Hi Skywise;

It started out as a 3d count and plot program which looked nice at 1 degree squares. Then I decided to see if I had enough RAM to hold the entire NEIC database.

Turns out that I could store about 1200 quakes per square with the 700+ MB I have. Not enough. It would work if I could have variable length arrays.

But there's no great advantage to having it all in memory unless you are asking multiple questions. Then it might be better to read once. 548,000 quakes take a while to read.

Roger