Hello Roger,

"First I wrote a program to find them. A cross configuration is defined as an arrangement wherein 4 bodies are at 0, 90, 180 and 270 degrees from one another, within a predefined limit."

Roger, are you talking about planets? The stars are pretty much set in place. I can't figure out why Mars passing through a given constellation would have anything to do with earthquakes on Earth. If you could define "cross" that would help me to understand what you are looking at.

thanx,
Glen