I was posting a message earlier on www.webhostingtalk.com when I felt the ground shake, my windows rattle, my dog barking, and my bird flying onto my head. Being down here in Florida the first thing that went through my head was Sinkhole.
I go out to look around and nothing. Sometimes they form under the house and you cant see them. So that had me worried for a sec.
Then I was thinking earthquake. I called my wife up at the time and she was out eating with her parents at a loud resturaunt.
At the time I was explaining what I had felt she really thought I was loosing it. She felt or heard nothing she said.
I then a couple hours later, when my wife is home, I find this on my local news site

If you heard and felt a large rumble just after 7:30 Friday night, you\'re not alone.

The event sent rumors circulating across the Bay area. The effects were were reported from Manatee County to Crystal River, and even Tallah***ee.

Bay area residents speculated everthing from earthquakes to UFOs.

According to the Federal Aviation Administration, the large rumbling was a sonic boom from two F-18 jets flyling too fast and too low into MacDill Air Force Base.

Bay news 9 also learned the booms were so loud that the vibrations registered a 2.7 on the Richter 5 scale as recorded by the National Earthquake Center in Denver, Colorado.

http://www.baynews9.com/content/36/2005/3/11/74337.html
Felt better to know now that my wife knows what it was that she doesnt think I am loosing it.

Thanks, Was quite funny afterwards.

I have experienced this before and is a real phenominon, especially if you never find out what it is.  I think it was last summer here in Central Oregon when I heard something like never before.  It was more of a pressure surge than a shake or boom.  The blinds in my windows moved a couple inches and my ears hurt but no real \'sound\' (no lowriding b***-mobiles either.  Caught the evening news the next day and learned that two airforce jets had collided in the Columbia Gorge.  They said the \'blast\' could be heard a hundred miles away, but i am over 200 miles from the gorge!  Amazingly, i think one of the pilots actually made it out alive.  Weird stuff!  One time in AL we sat through a 6.3 shaker.  My PC tower was dancing and i could feel the brackets in the framing of the house creaking!  How distracting.

Glad it was not a sinkhole for you and all is OK.