She starts screaming and freaking out and the house is apparently shaking. It's a four-story house, y'all. That's a lot to shake.
Once outside, once the world again stabilized, things calmed down. But she commented, "I'm so glad I don't live in California." Yes, I think that would be a bad idea, given how much she really, really hated that earthquake.
5.9. Centered in Virginia. You don't experience that every day.