...which woke me up at 4:04 AM, measured about 4.4 on the Richter Scale. And it measured a 5 on the Caltech scale, which is the number of news vans parked in front of the earthquake building when I arrive for work. Five is very high for such a small quake, but it's because the quake was local.
The fastest scoop on recent earthquakes and what they measured can always be found at the United States Geological Survey, here.
This isn't Caltech's earthquake building, but it should be. (It's the new astronomy building.)