气候变化领域集成服务门户(CCPortal): Elevated Seismic Hazard in Kansas Due to High-Volume Injections in Oklahoma

CCPortal

DOI	10.1029/2019GL085705
	Elevated Seismic Hazard in Kansas Due to High-Volume Injections in Oklahoma
	Zhai G.; Shirzaei M.; Manga M.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:5
英文摘要	Induced seismicity has expanded into south-central Kansas, an area with rare damaging natural earthquakes, leading to the second-highest seismicity rate in the central United States after Oklahoma. Here we assess the mechanical effects of large-scale injection in the combined area of western Oklahoma and southern Kansas during 2010–2018 and its link to the observed seismicity using physics-based hydromechanical and seismicity rate models. Such models link injection operations to seismic hazards and allow solving for the spatially variable distribution of background seismic productivity that yields an acceptable match between the observed and modeled seismicity. We show that injection in Oklahoma amplifies the total Coulomb stress change and seismicity rate by 1.5-fold and threefold, respectively, in south-central Kansas. This cross-border interaction modulates the annual earthquake probability in Kansas. We conclude that the issue of induced seismicity is not a local problem due to the far-reaching effects of fluid diffusion. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Diffusion in liquids; Earthquakes; Hazards; Seismic response; Coulomb stress changes; Fluid diffusion; Fluid injections; Large scale injection; Mechanical effects; Natural earthquake; Poro-elasticity; Variable distribution; Induced Seismicity; earthquake; fluid injection; induced seismicity; poroelasticity; seismic hazard; seismic response; seismicity; Kansas; Oklahoma [United States]; United States
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/170596
作者单位	School of Earth and Space Exploration, Arizona State University, Tempe, AZ, United States; Department of Earth and Planetary Science, University of California, Berkeley, CA, United States; Berkeley Seismological Laboratory, University of California, Berkeley, CA, United States
推荐引用方式 GB/T 7714	Zhai G.,Shirzaei M.,Manga M.. Elevated Seismic Hazard in Kansas Due to High-Volume Injections in Oklahoma[J],2020,47(5).
APA	Zhai G.,Shirzaei M.,&Manga M..(2020).Elevated Seismic Hazard in Kansas Due to High-Volume Injections in Oklahoma.Geophysical Research Letters,47(5).
MLA	Zhai G.,et al."Elevated Seismic Hazard in Kansas Due to High-Volume Injections in Oklahoma".Geophysical Research Letters 47.5(2020).