RELOCATION OF GUOJIABA EARTHQUAKE SEQUENCEBY USING DOUBLE DIFFERENCE LOCATION ALGORITHM
Wei Guichun;Chen Junhua;Liao Wulin; and Zhang Wenjuan
Institute of Seismology, CEA, Wuhan 430071
Abstract The earthquake swarms around in Guojiaba \%M\%\-L3.8 earthquake epicenter in Three Gorges region were relocated with the double difference location method and 113 earthquakes location results were obtained. It is found that these earthquakes are concentrated in the meizoseismal area. The direction appears north by west and depth is about 7 km. The research result shows the location accuracy with this method is better than that given before and many improvements have been mode in following aspects,minishing residual error, evaluating error and controlling epicenter distribution and focal depth
Key words ：
Guojiaba aera
earthquake sequence
double difference location method
relocation
meizoseismal area
Received: 01 January 1900
Corresponding Authors:
Wei Guichun
Cite this article:
Wei Guichun,Chen Junhua,Liao Wulin et al. RELOCATION OF GUOJIABA EARTHQUAKE SEQUENCEBY USING DOUBLE DIFFERENCE LOCATION ALGORITHM[J]. , 2009, 29(6): 56-59.
Wei Guichun,Chen Junhua,Liao Wulin et al. RELOCATION OF GUOJIABA EARTHQUAKE SEQUENCEBY USING DOUBLE DIFFERENCE LOCATION ALGORITHM[J]. jgg, 2009, 29(6): 56-59.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2009/V29/I6/56
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