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. Residents have been warned to avoid indoor gatherings,

Hundreds of people packed a port on the Greek island of Santorini in the early morning hours of Tuesday to board a ferry to safety while others hoped to fly out on additional flights. Numerous quakes have been registered every few minutes in the sea between the volcanic islands of Santorini and Amorgos in the Aegean Sea since Friday.