Schools were closed and emergency crews deployed on the volcanic Greek island of Santorini after a spike in seismic activity raised concerns about a potentially powerful earthquake. Precautions were also ordered on several nearby Aegean Sea islands after more than 200 undersea earthquakes were recorded in the area over the past three days.
Authorities banned access to some seaside areas, including the island's old port, that are in close proximity to cliffs. Mobile phones on the island blared with alert warnings about the potential for rockslides, while several earthquakes caused loud rumbles.
