A large landslide occurred in the village of Imerovigli on the island of Santorini, Greece, at 15:30 LT (12:30 UTC) on August 20, 2025, collapsing part of the volcanic caldera cliff and generating a dense dust cloud over the area.
Researchers at the 10th Delphi Economic Forum on April 13, 2025, revealed that the use of advanced machine learning technology enabled them to detect over 50 000 earthquakes in Santorini, some of which occurred before the intense earthquake swarm in February 2025. This early detection enhanced earthquake forecasting and improved warning procedures during the crisis.
Schools in Santorini, Ios, Anafi, and Amorgos will remain closed at least until February 21, 2025, as the Greek government prepares for another meeting to assess seismic risks in the Aegean Sea near Santorini. Over 1 300 earthquakes were recorded with a magnitude above 3.0 in the sea area near Anydros since the beginning of the month, with the strongest reaching M5.3. The government also announced plans to build an emergency escape port in Santorini in addition to the new port under development.
Ios became the fourth island in the Aegean to be placed under a state of emergency on February 15, following the trend set by Santorini on February 6, Amorgos on February 12, and Anafi on February 13, due to the ongoing seismic activity in the region since late January 2025. On January 18, two M5.1 quakes were registered between Santorini and Amorgos, shaking the area with enough intensity to be felt across multiple islands.
The Greek island of Anafi was placed under a state of emergency on February 13, 2025, due to ongoing intense seismic activity. This makes it the third island in the Aegean Sea to receive this designation following Amorgos and Santorini (Thera).
Authorities have placed the Greek island of Amorgos under a state of emergency on February 13, 2025, following a surge in seismic activity in the southeastern Aegean Sea.
Over 12 800 earthquakes were recorded in the Santorini-Amorgos zone between February 1 and 10, 2025, with the strongest, an M5.3 event, registered at 22:16 LT (20:16 UTC) on February 10. In response, the Hellenic Red Cross (HRC) has deployed rescue teams, social workers, and psychologists to assist residents in the affected region.
A state of emergency was declared for the Greek island of Santorini on February 6, 2025, due to significant seismic activity affecting the region over the past 10 days. The measure was announced by General Vasilis Papageorgiou, Civil Protection Secretary, and will remain in effect until March 3. The most powerful earthquake recorded so far, measuring 5.2 in magnitude, occurred on February 5. The continuous seismic activity has led to the evacuation of over 10 000 residents and workers from the island.
Over 9 000 residents and tourists evacuated Santorini island by ferry and emergency flights on February 3 and 4, 2025, following a surge in seismic activity that began on January 28. Authorities remain on high alert as the region continues to experience strong earthquakes, including 43 tremors above M4.0 since February 1.
In response to ongoing intense seismic activity, Greek authorities have deployed the EMAK emergency rescue team to Santorini, setting up temporary shelters near the indoor stadium. From February 1 to 3, 2025, more than 200 earthquakes have been recorded between Santorini and Amorgos, with the strongest reaching M4.8 on February 3. Schools on Santorini and nearby islands have been closed, and residents have been advised to avoid vulnerable structures. Additional flights have been scheduled to facilitate departures from the island.
