A COMPREHENSIVE SEISMIC VULNERABILITY AND LOSS EVALUATION OF THE STATE OF SOUTH CAROLINA USING HAZUS: PART Ⅰ OVERVIEW AND RESULTS

摘要

A comprehensive seismic risk assessment of the State of South Carolina was performed considering four different earthquake scenarios: an 1886 moment magnitude (M) 7.3 "Charleston-like" earthquake, M 6.3 and M 5.3 events also from the Charleston seismic source, and an M 5.0 earthquake in Columbia. A primary objective of this project was to generate credible earthquake losses that could provide a planning baseline for coordination, capability development, training and strategic planning for the South Carolina Emergency Preparedness Division (SCEPD). The results from this study include forecasts of building damage, functionality of lifeline components, casualties, shelter demand, induced losses such as fires and debris, and direct economic losses, which include structural and nonstructural damage, costs of relocation, losses to business inventory, capital-related losses, income losses, and rental losses. A future repeat of the 1886 M 7.3 earthquake could result in nearly 900 deaths, more than 30,000 injuries, and a total economic loss of $20 billion. Schools, hospitals, fire stations, ordinary buildings, and bridges will suffer significant damage due to the general lack of seismic design in the State.