A Layman Interprets a Seismogram

seismogram from fark.com

Above is the automatically generated seismogram starting at 12:00 UTC from station CVVA, a strong-motion acellerometer sited in Charlottesville, VA (within 70 km of the epicenter of the M=4.5 earthquake which occurred at 15:59:14 UTC). The commentary was posted on fark.com by an unknown contributor.