The popular Greek holiday island of Santorini is taking emergency measures in response to intense seismic activity

The increase in seismic activity around the tourist island of Santorini is causing concern among officials, who have ordered schools to shut across the island and warned locals to drain their pools

Schools have been closed and emergency crews were deployed on the Greek island of Santorini after a spike in seismic activity raised concerns about a potentially powerful earthquake. Precautions were also ordered on several nearby Aegean Sea islands – all popular summer holiday destinations – after more than 200 undersea earthquakes were recorded in the area over the past three days.