Multiple earthquakes are rattling Santorini, a volcanic island in Greece, prompting authorities to dispatch rescuers with tents, a sniffer dog and drones, and to shut schools on four islands.

Santorini, a popular tourist destination in Greece, was put on a on high alert following a series of over 200 undersea earthquakes between Santorini and another Greek island Amoros, in the past four days.

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