TY - RPRT TI - Implementation of the SSHAC Guidelines for Level 3 and 4 PSHAs - Experience gained from actual applications AU - Thomas C. Hanks AU - Norm A. Abrahamson AU - David M. Boore AU - Kevin J. Coppersmith AU - Nichole E. Knepprath PY - 2009 DO - 10.3133/ofr20091093 UR - https://pubs.usgs.gov/publication/ofr20091093 ID - ofr20091093 ER -