It was a significant earthquake. I woke up out of a dead sleep. Felt like the roof of my house was being rolled back. It felt rolling like to me, not like the 1989 earthquake which I experienced as a 'sound', a huge jolt and building moving side to side and gaining momentum. Where I live, this quake didn't seem nearly as long as the 1989 quake. But I was closer to that epicenter so maybe that makes a difference. Had to turn on TV after I felt this one to see if we had just had a quake or was I dreaming.
NBCBayArea has been talking about it all day. 6.0 is TEN times larger than a 5.0. Also the nature of the geology in the area of the epicenter impacts the overall impact of the quake. When 'fill', soft mud, and 'sedimentary soil' are involved, it can increase damage. Also this was not on the San Andreas fault and yet it was felt throughout a similar area.