Initial shock was a 6.5 epicentered in San Simeon (Central CA, along the coast), followed by a 4.7 aftershock, then a bunch more aftershocks...
http://quake.wr.usgs.gov/recenteqs/Maps/121-36_eqs.htm
WRT Hearst Castle - it's built like fort. I doubt that it suffered any damage, other than some broken windows. Most (if not all) of the antiquities are bolted down, in preparation for a quake.
At 6.5, it was felt up and down the entire state....
