This is what I've been saying for years. The mapped faults that the busgus loves are the losers of the earthquake world. No earthquake would be caught dead riding them. The real stuff is deep and can only be imaged with seismic reflection. Barring that, you can get hints from topography. The footwall is solid rock and forms a line, the hanging wall is broken up and most likely eroded away. These faults cannot be 'mapped' on the surface.
This is the perfect example, but we have a lot of this around Toronto, and the whole ENA. Anyway, I'm not after those 'surface fault' guys, they'll soon be gone by the hand of my friend - Mr. DumpyTrumpy. :)
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