Scientists say the earthquakes are attributed to a submarine fault near Santorini, not volcanic activity.
Tremors come as scientists last month announced that volcanic activity has been detected in Santorini's iconic caldera; 3.9R quake recorded off Anafi island after noon, local time
The President of the Earthquake Planning and Protection Organization (OASP) and Professor of Natural Disaster Management, Efthymios Lekkas, was reassuring stating that there was no serious cause for concern.