基于地震烈度速报ShakeMap的建筑物灾害快速评估系统研制

Development of a Rapid Assessment System for Building Damage Based on ShakeMap

针对破坏性地震后迫切需要在最短的时间内(<1h)快速科学地给出建筑物震害分布及直接经济损失预估的现实需求,以南北地震带已有公里格网建筑、经济等数据为依托,结合地震台网产出的自动速报结果和地震烈度速报图件ShakeMap,研制了一套基于公里格网经济承载体数据和ArcGIS软件的自动化震后建筑物灾害快速评估系统。测试结果表明,对于M7.0左右地震,该系统可在震后15分钟内产出灾区建筑物分布图、建筑物破坏状态图(轻微破坏、中等破坏、严重破坏和毁坏)和建筑物直接经济损失分布,为快速、精准预估灾区建筑物震害和经济损失提供基础资料和科技支撑。

In response to the urgent need to present the distribution of building damage and direct economic loss estimation in the shortest time(<1 h)after a destructive earthquake,we developed an automatic system for rapidly assessing post-earthquake building damage using kilometer-grid economic carrier data and ArcGIS software.This system is based on the existing kilometer-grid of building and economic data in the north-south seismic zone,combined with the automatic quick report results and the rapid earthquake intensity report map,ShakeMap,from the seismic network.The test results show that for an earthquake of~M7.0,the system can automatically output building distribution map in the disaster area,building damage status maps(slightly damaged,moderately damaged,severely damaged and destroyed)and the distribution of direct economic losses of buildings within 15 minutes after the event origin.This can provide basic information and scientific and technological support for rapid and accurate valuation of earthquake damages and economic losses of buildings in disaster areas.