Suggested citation and version history for Kayen, R.E., and Barnhardt, W.A., 2007, Seismic stability of the Duwamish River delta, Seattle, Washington: U.S. Geological Survey Professional Paper 1661-E, 11 p. [http://pubs.usgs.gov/pp/pp1661e/]. Version 1.0 November 2, 2007 Released online at http://pubs.usgs.gov/pp/pp1661e/ October, 2007 Initial release in print form