The Greek island of Santorini has been rattled by a further earthquake.The latest quake, one of thousands to hit the volcanic island in recent weeks, is the strongest so far with a magnitude of 5.3.Medical staff staged a hospital evacuation drill as scientists said it is unclear whether the weeks of highly unusual seismic activity precede a larger quake.

The strongest earthquake yet after days of near-constant tremors has been recorded near the island of Santorini, the famous Greek tourist haven now almost emptied of visitors and residents.

The latest of hundreds of earthquakes have rattled the volcanic Greek island of Santorini after the strongest one so far with magnitude 5.3.