Earthquake in Pennsylvania

Breaking News: I'm sitting at my desk in central Pennsylvania with 6" of concrete under me. The concrete just rippled enough to very noticeably shake my heavy glass and steel desk. Fortunately there appears to be no damage here.
 
I was on the phone with my Adorama rep at the time and conveyed to him what was happening. He was in disbelief until moments later it hit New York City also. Twitter is alive with the news.