气候变化领域集成服务门户(CCPortal): Injection-Induced Earthquakes Near Milan; Kansas; Controlled by Karstic Networks

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DOI	10.1029/2020GL088326
	Injection-Induced Earthquakes Near Milan; Kansas; Controlled by Karstic Networks
	Joubert C.; Sohrabi R.; Rubinstein J.L.; Jansen G.; Miller S.A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:21
英文摘要	Induced earthquakes from waste disposal operations in otherwise tectonically stable regions significantly increases seismic hazard. It remains unclear why injections induce large earthquakes on non-optimally oriented faults kilometers below the injection horizon, particularly since fluids are not injected under pressure, but rather poured, into the well as observed in the Milan, Kansas area. Here we propose a mechanism for induced earthquakes whereby the karstic lower Arbuckle provides the short-circuit that establishes a tens of MPa stepwise fluid pressure increase within the basement upon arrival of the hydraulic connection to the free surface and ultimately induce slip on the deeper fault. We investigate this scenario through modeling and mechanical analysis and show that earthquakes near Milan are likely induced by large (and sudden) fluid pressure changes when the karst network links two previously isolated hydrological systems. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Faulting; Waste disposal; Fluid pressures; Hydraulic connection; Hydrological system; Large earthquakes; Mechanical analysis; Network links; Seismic hazards; Stable region; Earthquakes; fault; fluid pressure; induced seismicity; karst; network analysis; seismic hazard; slip; waste disposal; Arbuckle; California; Kansas; Milan [Kansas]; 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/169519
作者单位	Centre for Hydrogeology and Geothermics (CHYN), University of Neuchâtel, Neuchâtel, Switzerland; United States Geological Survey (USGS), Menlo Park, CA, United States; Climate and Environmental Physics (CEP), University of Bern, Bern, Switzerland
推荐引用方式 GB/T 7714	Joubert C.,Sohrabi R.,Rubinstein J.L.,et al. Injection-Induced Earthquakes Near Milan; Kansas; Controlled by Karstic Networks[J],2020,47(21).
APA	Joubert C.,Sohrabi R.,Rubinstein J.L.,Jansen G.,&Miller S.A..(2020).Injection-Induced Earthquakes Near Milan; Kansas; Controlled by Karstic Networks.Geophysical Research Letters,47(21).
MLA	Joubert C.,et al."Injection-Induced Earthquakes Near Milan; Kansas; Controlled by Karstic Networks".Geophysical Research Letters 47.21(2020).