Greek islands continue to shake as experts fear stronger earthquakes - The activity has led to a significant exodus of residents and tourists

The Greek island has a long history of earthquakes, but what is causing the recent series of quakes has scientists perplexed.

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.