The concert of American singer Taylor Swift in Zurich, Switzerland, led to seismic activity, according to the Swiss Seismological Service (SED). A similar phenomenon can be observed at concerts of other stars and football matches. At the stadium where the singer performed, 50 thousand fans gathered, and their synchronized jumping and dancing caused seismic vibrations. The peak of activity occurred at the beginning of the concert, immediately after Taylor took the stage. The tremors were recorded within a radius of six kilometers from the venue. Taylor Swift (photo: instagram.com/taylorswift) R…