Fast Assessment on Residential Building Loss and Population Displacement after the Great Wenchuan Earthquake Disaster

Abstract eng:
Based on the statistical data of historical seismic disasters, this paper presents the damage matrixes of residential building of different structure type in Sichuan, Shanxi and Gansu Provinces. By using the Wenchuan Earthquake Intensity Chart by China Earthquake Administration and the social economy statistical data of the three provinces, such as the population, per-capita living space, the proportion of residential building with different structure type, a post-earthquake fast loss assessment has been implemented and preliminary validated through a post-hoc comparison. The estimated residential building damage, population displacement and residential economic loss were provided to help policy-making during the disaster relief. We argue that fast development and distribution of earthquake intensity map plays a key role for quick loss estimation. In addition, full and comprehensive communication among experts from different disciplines is also of vital importance.

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