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DOI | 10.1029/2021GL096137 |
Detailed 3D Seismic Velocity Structure of the Prague, Oklahoma Fault Zone and the Implications for Induced Seismicity | |
Lipeng He; Qimin Wu; Xiaowei Chen; Xinlei Sun; Zhen Guo; Yongshun John Chen | |
2021-12-06 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | The 2011 Mw 5.7 Prague earthquake is the second largest induced earthquake in Oklahoma, and occurred after decades of wastewater disposal. The local geological structure that led to the triggering of this large earthquake is not well understood. In this study, tomographic inversion of seismic data recorded by a dense local seismic network resulted in a high-resolution 3D velocity model with three major layers. The model clearly illuminates the geometry and characteristics of the Meeker-Prague Fault that hosted the 2011 Prague sequence. A conceptual model is proposed to link the tomographic structure to the triggering process of the sequence. The low-permeability second layer at ∼1.5-3.5 km may be the key that delays the occurrence of the first sizeable earthquake after decades of wastewater injection. However, a low-shear-velocity zone within this layer at the intersection of two major faults could have provided a fluid pathway to facilitate downward fluid propagation. |
领域 | 气候变化 |
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/343076 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Lipeng He,Qimin Wu,Xiaowei Chen,et al. Detailed 3D Seismic Velocity Structure of the Prague, Oklahoma Fault Zone and the Implications for Induced Seismicity[J]. Geophysical Research Letters,2021. |
APA | Lipeng He,Qimin Wu,Xiaowei Chen,Xinlei Sun,Zhen Guo,&Yongshun John Chen.(2021).Detailed 3D Seismic Velocity Structure of the Prague, Oklahoma Fault Zone and the Implications for Induced Seismicity.Geophysical Research Letters. |
MLA | Lipeng He,et al."Detailed 3D Seismic Velocity Structure of the Prague, Oklahoma Fault Zone and the Implications for Induced Seismicity".Geophysical Research Letters (2021). |
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