Although swarms typically involve earthquakes of lower magnitudes, they can last for days to weeks, or persist for months. They can even slow down, and then intensify again, unsettling locals with ...

On Monday, a magnitude 5.3 earthquake struck in the sea area between Santorini and Amorgos in the Cyclades. This seismic ...

Seismic activity near Greek island has prompted evacuations to the mainland, but scientists cannot predict whether these earthquakes will get worse.