A new study by Greek scientists has warned of the possibility of a tsunami occurring in the central Aegean region between Santorini and Amorgos.
Scientists from the National and Kapodistrian University of Athens (NKUA) warned that while seismic activity is a known trigger, landslides—both on land and underwater—could also generate destructive waves, emphasizing the need for preparedness and public awareness.
According to the research team, the risk of a tsunami is not solely linked to recent seismic activity but represents an ongoing hazard for the area.
Greece, known for its high seismicity, requires a well-organized evacuation plan, clear guidelines, and continuous public training to mitigate potential disasters. Because tsunamis can strike unpredictably, coordinated prevention and preparedness measures are essential.
A team from NKUA’s Department of Geology and Geoenvironment conducted an extensive mapping of areas at risk and assessed the suitability of existing tsunami refuge points designated by local municipalities.
Key findings on the risk of tsunami in the Aegean
Some proposed refuge areas, such as in Katapola and Aegiali on Amorgos, are strategically placed and offer adequate protection.
On Santorini, designated refuge points are located far from the coast (e.g., 3,100m from Perivolos village and 3,200m from Perissa village). While these distances provide safety, they may hinder rapid pedestrian evacuation during an emergency.
On Ios, the only designated assembly point near the port, Chrysi Akti, falls within a zone vulnerable to flooding, even under a mild tsunami scenario (0-3m run-up), making it unsuitable.
On Naxos, many designated refuge areas fall within high-risk zones. Due to the dense urban layout of Naxos Chora, authorities are urged to revise evacuation sites and improve accessibility to safe zones.
Need for additional preparedness measures
The study highlights that following international best practices for tsunami evacuations is crucial. It calls for immediate action to enhance safety in the region, recommending:
- Updating and revising designated refuge areas as needed.
- Establishing clear evacuation zones and escape routes.
- Marking and mapping evacuation routes for public guidance.
- Increasing public awareness and education efforts for both residents and visitors.
- Conducting preparedness drills involving citizens, local authorities, and emergency services.
- Enhancing scientific monitoring of seismic and geodynamic activity, as well as strengthening the early warning system for tsunamis.
As concerns over potential tsunamis grow, authorities and communities in the Cyclades must prioritize preparedness to minimize risks. This latest study underscores the importance of proactive measures in safeguarding lives and infrastructure in one of Greece’s most seismically active regions.