quake

We just had a pretty big earthquake! 5.6 ain't no joke! I hope everyone in the southern part of the east bay is okay.

The room was shaking and everything that was hanging, was swinging.
There was a subtle sound of creaking or movement.
The whole thing lasted for about 7 seconds which is a long time to feel the earth move under your feet while wondering if you're going to need to find some additional safety beyond the local doorframe (not so possible from the fourth floor penthouse here sadly!)

Here are screen shots from Earthquake.usgs.gov just after it happened: