While the country star Garth Brooks was performing his hits at the Tiger Stadium in Baton Rouge, Louisiana on Saturday, a seismograph at nearby LSU apparently registered a small earthquake in the area from the noise. It apparently went off when he played local-favorite track “Callin Baton Rouge,” and while it’s incredible to imagine a country crooner creating earthquakes off his vocal chops alone, the reality is the seismograph registered the noise from the explosive fan reaction as they stomped their feet, applauded and cheered for Brooks. The song is a tailgate anthem for LSU and is played f…