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潮汐应力对发震断层作用的统计分析
Alternative TitleStatistical analysis of tidal stress effect on seismic faults
吴小平1; 冒蔚2; 黄雍3; 蒋骏4
Source Publication地球物理学报(CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION)
1999
Volume42Issue:S1Pages:65-74
ClassificationP315.1
Contribution Rank第2完成单位
Indexed BySCI
Keyword潮汐应力 增压型 减压型 促滑作用 发震断层
Abstract计算了中国及邻区1069个地震震源处沿主压应力P轴和主张力T轴方向的潮汐应力分量,并分析了这些量对发震断层的作用方式,按纬度区域统计了与潮汐应力促滑作用有关的发震断层类型以及它们与潮汐应力作用方式的关系,得到了如下结论:与潮汐应力促滑作用有关的发震断层数的比例随区域纬度增加有减小趋势。其中,走滑型断层的比例在低纬区较大,而倾滑斜滑型断层的比例在中高纬度区较大;对发震断层有促滑作用的潮汐应力作用方式分增压型和减压型。对整个统计区域而言,与增压型潮汐应力促滑作用有关的发震断层数比例大于与减压型潮汐应力促滑作用有关的发震断层;对不同的纬度区域,不同的潮汐应力作用方式与之促滑的断层类型也有不同的分布特征。
Other AbstractTidal stress components along P axis and T axis of 1069 earthquake focuses distributed in China and its neighbor areas are calculated. Partterns of tidal stress effect on the earthquake faults are analyzed. Statistics of seismic fault types related to slip-accelerating effect of tidal stress and relationship between the types and the patterns are made for various latitude areas. The following features are obtained: Proportion of the number of seismic faults related to the slip-accelerating effect of tidal stress has decreasing trend with latitudinal rising. Among them, proportion of the strike-slip faults in low latitude area is comparatively large but that of the dip-oblique-slip faults in middle high latitude area is comparatively large. The patterns of tidal stress effect of slip acceleration are classified into compression-adding type and compression-reducing type. For the whole area, proportion of the number of seismic faults affected by the compression-adding type is larger than that affected by the compression-reducing type. For different latitude areas, various patterns of tidal stress effects and relevant types of seismic faults have various distributing features.
Language中文
Subject AreaGeochemistry & Geophysics
Subtype期刊论文
ISSN0001-5733
WOS IDWOS:000089752200010
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS KeywordEARTHQUAKE SWARMS ; SOLID EARTH ; LUNAR
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6669
Collection天体测量及应用研究组
Affiliation1.云南大学地球科学系,昆明 650091
2.中国科学院云南天文台,昆明 650011
3.云南省地震局,昆明 650041
4.中国地震局地震研究所,武汉 430071
Recommended Citation
GB/T 7714
吴小平,冒蔚,黄雍,等. 潮汐应力对发震断层作用的统计分析[J]. 地球物理学报(CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION),1999,42(S1):65-74.
APA 吴小平,冒蔚,黄雍,&蒋骏.(1999).潮汐应力对发震断层作用的统计分析.地球物理学报(CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION),42(S1),65-74.
MLA 吴小平,et al."潮汐应力对发震断层作用的统计分析".地球物理学报(CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION) 42.S1(1999):65-74.
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