Strong 5.0 Magnitude Earthquake Strikes Between Santorini and Amorgos; Aftershocks Rattle Region

08:38 10/2/2025 - Πηγή: iEfimerida

A 5.0 magnitude earthquake struck between the islands of Santorini and Amorgos on Sunday evening, followed by a series of aftershocks that rattled the region, according to the Geodynamic Institute.

The quake, which occurred at 9:05 p.m., had a focal depth of 11.2 kilometers and was centered 21 kilometers southwest of Arkesini, Amorgos. The tremors were felt as far as Athens.

The initial quake was followed by multiple aftershocks, including a 4.3 magnitude tremor at 9:16 p.m., another 4.3 magnitude quake at 9:17 p.m., a 4.1 magnitude tremor at 9:25 p.m., and a 4.2 magnitude quake at 9:31 p.m. Earlier in the evening, a 4.7 magnitude quake was recorded at 8:53 p.m., preceded by a 4.2 magnitude tremor at 8:41 p.m.

Seismic activity in the area has been ongoing, but experts remain cautiously optimistic.

“We have observed a decrease in the rate of seismic activity, but we need to ensure this trend continues,” said Vassilis Karastathis, director of the Geodynamic Institute, in an interview with Greek public broadcaster ERT.

Athanasios Ganas, the institute’s research director noted “small signs of stabilization, with the seismic sequence continuing but not exceeding magnitudes of 5.1 or 5.2.”

The region has experienced heightened seismic activity in recent weeks, prompting concerns among residents and authorities.

However, experts emphasize that the current pattern suggests a gradual decline in intensity.

No injuries or significant damage have been reported so far, but local officials remain on alert. The Greek Civil Protection Agency has advised residents to stay cautious and follow safety guidelines in case of further tremors.

The Cyclades islands, including Santorini and Amorgos, are located in a seismically active zone, making earthquakes a common occurrence. Authorities continue to monitor the situation closely as the seismic sequence unfolds.

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