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DOI | 10.1029/2020GL087142 |
Imbricated Aseismic Slip and Fluid Diffusion Drive a Seismic Swarm in the Corinth Gulf, Greece | |
De Barros, Louis1; Cappa, Frederic1,2; Deschamps, Anne1; Dublanehet, Pierre3 | |
2020-05-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:9 |
文章类型 | Article |
语种 | 英语 |
国家 | France |
英文摘要 | The primary processes driving seismic swarms are still under debate. Here, we study the temporal evolution of a seismic swarm that occurred over a 10-day period in October 2015 in the extensional rift of the Corinth Gulf (Greece) using high-resolution earthquakes relocations. The seismicity radially migrates on a normal fault at a fluid diffusion velocity (similar to 125 m/day). However, this migration occurs intermittently, with periods of fast expansion (2 to 10 km/day) during short seismic bursts alternating with quiescent periods. Moreover, the growing phases of the swarm illuminate a high number of repeaters. The swarm migration is likely the results of a combination of multiple driving processes. Fluid upflow in the fault may induce aseismic slip episodes, separated by phases of fluid pressure build-up. The stress perturbation due to aseismic slip may activate small asperities that produce bursts of seismicity during the most intense phases of the swarm. |
英文关键词 | seismic swarm aseismic slip repeaters seismic migration fluid diffusion Corinth Gulf |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000536639500045 |
WOS关键词 | EARTHQUAKE SWARM ; SOURCE PARAMETERS ; STRESS TRANSFER ; FAULT SLIP ; RIFT ; INJECTION ; DEFORMATION ; EVOLUTION ; SPECTRA |
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/279925 |
专题 | 气候变化 |
作者单位 | 1.Univ Cote dAzur, Observ Cote dAzur, Geoazur, CNRS,IRD, Sophia Antipolis, France; 2.Inst Univ France, Paris, France; 3.PSL Res Univ, MINES ParisTech, Paris, France |
推荐引用方式 GB/T 7714 | De Barros, Louis,Cappa, Frederic,Deschamps, Anne,et al. Imbricated Aseismic Slip and Fluid Diffusion Drive a Seismic Swarm in the Corinth Gulf, Greece[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(9). |
APA | De Barros, Louis,Cappa, Frederic,Deschamps, Anne,&Dublanehet, Pierre.(2020).Imbricated Aseismic Slip and Fluid Diffusion Drive a Seismic Swarm in the Corinth Gulf, Greece.GEOPHYSICAL RESEARCH LETTERS,47(9). |
MLA | De Barros, Louis,et al."Imbricated Aseismic Slip and Fluid Diffusion Drive a Seismic Swarm in the Corinth Gulf, Greece".GEOPHYSICAL RESEARCH LETTERS 47.9(2020). |
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