The Proliferation of Induced Seismicity in the Permian Basin, Texas
The Proliferation of Induced Seismicity in the Permian Basin, Texas
复制标题
德克萨斯州二叠纪盆地诱发地震活动的扩散
DOI：
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复制
发表时间：
2021
期刊：
影响因子：
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通讯作者：
D. Trugman
中科院分区：
文献类型：
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作者：
R. Skoumal;D. Trugman
二叠纪盆地有很长的诱发地震的历史，但在过去的20年里，地震活跃率急剧增加，其中包括2020年3月污水处理(WD)可能引发的5.0兆瓦的地震。需要详细描述这一时期二叠纪盆地地震活动扩散的特征，以改进对负责机制的科学理解，并减轻未来的地震危险。由于在2017年德克萨斯地震台网出现之前，区域地震台网稀疏，我们使用距离大部分地震活动100公里的10台TXAR台阵来表征地震活动，目的是在以前工作的基础上改进。通过利用波形相似性的性质，我们使用模板匹配来检测事件，对整个研究区域内空间变化的检测能力进行定量分析。从最初的10,753次事件中，我们确定了45,009次地震和10,208次采石场爆炸。使用我们的地震目录，我们改进了震中位置，比较了相对震级技术，并将地震与WD或水力刺激联系起来。我们进一步使用我们的地震目录来研究德克萨斯州佩科斯市附近地震活动和人类活动之间的关系。通过将我们的地震目录与工业记录进行比较，我们确定自2000年以来德克萨斯州佩科斯附近的绝大多数地震活动可能是由深度超过1.5公里的井中WD的增加引起的。
The Permian Basin has a long history of induced earthquakes, but the seismicity rates have increased dramatically over the past two decades and included a MW 5.0 likely induced by wastewater disposal (WD) in March 2020. A detailed characterization of the proliferation of seismicity in the Permian Basin throughout this time period is needed for improving the scientific understanding of the mechanisms responsible and for mitigating future seismic hazard. Due to a sparse regional seismic network before the advent of Texas Seismological Network in 2017, we characterize seismicity using the 10‐station TXAR array that is 100s of km away from most of the seismicity, with the objective of improving upon the substantial contributions from previous work. By exploiting the nature of waveform similarity, we detect events with template matching, performing a quantitative analysis of spatially varying detection capabilities throughout the study area. From an initial catalog of 10,753 events, we identify 45,009 earthquakes and 10,208 quarry blasts. Using our catalog of earthquakes, we improve epicentral locations, compare relative magnitude techniques, and associate earthquakes to WD or hydraulic stimulations. We further use our earthquake catalog to investigate the relationship between seismicity and human activities near the city of Pecos, Texas. Through a comparison of our earthquake catalog with industrial records, we determine that the vast majority seismicity near Pecos, Texas, since 2000 is likely induced by an increase of WD at wells injecting at depths greater than 1.5 km.
2020 年 3 月西德克萨斯州诱发兆瓦 5.0 地震序列
DOI：
10.1029/2020jb020693
发表时间：
2021
期刊：
Journal of Geophysical Research: Solid Earth
影响因子：
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作者：
Skoumal, Robert J.;Kaven, J. Ole;Barbour, Andrew J.;Wicks, Charles;Brudzinski, Michael R.;Cochran, Elizabeth S.;Rubinstein, Justin L.
通讯作者：
Rubinstein, Justin L.