TY - RPRT TI - Risk-targeted versus current seismic design maps for the conterminous United States AU - Nicolas Luco AU - Bruce R. Ellingwood AU - Ronald O. Hamburger AU - John D. Hooper AU - Jeffrey K. Kimball AU - Charles A. Kircher PY - 2007 UR - https://pubs.usgs.gov/publication/70045059 ID - 70045059 ER -