Santorini, the popular Greek holiday island, is taking emergency measures in response to intense seismic activity

Residents and visitors have been advised to avoid large indoor gatherings and areas where rock slides could occur. View on euronews

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.

Schools have been shut and public gatherings are being discouraged on the Greek island of Santorini as local authorities put the popular tourist spot on high alert for a big earthquake, following scores of small temblors over the last two days.

Schools remain shut and evacuation flights are underway as Greek holiday island Santorini was rattled by earthquakes for the fourth day in a row. A spike in seismic activity has been recorded on the volcanic island in the Aegean Sea since Friday,

While Greek experts say the quakes, many with magnitudes over 4.5, are not linked to Santorini’s volcano, they acknowledge that the pattern of seismic activity is cause for concern.

Santorini is on high alert following over 200 undersea earthquakes, prompting authorities to close schools and deploy emergency crews. Though the quakes are not linked to its volcano, the increasing seismic activity is concerning,

Despite dozens of minor earthquakes in recent days, Greek scientists have ruled out a massive earthquake hitting Greece's Santorini island.

Greek authorities have warned of an increase in seismic activity around the Aegean tourist island of Santorini, advising people to avoid four ports, empty their pools, refrain from gathering in indoor spaces and shut schools on Monday.