Increased seismic activity near Santorini has raised concerns about potential volcanic unrest, with experts monitoring a steady rise in tremors.
The Euro-Mediterranean Seismological Centre reported a notable change in seismic patterns, suggesting possible volcanic activity. "We hear some noise. We cannot be certain what is happening," the center posted on X (formerly Twitter). Geophysicist Luis Donoso added that monitoring stations have detected a continuous rise in seismic amplitude.
The Geodynamic Institute of the National Observatory of Athens recorded a 4.1 magnitude earthquake south of Amorgos. The National and Kapodistrian University of Athens (NKUA) reported over 100 earthquakes in the Cyclades region on Thursday.
Since Jan. 26, over 17,500 earthquakes have been detected in the Santorini-Amorgos zone, including more than 15,400 with magnitudes above 1.0. On Feb. 12, over 1,000 quakes were recorded, with the largest measuring 5.0.
In response, the Greek General Secretary for Civil Protection declared a state of emergency for Ios until March 14. Similar states of emergency are in effect for Thira, Amorgos, and Anafi.
Authorities are monitoring the situation closely, urging vigilance as scientists assess the potential risks.