Metallica, long a Bay Area institution, and Virginia Tech, an unassuming school in the rural South. In the minds of college football fans, however, the two are inexorably intertwined. That's because the Hokies have played Metallica's 1991 hit "Enter Sandman" before their team takes the field for every home game since 2000.

Here is something fun, Hokie fans made an impact during Wednesday night’s Metallica concert, literally. A reading from Wednesday night at the Virginia Tech Seismological Observatory shows us how. As you can see in the seismograph,