The InfraWare corporate offices occupy the 9th and 10th floors of the Sycamore Building in Terre Haute.  We've been in this location for 8 years.  On Tuesday, shortly before 2pm, we felt the building sway like never before.  It was moving several inches in each direction.  Later, we learned of the earthquake centered in Mineral, VA.  We suspected a distant earthquake from southern Indiana but never guessed in might have been from 600 miles away.  It does make sense though.  What we felt wasn't a rapid vibration like you see in footage from near the epicenter.  Instead, it was a slow, steady rocking of the building.  Much like the waves from a pebble in the water get wider as they move out from the center, we experienced a much lower frequency shaking.  It is still hard to believe it was felt so strongly such a far distance away.  No damage or injuries.