气候变化领域集成服务门户(CCPortal): Role of Fluid Injection on Earthquake Size in Dynamic Rupture Simulations on Rough Faults

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DOI	10.1029/2020GL088377
	Role of Fluid Injection on Earthquake Size in Dynamic Rupture Simulations on Rough Faults
	Maurer J.; Dunham E.M.; Segall P.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:13
英文摘要	An outstanding question for induced seismicity is whether the volume of injected fluid and/or the spatial extent of the resulting pore pressure and stress perturbations limit rupture size. We simulate ruptures with and without injection-induced pore pressure perturbations, using 2-D dynamic rupture simulations on rough faults. Ruptures are not necessarily limited by pressure perturbations when (1) background shear stress is above a critical value, or (2) pore pressure is high. Both conditions depend on fault roughness. Stress heterogeneity from fault roughness primarily determines where ruptures stop; pore pressure has a secondary effect. Ruptures may be limited by fluid volume or pressure perturbation extent when background stress and fault roughness are low, and the maximum pore pressure perturbation is less than 10% of the background effective normal stress. Future work should combine our methodology with simulation of the loading, injection, and nucleation phases to improve understanding of injection-induced ruptures. © 2020. The Authors.
英文关键词	Pore pressure; Shear stress; Dynamic ruptures; Earthquake size; Effective normal stress; Fluid injections; Injected fluids; Nucleation phasis; Pressure perturbation; Stress perturbations; Induced Seismicity; earthquake event; earthquake rupture; fault plane; fluid injection; induced seismicity; nucleation; perturbation; pore pressure; shear stress
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170145
作者单位	Deptartment of Geophysics, Stanford University, Stanford, CA, United States; Now at Missouri University of Science and Technology, Rolla, MO, United States
推荐引用方式 GB/T 7714	Maurer J.,Dunham E.M.,Segall P.. Role of Fluid Injection on Earthquake Size in Dynamic Rupture Simulations on Rough Faults[J],2020,47(13).
APA	Maurer J.,Dunham E.M.,&Segall P..(2020).Role of Fluid Injection on Earthquake Size in Dynamic Rupture Simulations on Rough Faults.Geophysical Research Letters,47(13).
MLA	Maurer J.,et al."Role of Fluid Injection on Earthquake Size in Dynamic Rupture Simulations on Rough Faults".Geophysical Research Letters 47.13(2020).