In an urgent announcement issued by the Interdisciplinary Committee for Risk and Crisis Management at the National and Kapodistrian University of Athens (EKPA), it was revealed that more than 12,800 earthquakes have shaken the Santorini-Amorgos zone in just ten days.
According to the daily analysis of seismic data from EKPA’s Seismology Laboratory, 102 tremors were recorded on February 9th alone. Among these, 14 had magnitudes of M≥4.0, and two reached M≥4.5, with the largest earthquake striking at 21:05:40 (local Greek time) with a magnitude of M=5.0.
This intense seismic activity has led to numerous landslides that are impacting both the natural and built environments of Santorini. The research team from EKPA’s Department of Geology and Geoenvironment has been closely monitoring the situation. Their analysis shows landslides occurring not only within the caldera slopes but also outside of it. Significant areas affected include the southern coastal parts of Santorini, the central-eastern caldera slopes, and the northern section of the island.
Red Beach and Vlychada Beach are among the most impacted areas, with landslide debris significantly altering the landscape. While Red Beach has been inaccessible for years due to rock falls, Vlychada Beach’s width has been considerably reduced by the accumulation of unstable masses.
Although landslides near the Athinios port have been limited in extent, no damage has been reported to the port facilities or surrounding businesses. In contrast, rock falls along the road from Oia to Fira require vehicles to transit the area with caution.
In response, the Civil Protection authorities have implemented non-structural measures such as restricting access to high-risk areas and closing off certain road sections. Further research and structural interventions, tailored to Santorini’s unique volcanic landscape, are deemed necessary once seismic activity stabilizes.
The ongoing seismic sequence and its effects remain a key focus for EKPA’s dedicated Interdisciplinary Committee, led by Efthymios Lekkas, Emeritus Professor of Geology and Geoenvironment. The committee is actively working to address the risks and coordinate responses to safeguard both residents and the island’s natural beauty.
For further information and updates, the committee’s communication is overseen by Mr. Dimitris Koutsobolis of the Department of Communication and Media.
