I'll try to keep further discussion of the animation project to this thread, to keep the board from getting cluttered.

Anyway, I've run into an interesting problem. This quake's aftershock sequence was so vigorous that I'm having to run the simulation really slow in order to keep the map from turning into one massive blob of overlapping dots.

BTW, the way I'm plotting the dots is as expanding circles form the epicenter. As the circle expands it also fades out.

Shown here is a sample frame right after the main shock. This represents the most cluttered time. In this example it doesn't look to bad and doesn't stay this way for very long.

But to get to this point I slowed it down so that one frame represents 7.2 minutes. At that rate, a 45 day sequence fills 5 minutes of video. Also, I'm only allowing the 'dots' to last 4 frames. That goes by pretty quickly at 30 frames per second.

Yes, it's a big image. Full 1920x1080 HD. The posted video won't be that large. This is just me showing off.

Brian