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DOI | 10.1126/science.aaw7354 |
INDUCED SEISMICITY Fluid-induced aseismic fault slip outpaces pore-fluid migration | |
Bhattacharya, Pathikrit1,2; Viesca, Robert C.1 | |
2019-05-03 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2019 |
卷号 | 364期号:6439页码:464-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA; India |
英文摘要 | Earthquake swarms attributed to subsurface fluid injection are usually assumed to occur on faults destabilized by increased pore-fluid pressures. However, fluid injection could also activate aseismic slip, which might outpace pore-fluid migration and transmit earthquake-triggering stress changes beyond the fluid-pressurized region. We tested this theoretical prediction against data derived from fluid-injection experiments that activated and measured slow, aseismic slip on preexisting, shallow faults. We found that the pore pressure and slip history imply a fault whose strength is the product of a slip-weakening friction coefficient and the local effective normal stress. Using a coupled shear-rupture model, we derived constraints on the hydromechanical parameters of the actively deforming fault. The inferred aseismic rupture front propagates faster and to larger distances than the diffusion of pressurized pore fluid. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000466809600029 |
WOS关键词 | CHAIN MONTE-CARLO ; PERMEABILITY ; INJECTION ; FRACTURE ; EARTHQUAKES ; STRESS ; EVOLUTION ; INCREASE ; ROCK |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
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/201342 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Tufts Univ, Dept Civil & Environm Engn, Medford, MA 02155 USA; 2.Indian Inst Technol Bhubaneswar, Sch Earth Ocean & Climate Sci, Argul 752050, Odisha, India |
推荐引用方式 GB/T 7714 | Bhattacharya, Pathikrit,Viesca, Robert C.. INDUCED SEISMICITY Fluid-induced aseismic fault slip outpaces pore-fluid migration[J]. SCIENCE,2019,364(6439):464-+. |
APA | Bhattacharya, Pathikrit,&Viesca, Robert C..(2019).INDUCED SEISMICITY Fluid-induced aseismic fault slip outpaces pore-fluid migration.SCIENCE,364(6439),464-+. |
MLA | Bhattacharya, Pathikrit,et al."INDUCED SEISMICITY Fluid-induced aseismic fault slip outpaces pore-fluid migration".SCIENCE 364.6439(2019):464-+. |
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