Hello Roger,

Just wondering if you could do a 500 Km circular around Salt Lake. That way we could see if there is any significant difference in the Rockys. Or maybe something around Vail or Glenwood. I'm thinking crustal depths. Deep versus thin. Or continental versus oceanic. I did some syzygy runs on that area, and there are not very many 5+ quakes. Not sure if the sample size would be large enough to draw a conclusion.

Glen