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[1]XIN Hai-liang,ZHANG Yuan-sheng,GUO Xiao,et al.Accurate Location of the 2003 Minle-Shandan M6.1,5.8 Earthquake Sequence[J].Journal of Seismological Research,2008,31(02):129-133.

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Accurate Location of the 2003 Minle-Shandan M6.1,5.8 Earthquake Sequence

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 31 Number of periods: 2008 02 Page number: 129-133 Column: Public date: 2008-02-23

Title:: Accurate Location of the 2003 Minle-Shandan M6.1,5.8 Earthquake Sequence

Author(s):: XIN Hai-liang¹; ZHANG Yuan-sheng¹; 2; GUO Xiao¹; 2; LI Wen¹; (1.Lanzhou Institute of Seismology,CEA,Lanzhou 730000,Gansu,China)(2.Lanzhou Base of Institute of Earthquake Science,CEA,Lanzhou 730000,Gansu,China)

Keywords:: Minle-Shandan; accurate earthquake location; Genetic algorithm; seismogenic structure

CLC:: P315.2

DOI:: -

Abstract:: Two earthquakes(M6.1,5.8)occurred in Minle-Shandan,Gansu,on Oct.25,2003.In order to obtain the accurate locations of the earthquake sequence,we used Genetic Algorithm to relocate it,and discussed its seismogenic structure combining with geologic data.The result shows that the sequence distributes centrally,and two mainshocks distribute along the Minle-Yongchang concealed fault.The focal depths range mainly from 10 km to 15 km,the average 12.1 km.The seismogenic structure is the thrust of the Dahuangshan frontal uplifts constituted by the Minle-Yongchang concealed fault and Tongzibahe concealed fault,and the west segment of the NNW-trending Minle-Yongchang concealed fault is main seismogenic structure.

References:: -

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Last Update: 2008-02-23