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EARTHQUAKE ›› 2017, Vol. 37 ›› Issue (1): 121-133.

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Application of GF-2 and ZY-3 Satellite Data in Quantitative Research of Active Fault: A Case Study of the South Hasi Mountain Fault Zone

LU Heng-xin1,XU Yue-ren1,CHEN Li-ze1,ZHANG Xue-min1, SHEN Xu-hui1,2,CUI Jing2   

  1. 1.Institute of Earthquake Science, CEA, Beijing 100036, China;
    2.Institute of Crustal Dynamics, CEA, Beijing 100085, China
  • Received:2016-05-20 Published:2019-08-14

Abstract: Images from GF-2 and ZY-3 satellites were used in a case study of south Hasi mountain fault zone to study the fault with visual integrated interpretation and three-dimensional interpretation, and combined with field investigation. We analyzed the application potential of domestic high-resolution satellite data in quantitative research of active fault. GF-2 image can clearly show fault crap, stream displaced by fault and co-seismic ruptures. According to the interpretation result, the south Hasi Mountain fault zone can be divided into three segments, the normal-strike Huangliangtan-Shaconggou segment, the left-lateral strike Shaconggou-Yellow river segment, and the left-lateral strike Yellow river-Shenjiazhuang segment. The interpretation along the fault shows an improvement of extracting formation boundary, tectonic geomorphology and other information. The minimum displacement we have interpreted is about 4.3 m, which indicates the co-seismic displacement of the 1920 Haiyuan earthquake, and the maximum displacement of 333.5 m indicates the continuous movement of fault since the Late Quaternary. Our research shows that domestic high-resolution satellite data has a great potential in quantitative research of active fault.

Key words: GF-2, ZY-3 stereo image pair, Remote sensing interpretation, Active fault, Haiyuan Fault Zone, South Hasi Mountain fault zone

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