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EARTHQUAKE ›› 2009, Vol. 29 ›› Issue (1): 174-181.

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Primary Quantitative Study on Earthquake Damage Extracted from Remote Sensing Imagery A Case Study of Doujiangyan due to the Wenchuan M8.0 Earthquake

WANG Xiao-qing1, WANG Long1, ZHANG Xi-hai2, DING Xiang1, QIU Hu3, DONG Yan-fang1, DOU Ai-xia1, ZHANG Fei-yu1, LIU Zai-tao4   

  1. 1. Institute of Earthquake Science, China Earthquake Administration, Beijing 100036, China;
    2. Seismological Bureau of Jiangsu Province, Nanjing 210014, China;
    3. Seismological Bureau of Tianjin, Tianjin 300201, China;
    4. China Earthquake Network Center, Beijing 100045, China
  • Received:2008-10-15 Revised:2008-10-23 Online:2009-01-31 Published:2021-10-15

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Abstract: The fast developing remote sensing techniques play more and more important roles in earthquake emergency, disaster survey and losses estimation. Because of the lack of quantitative study on seismic damage based on remote sensing, the practicality of remote sensing in the seismic disaster management was usually questioned. The paper introduces the idea of essential quantitative study,the concept of remote sensing seismic damage index and analysis models, which are applied to the case of Doujiangyan City, Sichuan Province , destroyed by the 12 may 2008 Wenchuan M8.0 earthquake. The primary results show that there exists an obvious relation between the seismic damage index of buildings obtained from the high resolution satellite or aerial remote sensing imagery with the seismic damage index or the building collapse ratio obtained through ground survey, and that the quantitative study on seismic damage based on remote sensing will provide a effective means and tool for the seismic damage survey and losses estimation.

Key words: Seismic damage index, Remote sensing, Wenchuan earthquake, Quantitative Study

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