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The Bajool earthquake sequence of 1991, and implications for the seismicity of central Queensland

 

作者: B. M. McKavanagh,   B. W. Boreham,   R. J. Cuthbertson,   K. F. McCue,   W. V. Cooper,  

 

期刊: Australian Journal of Earth Sciences  (Taylor Available online 1993)
卷期: Volume 40, issue 5  

页码: 455-460

 

ISSN:0812-0099

 

年代: 1993

 

DOI:10.1080/08120099308728096

 

出版商: Taylor & Francis Group

 

关键词: earthquakes;intraplate seismicity;regional seismograph network;seismic intensities;thrust fault

 

数据来源: Taylor

 

摘要:

The township of Bajool, situated 30 km south of Rockhampton, Queensland, experienced two minor earthquakes, each of Richter magnitude 2.9 on 10 June 1991. The foci were located 7 km north of Bajool, at a depth of less than 10 km. The felt intensity in Bajool was generally IV‐V, with minor damage occurring to several houses. There were several foreshocks and four aftershocks. The events may represent reactivation of a thrust fault, close to its junction with an inferred transform fault, the Fitzroy River Fault. These events demonstrate that the quiescence of central Queensland is apparent only, and that the recently installed University of Central Queensland Regional Network will provide a useful contribution to the understanding of earthquakes occurring along a passive continental margin.

 

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