The tourist hotspot has been rocked by days of seismic activity with thousands of earthquakes recorded since Friday. On Thursday evening, a 4.6 magnitude quake was recorded at 20:16 local time (18:00 GMT) in the sea between Santorini and another island, Amorgos, followed by a 4.2 magnitude quake roughly two hours later.

Experts say the Greek island of Santorini has been hit by more than 1,000 earthquakes, but they're not linked to the region's active volcanoes.