Two strong earthquakes were felt on the Greek islands on Sunday afternoon, four minutes apart. The quakes had magnitudes of 4.7 and 4.9, respectively.
Meanwhile, over 380 earthquakes have been recorded in the maritime area between Thira and Amorgos since January 24, raising concerns about a possible volcanic eruption on Santorini.
The last eruption occurred in 1950.
Experts emphasize that, although some warning signs have been noticed, an eruption is not ruled out.
Turkish Geophysics Professor Ovgun Ahmet Ercan said that three of the four main indicators of a volcanic eruption have been recorded on Santorini: shallow earthquakes and microearthquake storms, gas emissions and ground noise. However, he stresses that, even with these indicators, an eruption may not occur, or may be delayed for months or years.
Meanwhile, Panagiotis Karydis, a professor of earthquake-resistant construction, stressed to ERT that Greece is a seismic country and residents need to get used to earthquakes. According to him, the recent seismic activity is significant, but should not create immediate panic.
According to Vassilis Karastathis, director of the Geodynamic Institute of the National Observatory of Athens, after January 24, a large increase in seismic shocks has been recorded, with over 380 earthquakes so far, of which 85 have been above magnitude 3. In the last 24 hours, 10 earthquakes above magnitude 4 have been recorded, reaching up to 4.6.
The Geodynamic Institute of Greece is carefully monitoring the situation, while a seismograph is expected to be deployed on Monday in the Anydros area of Amorgos to further analyze the intense seismic activity.
Due to the situation, the Fire Department and the Armed Forces are on alert. EMAK special forces, a Bell helicopter and drones have been sent to the island.
A series of measures have been proposed, including the closure of schools and public institutions for an indefinite period not only in Santorini, but also on the surrounding islands in the Aegean, until the danger is removed.
Greek Prime Minister Kyriakos Mitsotakis called an extraordinary meeting of his cabinet at 7 p.m. local time to manage the situation.
Local authorities have also notified boat owners and tourism businesses to stay informed of further developments.