I was in McLean, VA in a ground floor conference room. The shaking was pretty strong. We had to evacuate our building but our systems never went down. People were more emotionally shaken than physically. My boss is a CA native and she helped folks understand it really wasn't the end of the world. A friend is on a news crew and he rushed down to Mineral. He said aftershocks are happening. I'm home in Frederick County, MD now and not even a piece of paper is out of place. My sister in Wilmington, NC felt it too! Pretty amazing.