The one which geologists at the University of Washington seem to be particularly concerned with is "the Cascadia Subduction Zone, a 1000 km long thrust fault which is the convergent boundary between the Juan de Fuca and North American plates and is the most extensive fault in the Pacific Northwest area. It surfaces about 50 miles offshore along the coasts of British Columbia, Washington, Oregon and northern California. No historic earthquakes have been directly recorded from this source zone. According to recent research, an earthquake estimated to be as large as 8.0 to 9.0 occurred in this zone in January of 1700."

This sucker is a mirror image of the fault off the coast of northern Japan.

But the whole Pacific Northwest area, including under Puget Sound itself, is like a spiderwebbed piece of plate glass.

(Wotthehell am I doin' here!!??)

Don Firth

P. S. Dandy location for a bunch of nuclear power plants, eh?