Abstract
AbstractHazards U.S. Multi-Hazard Maintenance Release 4 (HAZUS-MH MR4) is damage- and loss-estimation software developed by FEMA to estimate potential losses from natural disasters. Federal, state, regional, and local governments use the HAZUS earthquake model for earthquake risk mitigation, preparedness, response, and recovery planning. This paper examines earthquake model input parameters for earthquake source, including epicenter location, hypocentral depth, magnitude, and fault-plane dimensions, orientation, and dip, as well as geologic site conditions, to show how modifying the user-supplied settings affect ground-motion analysis, seismic risk assessment, and earthquake loss estimates. HAZUS calculates ground motion and resulting ground failure to estimate direct physical damage for general building stock, essential facilities, and lifelines, including transportation systems and utility systems. Earthquake losses in HAZUS are expressed in building-damage, economic, and social terms; this paper focuse...
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