text:  just because everything is like a bowl of jelly. And there are so many additional fault lines that can be triggered into action. That's one thing that geologists used to sort of laugh at. They said, oh, earthquakes are all independent events, except for the occasional foreshock and a lot of aftershocks, the big quakes. We recognize that. But a quake in Southern California has nothing to do with the big one in Northern California a week later.