Here's what I posted here in "US Quake Predictions" awhile back, the part about Idaho, Wyoming and Utah is half way down the thread.

6/17/10:

Awhile back, I had a dream of the US map with large red quake markers in SE Alaska, Montana and central California. There were several blue and yellow mid-sized quakes in the Wyoming/Utah/Idaho region as well. I've been watching the USGS site and noticed there was a quake in Alaska at that general location. It appeared that the Montana quake was preceded by several mid-sized quakes which were removed by the USGS and the location was indicated by a north-south rectangle that one sees when clicking on that region. The large quakes were north towards the Canadian border.

Thread: US Quake Predictions