[1]YANG Xiaoxia,WANG Xiaoling,LI Yuli,et al.Analysis on Anomaly Characteristics of Underground Fluid before Qinghai Menyuan MS6.4 Earthquake in 2016[J].Journal of Seismological Research,2016,39(增刊):89-94.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
39
Number of periods:
2016 Supplementary
Page number:
89-94
Column:
Public date:
2016-11-20
- Title:
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Analysis on Anomaly Characteristics of Underground Fluid before Qinghai Menyuan MS6.4 Earthquake in 2016
- Author(s):
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YANG Xiaoxia; WANG Xiaoling; LI Yuli; SUN Chunling; SUN Li
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Earthquake Administration of Qinghai Province,Xining 810001,Qinghai,China
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- Keywords:
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Menyuan MS6.4 earthquake; underground fluid; precursory anomaly
- CLC:
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P315.723
- DOI:
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- Abstract:
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There appeared precursor anomaly of underground fluid in Qinghai area before Qinghai Menyuan MS6.4 earthquake on Jan.21,2016. The anomaly type of underground fluid can be divided into two types. The first is wave anomaly,and it mainly presented as rate change. The second is annual distortion anomaly,whose characteristic mainly presented as broken yearly change law. The appearance time of mid-short term anomalies before the earthquake is disproportional to epicenter distance.