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.

Since Sunday, hundreds of near-constant tremors have been recorded in the sea between Santorini and the island of Amorgos, the strongest measuring a magnitude of 5.2 on Wednesday night.

Repeated earthquakes are rattling Greece’s volcanic island of Santorini. Scientists say the quakes aren't related to a slight increase in volcanic activity that has also been registered recently.