[1]ZHAO Yufei,YUAN Jiehao,ZHAN Zhijia,et al.Review on Seismomagnetic Observation and Research in China in the 20th Century[J].Journal of Seismological Research,2017,40(03):422-430.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
40
Number of periods:
2017 03
Page number:
422-430
Column:
流动地磁专栏
Public date:
2017-07-20
- Title:
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Review on Seismomagnetic Observation and Research in China in the 20th Century
- Author(s):
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ZHAO Yufei1; YUAN Jiehao2; ZHAN Zhijia2; CHEN Bin2; GAO Jintian2
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(1.Yunnan Earthquake Agency,Kunming 650224,Yunnan,China)(2.Institute of Geophysics,China Earthquake Administration,Beijing 100081,China)
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- Keywords:
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geomagnetic survey; geomagnetic total intensity; seismomagnetic precursor; tectonomagnetism; lithospheric magnetic anomalous change; earthquake prediction
- CLC:
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P318
- DOI:
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- Abstract:
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By analyzing the existing seismomagnetic data around the world,we achieve the results that for M5.0 ~ M7.8 earthquakes,at the measuring point and station of 3 ~ 246 km from the epicenter,the seismomagnetic information of geomagnetic total intensity and vertical component was observed,and the intensity of the seismomagnetic information reached 8~20 nT,and the precursory time is between 20 days and two years.This article describes and discusses the 20th century China earthquake geomagnetic observation and research,and analyzes the Tangshan M7.8,Haicheng M7.3 magnetic anomalies,illustrating the significance of seismic precursor information to explore earthquake prediction.Also combined with the engineering blasting,underground nuclear test,Miyun reservoir,and Zijingguan fracture experiment of geomagnetic observation experiments,we simulate the process of earthquake nucleation magnetism performance characteristics of each stage.And these experimental researches on magnetic observations and earthquake are also very meaningful.