In 2003, an earthquake off the coast of Boumerdès, Algeria, triggered a sudden drop in sea levels by up to fifty centimeters in eight ports along the Côte d'Azur, a region in southeastern France. This unusual event, caused by strong underwater currents, damaged boats and served as a stark reminder that the Mediterranean Sea can produce dangerous conditions, including tsunamis. While the 2003 earthquake did not generate a full tsunami, it highlighted the region’s vulnerability. Scientists warn that the Côte d'Azur is not immune to such disasters and that current preparedness is inadequate. According to UNESCO, there is nearly a 100% chance that a tsunami of at least one meter in height will strike the Mediterranean within the next thirty years. Tsunamis can result from various causes, including earthquakes, underwater landslides, or volcanic eruptions. These events are not always limited to a single wave, and the first wave may not be the most destructive. The immense pressure from water masses can reach several tons per square meter, capable of destroying cars, public structures, and coastal infrastructure in seconds. The Côte d'Azur has experienced about twenty tsunamis since the 16th century, with some waves reaching over two meters in height. However, this history is largely unknown to the public, as the Mediterranean is often viewed as a calm and safe region. The Mediterranean is the second most tsunami-prone area in the world, after the Pacific Ocean. While the Pacific and Indian Oceans have received more media attention due to major disasters like the 2004 Indian Ocean tsunami and the 2011 Japan earthquake, the Mediterranean has also seen significant losses. Since 1970, tsunamis have caused over 250,000 deaths globally. The 2003 Algerian earthquake is one of the most concrete examples of the risks facing the Côte d'Azur, as disturbances in French ports demonstrated a phenomenon called "port resonance," which can amplify the effects of distant earthquakes. Evacuation times for a potential tsunami depend on the location of the triggering event. If the disaster originates near the Ligurian Sea, residents may have less than ten minutes to flee, while an event in northern Africa could provide up to ninety minutes. However, the city of Nice has not yet developed an evacuation plan, lacking signage, maps, or marked routes. Despite this, UNESCO’s Tsunami Ready program, aimed at improving coastal preparedness, is already active in forty pilot communities across twenty-one countries. The European Union and several donor nations support the initiative. Although Nice has access to the program and has a history of tsunami exposure, the city has not pursued the certification. What is missing is a clear political decision and a concrete action plan. The question is no longer whether a tsunami will hit the Côte d'Azur, but whether the city will be ready when it does.