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DOI | 10.1073/pnas.1819225116 |
Pore-pressure diffusion, enhanced by poroelastic stresses, controls induced seismicity in Oklahoma | |
Zhai, Guang1,2; Shirzaei, Manoochehr1; Manga, Michael2; Chen, Xiaowei3 | |
2019 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2019 |
卷号 | 116期号:33页码:16228-16233 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Induced seismicity linked to geothermal resource exploitation, hydraulic fracturing, and wastewater disposal is evolving into a global issue because of the increasing energy demand. Moderate to large induced earthquakes, causing widespread hazards, are often related to fluid injection into deep permeable formations that are hydraulically connected to the underlying crystalline basement. Using injection data combined with a physics-based linear poroelastic model and rate-and-state friction law, we compute the changes in crustal stress and seismicity rate in Oklahoma. This model can be used to assess earthquake potential on specific fault segments. The regional magnitude-time distribution of the observed magnitude (M) 3+ earthquakes during 2008-2017 is reproducible and is the same for the 2 optimal, conjugate fault orientations suggested for Oklahoma. At the regional scale, the timing of predicted seismicity rate, as opposed to its pattern and amplitude, is insensitive to hydrogeological and nucleation parameters in Oklahoma. Poroelastic stress changes alone have a small effect on the seismic hazard. However, their addition to pore-pressure changes can increase the seismicity rate by 6-fold and 2-fold for central and western Oklahoma, respectively. The injection-rate reduction in 2016 mitigates the exceedance probability of M5.0 by 22% in western Oklahoma, while that of central Oklahoma remains unchanged. A hypothetical injection shut-in in April 2017 causes the earthquake probability to approach its background level by similar to 2025. We conclude that stress perturbation on prestressed faults due to pore-pressure diffusion, enhanced by poroelastic effects, is the primary driver of the induced earthquakes in Oklahoma. |
英文关键词 | induced seismicity waste fluid injection poroelasticity seismicity rate seismic hazard forecasting |
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:000481404300019 |
WOS关键词 | INDUCED EARTHQUAKE SEQUENCE ; WASTE-WATER INJECTION ; FLUID INJECTION ; BARNETT SHALE ; DISPOSAL ; HAZARD ; CALIFORNIA ; LOCATIONS ; FAIRVIEW ; INCREASE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
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/205159 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85281 USA; 2.Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94709 USA; 3.Univ Oklahoma, Sch Geosci, Norman, OK 73019 USA |
推荐引用方式 GB/T 7714 | Zhai, Guang,Shirzaei, Manoochehr,Manga, Michael,et al. Pore-pressure diffusion, enhanced by poroelastic stresses, controls induced seismicity in Oklahoma[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2019,116(33):16228-16233. |
APA | Zhai, Guang,Shirzaei, Manoochehr,Manga, Michael,&Chen, Xiaowei.(2019).Pore-pressure diffusion, enhanced by poroelastic stresses, controls induced seismicity in Oklahoma.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,116(33),16228-16233. |
MLA | Zhai, Guang,et al."Pore-pressure diffusion, enhanced by poroelastic stresses, controls induced seismicity in Oklahoma".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 116.33(2019):16228-16233. |
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