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

An accumulation of weak to moderate earthquakes has been recorded around the Greek island of Santorini since 24 January. The seismic activity is concentrated in the area between the islands of Santorini and Amorgos,

People have been advised to avoid large indoor gatherings, small ports and areas where rockslides could occur.