The Greek island has a long history of earthquakes, but what is causing the recent series of quakes has scientists perplexed.

Thousands of locals and travelers have evacuated the Greek island of Santorini amidst a spike in seismic activity.

The threat of a more major earthquake seems to have subsided on the most visited of the Greek islands but experts disagree on the origin of the tremors that have caused 11,000 of the 15,000 permanent residents to flee.

Several thousand earthquakes have been recorded near the Greek island since late January. So why is this happening?

February marks the unofficial start of the tourist season in the Greek island of Santorini - when the first cruise ships are due to arrive and the Easter holidays approach. But with thousands of earthquakes shaking the island since January and experts unable to say when they will end,

Scientists have detected several thousand earthquakes, the vast majority of them with small magnitudes, in just over two weeks near Greece’s volcanic island of Santorini, the University of Athens’