Northern California has an earthquake!

I was just sitting here on my computer a moment ago thinking about what to write and all of the sudden the screen started to shake.  I have not felt an earthquake since the big one in ...whas it '86?  Living up here in the hills we don't usually feel them at all, much less to the point where they are shaking objects in the house.  And we had just been talking about what happened in Oakland with the police after the occupation protests.  This is some apocalyptic stuff going on here in California!