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DOI | 10.1029/2019GL084436 |
The Moment Duration Scaling Relation for Slow Rupture Arises From Transient Rupture Speeds | |
Thogersen, Kjetil1,2; Sveinsson, Henrik Andersen1,3; Scheibert, Julien4; Renard, Francois1,2,5; Malthe-Sorenssen, Anders1,3 | |
2019-11-19 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:22页码:12805-12814 |
文章类型 | Article |
语种 | 英语 |
国家 | Norway; France |
英文摘要 | The relation between seismic moment and earthquake duration for slow rupture follows a different power law exponent than subshear rupture. The origin of this difference in exponents remains unclear. Here, we introduce a minimal one-dimensional Burridge-Knopoff model which contains slow, subshear, and supershear rupture and demonstrate that different power law exponents occur because the rupture speed of slow events contains long-lived transients. Our findings suggest that there exists a continuum of slip modes between the slow and fast slip end-members but that the natural selection of stress on faults can cause less frequent events in the intermediate range. We find that slow events on one-dimensional faults follow M over bar 0,slow,1D proportional to T over bar 0.63 with transition to M over bar 0,slow,1D proportional to T over bar 32 for longer systems or larger prestress, while the subshear events follow M over bar 0,sub-shear,1D proportional to T over bar 2. The model also predicts a supershear scaling relation M over bar 0,super-shear,1D proportional to T over bar 3. Under the assumption of radial symmetry, the generalization to two-dimensional fault planes compares well with observations. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000497297200001 |
WOS关键词 | SLIP EVENTS |
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/225043 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Univ Oslo, NJORD Ctr, Phys Geol Proc, Oslo, Norway; 2.Univ Oslo, Dept Geosci, Oslo, Norway; 3.Univ Oslo, Dept Phys, Oslo, Norway; 4.Univ Lyon, Ecole Cent Lyon, LTDS, ENISE,ENTPE,CNRS,UMR 5513, F-69134 Ecully, France; 5.Univ Savoie Mt Blanc, Univ Grenoble Alpes, CNRS, IRD,IFSTTAR,ISTerre, Grenoble, France |
推荐引用方式 GB/T 7714 | Thogersen, Kjetil,Sveinsson, Henrik Andersen,Scheibert, Julien,et al. The Moment Duration Scaling Relation for Slow Rupture Arises From Transient Rupture Speeds[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(22):12805-12814. |
APA | Thogersen, Kjetil,Sveinsson, Henrik Andersen,Scheibert, Julien,Renard, Francois,&Malthe-Sorenssen, Anders.(2019).The Moment Duration Scaling Relation for Slow Rupture Arises From Transient Rupture Speeds.GEOPHYSICAL RESEARCH LETTERS,46(22),12805-12814. |
MLA | Thogersen, Kjetil,et al."The Moment Duration Scaling Relation for Slow Rupture Arises From Transient Rupture Speeds".GEOPHYSICAL RESEARCH LETTERS 46.22(2019):12805-12814. |
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