcasts emergency messages directly to mobile phones in specific geographical areas. During a volcanic crisis, everyone in the affected zone would receive detailed text messages about imminent dangers and required actions. While the system has limitations, it represents a crucial advancement in mass communication during disasters.

But technology complements rather than replaces human infrastructure. Medical facilities in high-risk zones maintain detailed patient evacuation procedures. Mobile field hospitals can deploy rapidly to provide emergency care during evacuations. Strategic stockpiles of respiratory protection equipment stand ready for distribution during ash fall events. The Campania region has even established a dedicated Volcanic Emergency Medical Response Network linking hospitals, ambulance services, and the civil protection system.

The challenge of building restrictions

Perhaps the most controversial aspect of Italy’s volcanic risk management involves restricting development in danger zones. New construction is heavily limited in the highest-risk red zones around Vesuvius and Campi Flegrei. Buildings in ash-prone areas must meet specifications for roof load-bearing capacity to prevent collapse under accumulated volcanic debris. Critical infrastructure like power stations and water treatment plants have been hardened to withstand certain volcanic impacts.

Enforcement remains challenging. In 2003, the Civil Protection Agency launched the Vesuvia program, aiming to relocate 20% of the red zone population by offering families 30,000 euros to move to safer areas. The program also sought to demolish illegal constructions and prevent further unauthorized building. However, practice drills have been poorly attended, and many residents remain in high-risk areas, drawn by fertile volcanic soil, established communities, and simple inertia.

Living with uncertainty

Despite Italy’s impressive preparedness infrastructure, predicting volcanic eruptions remains extraordinarily difficult. Volcanic phenomena are complex and highly variable. Even with sophisticated monitoring, scientists cannot predict with certainty when or how an eruption will occur. Precursor phenomena-earthquakes, ground deformation, gas emissions-indicate an ongoing process, but not its inevitable outcome.

This uncertainty poses profound challenges. Vesuvius has a history of sudden-onset explosive eruptions. The current dormancy period is the longest in nearly 500 years, which some experts find concerning rather than reassuring. With 72 hours warning time, authorities hope to evacuate 500,000 people from the red zone alone, but a larger eruption could affect up to three million people. False alarms could devastate the regional economy and erode public trust.

Moreover, public perception doesn’t always align with scientific risk assessment. Some residents dismiss the danger, viewing volcanic activity as part of normal life in the region. Others feel caught between scientific warnings and the practical impossibility of abandoning homes, businesses, and communities built over generations. As one elderly resident put it during the 2024 Campi Flegrei drill: “Some volcanologists say it’s dangerous, others say it isn’t. What do I know? I am in the hands of God.”

What do you think? How can governments balance the need for public safety with respect for communities who have lived alongside volcanoes for centuries? What role should individual choice play when scientific predictions remain uncertain?

References

PDF 📄

Table of Contents

The backbone of Italy’s volcanic defense 🔗

Eyes on the mountains 🔗

The color-coded warning system 🔗

When sirens wail 🔗

Building a culture of preparedness 🔗

Technology meets tradition 🔗

The challenge of building restrictions 🔗

Living with uncertainty 🔗