I think we just had an earthquake. Not very big--maybe 4.5 or 5--we'll have to see where the epicenter was. I'm thinking it wasn't terribly close since there was probably 5 seconds between the S and P waves.
According to Derrick (and the USGS) it was actually a 5.9 near Ocotillo, CA (so, about 90 miles east and a bit above the US/Mexico border. We're actually approximately 120 miles from the epicenter since it wasn't in Ocotillo).
Good geologists that we are, we woke up Sylvia to share this experience with us. Silly parents. She's now telling us "no" to everything we ask. Especially, "do you want to go back to bed now?" This is going to be a fun night.
Oh, now it looks like it's a magnitude 5.7 quake. Wonder if this'll be downgraded to a 5 by tomorrow morning.