Thousands of people fled the Greek island of Santorini by sea and air for a third day on Tuesday, as more earthquakes shook the top travel destination. According to the Greek coastguard, over 5,700 people have left the island by ferry since Sunday.

Emergency services were deployed in readiness and schools were closed after more than 200 temblors struck in the Aegean, near Santorini, within 48 hours.

The Greek island of Santorini is being rattled by dozens of tremors, prompting authorities to close schools and airlines to announce additional flights on Monday to help people leave the popular tourist destination.

Thousands are fleeing the Greek island of Santorini in the southern Aegean Sea, rattled by continued intense seismic activity, according to local media. While many people anxious over the tremors left the island by ferry or plane, those who stayed are on alert, said public broadcaster ERT.

Residents and tourists on the Greek island of Santorini have been put on high alert after an increase in seismic activity.

Schools on the Greek island of Santorini have been told to close on Monday in response to an increase in seismic activity in recent days. Authorities have also advised against "large gatherings in enclosed spaces" across the island - a popular tourist destination known for its whitewashed buildings and blue domed churches.

Families boarded ferries and extra flights were laid on to help people leave Santorini on Monday as dozens of tremors shook the Greek island for a fourth day.

The strongest earthquake recorded was magnitude 4.6 at 3:55 p.m. Sunday, at a depth of 14 kilometers (9 miles), the Athens Geodynamic Institute said.