We soon learned that while we were incommunicado, a magnitude 5.1 earthquake had hit just outside of Athens. It shook things up a bit, but nobody was hurt and there wasn't any significant damage.
Apparently it struck while the hotel staff was servicing our room. It looked like whoever was cleaning stopped in mid-mop. There were bags and rags left in our room, and the bed was only mostly made!
The one thing that made me happy, though, was it gave me a chance to make this joke — there are few places other than Athens where it would work!