[1]HAN Xiao-ming,LIU Fang,LIU Wen-guang.Analysis of the Abnormity of Seismometry Index before Balinzuoqi-Alukeerqinqi MS5.9 Earthquake in Inner Mongolia Autonomous Region in 2003[J].Journal of Seismological Research,2010,33(03):247-252.
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
33
Number of periods:
2010 03
Page number:
247-252
Column:
Public date:
2010-03-01
- Title:
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Analysis of the Abnormity of Seismometry Index before Balinzuoqi-Alukeerqinqi MS5.9 Earthquake in Inner Mongolia Autonomous Region in 2003
- Author(s):
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HAN Xiao-ming1; LIU Fang1; LIU Wen-guang2
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(1.Earthquake Administration of Inner Mongolia Autonomous Region,Huhhot 010010,Inner Mongolia,China)(2.Wujiahe Seismic Station,Earthquake Administration of Inner Mongolia Autonomous Region,Linhe 015000,Inner Mongolia,China)
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- Keywords:
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MS5.9 earthquake; b-value; velocity ratio(VP/VS); seismic spatial correlation length; Inner Mongolia
- CLC:
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P315.75
- DOI:
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- Abstract:
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On August 16,2003,an MS5.9 earthquake occurred in the bordering area of Balinzuoqi and Alukeerqinqi,Inner Mongolia Autonomous Region.We analyze the seismic activity and the distribution of earthquake disaster on the basis of the seismological settings in the earthquake area.By analyzing the variation of b-value,velocity ratio(VP/VS)and correlation length before the earthquake event,we discuss the evolvement of underground media in the hypocentral area before earthquake event and preliminarily deduce the seismogenic process of the earthquake.The variation regularity of these three indexes can serve for forecasting the future medium-and strong-earthquakes in this region.