Athens, February 17, 2025 – A 5.1-magnitude earthquake struck the sea between the Greek islands of Amorgos and Santorini on Monday morning, according to the Geodynamics Institute of the National Observatory of Athens.

The tremor occurred shortly before 10 a.m. local time (08:00 GMT), with its epicenter located 21 kilometers (13 miles) southwest of Arkesini in southern Amorgos at a depth of 15 kilometers.

There have been no immediate reports of damage or injuries, although the quake was felt across parts of the Cyclades, prompting concern among residents and local authorities. The seismic activity comes amid a particularly active period, with more than 18,400 quakes recorded off the Cyclades islands between January 26 and February 13, according to the University of Athens (EKPA) seismology laboratory.

In response to the heightened seismic activity, Amorgos and three other islands have been placed under a state of emergency until March 11. Seismologists are continuing to closely monitor the region for potential aftershocks, as well as any signs of further tectonic movement.

Amid the ongoing tremors, Greek authorities have announced plans to bolster emergency preparedness on Santorini. In an interview with ANT1 television, Greek Minister of Climate Crisis and Civil Protection Vassilis Kikilias advised Santorini residents to move away from coastal areas and seek higher ground in the event of a major earthquake. Following discussions with Prime Minister Kyriakos Mitsotakis, Kikilias revealed that the government, in cooperation with the Hellenic Armed Forces, will construct a dedicated emergency port on the island in addition to the large port currently under construction.

Kikilias also highlighted the complex geological landscape of the Aegean region, noting that numerous underwater volcanic zones and recent magma activity have necessitated enhanced monitoring of ground uplift and land displacement on Santorini. Authorities are working to ensure that both residents and visitors remain informed and prepared as the situation develops.

As the region continues to experience significant seismic activity, local officials urge vigilance and adherence to safety protocols while emergency measures are put in place.

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