[1]FENG Lili,LI Xia.Research on Lithospheric Magnetic Field Feature of Lenglongling Fault and its Relation with Qinghai Menyuan MS6.4 Earthquake in 2016[J].Journal of Seismological Research,2016,39(增刊):117-121.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
39
Number of periods:
2016 Supplementary
Page number:
117-121
Column:
Public date:
2016-11-20
- Title:
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Research on Lithospheric Magnetic Field Feature of Lenglongling Fault and its Relation with Qinghai Menyuan MS6.4 Earthquake in 2016
- Author(s):
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FENG Lili; LI Xia
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Earthquake Administration of Qinghai Province,Xining 810001,Qinghai,China
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- Keywords:
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Lenglongling Fault; magnetic anomaly; Menyuan MS6.4 earthquake; wavelet decomposition
- CLC:
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P315.721
- DOI:
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- Abstract:
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After Menyuan MS6.4 earthquake on Jan.21,2016,the lithospheric magnetic field feature of Lenglongling Fault and its adjacent area where the epicenter located has been decomposed by using DB5 wavelet basis,and the wavelet details of each order and wavelet approximation result are also analyzed. Then based on the wavelet decomposition results,we study the relationship of lithospheric magnetic field with earthquake. The wavelet analysis result shows that the distribution of magnetic anomaly in the shallow layer and middle layer is non-uniform. The epicenter located in the transit area of positive and negative value of ΔZ. The magnetic anomaly in the bottom layer is relatively uniform and wide,and the area nearby the epicenter has no obvious boundary characteristic.