A Taylor Swift concert in Edinburgh was so loud it “shook the earth,” according to geological survey and global geoscience organization British Geological Survey (BGS).

The pop star put on three shows in Scotland from June 7 to June 9, at Edinburgh’s Murrayfield Stadium. BGS, who has monitoring stations in Edinburgh, said earthquake readings were detected up to six kilometres away from the concert venue.

“Each of the three evenings followed a similar seismographic pattern, with ‘…Ready For It?’ ‘Cruel Summer’ and ‘champagne problems’ resulting in the most significant seismic activity each night,” BGS said in a news release online.

The loudest evening detected was Friday, June 7.