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DOI | 10.1002/2016GL072168 |
Seismogenic width controls aspect ratios of earthquake ruptures | |
Weng, Huihui; Yang, Hongfeng | |
2017-03-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | We investigate the effect of seismogenic width on aspect ratios of earthquake ruptures by using numerical simulations of strike-slip faulting and an energy balance criterion near rupture tips. If the seismogenic width is smaller than a critical value, then ruptures cannot break the entire fault, regardless of the size of the nucleation zone. The seismic moments of these self-arresting ruptures increase with the nucleation size, forming nucleation-related events. The aspect ratios increase with the seismogenic width but are smaller than 8. In contrast, ruptures become breakaway and tend to have high aspect ratios (>8) if the seismogenic width is sufficiently large. But the critical nucleation size is larger than the theoretical estimate for an unbounded fault. The eventual seismic moments of breakaway ruptures do not depend on the nucleation size. Our results suggest that estimating final earthquake magnitude from the nucleation phase may only be plausible on faults with small seismogenic width. |
英文关键词 | bounded fault seismogenic width self-arresting rupture breakaway rupture aspect ratio seismic moment scaling |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399762700014 |
WOS关键词 | STRIKE-SLIP EARTHQUAKES ; SAN-JACINTO FAULT ; SCALING RELATIONS ; NUCLEATION ; CALIFORNIA ; LENGTH ; ZONES ; VELOCITY ; DISPLACEMENT ; DEFORMATION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26294 |
专题 | 气候变化 |
作者单位 | Chinese Univ Hong Kong, Earth Syst Sci Programme, Fac Sci, Sha Tin, Hong Kong, Peoples R China |
推荐引用方式 GB/T 7714 | Weng, Huihui,Yang, Hongfeng. Seismogenic width controls aspect ratios of earthquake ruptures[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(6). |
APA | Weng, Huihui,&Yang, Hongfeng.(2017).Seismogenic width controls aspect ratios of earthquake ruptures.GEOPHYSICAL RESEARCH LETTERS,44(6). |
MLA | Weng, Huihui,et al."Seismogenic width controls aspect ratios of earthquake ruptures".GEOPHYSICAL RESEARCH LETTERS 44.6(2017). |
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