A series of earthquakes have been rattling the volcanic Greek island of Santorini for days, prompting residents to evacuate and officials to quickly strengthen emergency plans. Santorini is one of Greece's most popular tourist destinations,

Tourists continued to flee the Greek island of Santorini on Wednesday — a fourth consecutive day of exodus sparked by a series of earthquakes that have rattled the incredibly popular European vacation destination.

Earthquakes are still rattling Greece’s volcanic island of Santorini every few minutes as authorities bolster their emergency plans in case the hundreds of temblors in recent days are a harbinger of a larger quake to come.