I was at that Ravens snow game too and have never seen anything else like it. I'm a lifelong Ravens and Baltimore Colts and Orioles fan and have been lurking on here for a very long time. I live in Caroline County just south of Denton and I'm about 10 miles south of CAPE's location. I'm unlurking now because I wanted to ask a question about earthquakes. I worked at Caroline Country Club back in 2011 when the magnitude 5.8 one hit and we felt it big time there. I believe that I may have felt a small tremor here last Saturday night around 8:00 PM, right before game 7 of the World Series started (speaking of crazy sports events). The sounds that my house made and the duration of the "event" reminded me of the 2011 one, but on a very small scale. I didn't have my TV sound on and it was very quiet, otherwise I may not have noticed it. I immediately opened the door and there was no traffic anywhere near me and totally silent outside. My question is, is there any way to check to see if a tremor happened here then or anywhere else for that matter? I checked the USGS site and nothing was listed. Do any government agencies monitor tremors everywhere at all times or do any local hobbyists in this area have equipment to do so? Sorry about the long winded first post and thanks to everyone for the great information that American Weather provides.