Santorini, one of Greece’s most iconic tourist destinations, is experiencing intense seismic activity, with hundreds of tremors rattling the island over the past few days. A magnitude 5.3 earthquake struck east of the island on Tuesday,

The hundreds of earthquakes that have rattled Greek islands on the Aegean Sea are a “seismic swarm" and could continue for weeks before eventually diminishing, the Santorini mayor told The Associated Press on Tuesday — pausing to chuckle as new tremors shook items on his desk.

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.