Repeated earthquakes are rattling Greece’s volcanic island of Santorini. The quakes are prompting authorities to dispatch rescuers with tents, a sniffer dog and drones and to shut down schools on four islands.

Thousands of people are fleeing the Greek island of Santorini as increased seismic activity spurs fears of a more powerful earthquake at the site of one of the largest volcanic eruptions in history.

Thousands of people were leaving the Greek island of Santorini by sea and air for a third day as an unprecendented series of earthquakes shook the top travel destination.

Some locals and travelers are choosing to preemptively evacuate the Greek island of Santorini amidst the spike in seismic activity.

More Greek islands closed schools Tuesday as hundreds of earthquakes ratted the Aegean Sea, while a handful of hardy tourists enjoyed having Santorini’s stunning views to themselves

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.