Greek officials are warning those on the popular tourist island destination of Santorini to stay alert in the coming days due to increasing seismic activity which could mean a strong earthquake is possible.

Thousands of residents are fleeing Santorini after hundreds of earthquakes were recorded near the Greek island in the last 48 hours. About 9,000 people have left the island since Sunday, with additional emergency flights scheduled to leave on Tuesday.

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.