The Mediterranean Sea has been viewed over the years as a body of water that is not prone to major natural calamities such as tsunamis. However, scientific evaluations have shown that this assumption does not necessarily hold. The coastal regions of Southern Europe, such as the Côte d’Azur, which is very densely populated, and other major towns such as Nice, have shown significant levels of exposure to tsunami risk due to natural disasters such as earthquakes, landslides, and volcanic eruptions. Studies carried out by institutions such as the University of Montpellier, in collaboration with international bodies such as UNESCO, have shown that there is a possibility of moderate-level tsunamis happening in short windows of time.
Mediterranean tsunami risk in the next 30 years driven by tectonic plate activity
The Mediterranean Sea, despite its calm nature in comparison with other oceanic zones such as the Pacific, is still a region of geological activity. The region is a meeting point for different tectonic plates, which are always prone to disturbances in the form of earthquakes, capable of displacing huge amounts of water in the sea, thus creating a tsunami wave. Historical records indicate that there have been many tsunamis in this region, hitting different areas along its coast, such as the Côte d’Azur. Such events are not always given due attention and importance, as they are less frequent in this region than in other parts of the world, but their potential threat cannot be ignored, given the high density of human settlements along its coast.Scientific studies and evaluations conducted under UNESCO have indicated that there is a high possibility of a tsunami wave of over a meter in height occurring in this region in the near future. Such a prediction is not made on the basis of any particular event, but through statistical analysis of other geological activities in this region, such as earthquakes and landslides underwater, which are common in this region, indicating a high possibility of a tsunami wave occurring in this region in the near future.
Mediterranean tsunami waves triggered by underwater earthquakes
Tsunamis in the Mediterranean region are normally caused by sudden disturbances on the seabed. These disturbances can be caused by various factors, with the most frequent cause being earthquakes. Landslides and volcanic activities can also contribute to the occurrence of tsunamis. When the seabed suddenly moves, it creates movement in the water column above it. As the water above the seabed moves, it creates waves. These waves can pass through deep water without being felt, but when the waves reach the shallow water, they become much larger. As the Mediterranean is a closed basin, the effects of the tsunamis can be magnified.
Historical events that demonstrate real risk
Previous occurrences also show that tsunamis in the Mediterranean region are not just theories but actual events. The past occurrences in the Côte d’Azur region include tsunamis with both far-field and near-field triggering mechanisms. Earthquakes and underwater landslides are some of the past events that resulted in sea level changes, strong currents, and waves. In some instances, the sea level was observed to fall before rising as tsunamis.
Preparedness, monitoring, and public awareness
Today, risk management techniques often employ scientific modelling in addition to public preparedness techniques. Studies carried out by institutions such as the University of Montpellier have helped in identifying areas for evacuation, population exposure, and designing efficient routes of escape. Cities such as Nice have incorporated these techniques in urban planning. Although early warnings are essential in such cases, experts have emphasised that preparedness on the part of the population is equally vital, especially in areas where evacuation has to take place in a matter of minutes.
