Ooh, yellowstone earthquakes...

[dunkel_licht]

There were a series of earthquakes with yellowstone as the epicenter... I could swear there was a super-volcano somewhere around there... oh, yeah, I found it.

http://people.uwec.edu/ERICKSKM/hazards.html

Woot, Portland is within the pretty much instantly vaporized by searing hot ash zone. Go us. :D