Greece’s government has declared a state of emergency on Santorini after hundreds of undersea earthquakes shook the resort island for nearly a week.

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 last week, thousands of residents have left the island by plane and ferry, as hundreds of earthquakes continue to shake the region.