Earlier this evening I was watching that show about Churchill's bodyguard on telly with G and the earth shook. It felt very strange and wobbly. Not at all scary because a) it didn't last very long and b) nothing fell off the shelves or fell down even. I asked G and he thought it was just the windows rattling or someone outside but agreed there might have been a tremor. Just before I googled "earth tremor" and found this and a slightly more detailed report here with comments full of crazy talk.
I was right. The earth did move.