End-Users Needs in Seismic Hazard Analysis SCEC Interface Workshop – 22 October 2003, Oakland End-Users Needs in Seismic Hazard Analysis Amr S. Elnashai MAE Center Acting Director Civil and Environmental Engineering Department University of Illinois at Urbana-Champaign

End-Users Requirements Hazard Maps for use in Seismic Loss Assessment Ground Effects – inelastic site response, liquefaction Topographical Effects – Hills, ridges, steep slopes Background magnitude-distance pairs for scenario analysis Spectral ordinates maps for a wide range of periods Spectral ordinates maps with soil-structure interaction Inelastic spectral ordinates maps Guidelines on deterministic seismic hazard analysis Many of the above for vertical earthquake motion All of the above for mid-western regions