Santorinin has been rumbling for a few weeks now. The swarm quakes with values of more than 4 on the Richter scale sometimes shake the holiday paradise with its white, cube -shaped houses even every minute, which extend to the ridge of the cliffs. Thousands of residents have left the Greek island – they fear that there could be a main quake. Premier Kyriako’s Mitsotakis ordered the schools to be closed on Santorin and the neighboring islands this week.