气候变化领域集成服务门户(CCPortal): Spatiotemporal Analysis of Seismotectonic State of Injection-Induced Seismicity Clusters in the Western Canada Sedimentary Basin

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DOI	10.1029/2020JB021362
	Spatiotemporal Analysis of Seismotectonic State of Injection-Induced Seismicity Clusters in the Western Canada Sedimentary Basin
	Dokht R.M.H.; Kao H.; Babaie Mahani A.; Visser R.
发表日期	2021
ISSN	21699313
卷号	126 期号:4
英文摘要	The observations of spatiotemporal distribution of seismicity in western Canada indicate that the occurrence of earthquakes is tied to the hydraulic fracturing operations and disposal of coproduced wastewater. In this study, we investigate the temporal changes in the frequency-magnitude distributions for multiple clusters of induced events in regions where the level of background seismicity is low. The induced events are clustered into six major groups using density-based spatial and soft clustering algorithms based on their epicenters. Each cluster is identified by different distributions of earthquake magnitudes and injection scenarios. The linear relationship between the number of induced earthquakes and cumulative injection volume enables us, on a regional scale, to quantitatively characterize the seismotectonic conditions of the clusters using the estimates of the seismogenic indices. The seismogenic index provides a means to estimate the occurrence probability of earthquakes with a given magnitude induced during injection. The calculated seismogenic indices agree very well with the expected seismic response to hydraulic fracturing and wastewater disposal and show a strong correlation with tectonically accumulated strain energy. Statistical models based on the seismogenic index can be employed to mitigate the potential risk of large magnitude induced events. © 2021. Her Majesty the Queen in Right of Canada. Reproduced with the permission of the Minister of Natural Resources Canada.
英文关键词	Induced seismicity; seismogenic index; Western Canadian Sedimentary Basin
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187222
作者单位	Pacific Geoscience Centre, Geological Survey of Canada, Natural Resources Canada, Sidney, BC, Canada; School of Earth and Ocean Sciences, University of Victoria, Victoria, BC, Canada; Geoscience BC, Vancouver, BC, Canada
推荐引用方式 GB/T 7714	Dokht R.M.H.,Kao H.,Babaie Mahani A.,et al. Spatiotemporal Analysis of Seismotectonic State of Injection-Induced Seismicity Clusters in the Western Canada Sedimentary Basin[J],2021,126(4).
APA	Dokht R.M.H.,Kao H.,Babaie Mahani A.,&Visser R..(2021).Spatiotemporal Analysis of Seismotectonic State of Injection-Induced Seismicity Clusters in the Western Canada Sedimentary Basin.Journal of Geophysical Research: Solid Earth,126(4).
MLA	Dokht R.M.H.,et al."Spatiotemporal Analysis of Seismotectonic State of Injection-Induced Seismicity Clusters in the Western Canada Sedimentary Basin".Journal of Geophysical Research: Solid Earth 126.4(2021).