At 3:48am there was an earthquake here in Guam. It registered 5.1 and according to several sites Guam is 40 miles from the epicenter. This quake shouldn't come as a surprise, these things are common practice for me whenever I seem to be in a new location!
I'm guessing this won't be the last one. I was informed a day or so ago that Guam gets earthquakes pretty regularly. Nothing like your hotel swaying in the breeze (when there is no breeze)!