MAKE pal Hans writes “I live near Cloquet Minnesota, a few years a go I helped set up for a convention of Geologists in Duluth Minnesota. I found out then that there is a fault line that runs under Cloquet and along a line south of Lake Superior. Although I don’t know of any Earth Quakes in this area this project is inexpensive enough that I think I will build one. I would be interesting to see something like the SETI @ home project so that data from others could be combined and analyzed”. Link.