Stan goes for anything mag 4 and over. 7 day windows.

Yes, his circles can be huge. I seem to recall when I did my analysis of him years ago that I measured some of them in excess of 3000km diameter. You plop a circle that big for a week somewhere on the Ring of Fire, you are almost guaranteed to see at least a magnitude 4 quake.

http://www.skywise711.com/quakes/EQDB/article/appendix2.html

Just reviewed my analysis... I apparently found some circles over 4000km across!!!

And then, he's also known for using "close enough". There was a case where he claimed a hit for a quake in Pakistan that would have required the nearest prediction circle to more than double in size to include the epicenter.

Brian