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DOI | 10.1029/2020GL088168 |
Injection-Induced Earthquakes on Complex Fault Zones of the Raton Basin Illuminated by Machine-Learning Phase Picker and Dense Nodal Array | |
Wang R.; Schmandt B.; Zhang M.; Glasgow M.; Kiser E.; Rysanek S.; Stairs R. | |
发表日期 | 2020 |
ISSN | 0094-8276 |
卷号 | 47期号:14 |
英文摘要 | Seismicity in the Raton Basin over the past two decades suggests reactivation of basement faults due to waste-water injection. In the summer of 2018, 96 short period three-component nodal instruments were installed in a highly active region of the basin for a month. A machine-learning based phase picker (PhaseNet) was adopted and identified millions of picks, which were associated into events using an automated algorithm—REAL (Rapid Earthquake Association and Location). After hypocenter relocation with hypoDD, the earthquake catalog contains 9,259 ML −2.2 to 3 earthquakes focused at depths of 4–6 km. Magnitude of completeness (Mc) varies from −1 at nighttime to −0.5 in daytime, likely reflecting noise variation modulated by wind. The clustered hypocenters with variable depths and focal mechanisms suggest a complex network of basement faults. Frequency-magnitude statistics and the spatiotemporal evolution of seismicity are comparable to tectonic systems. ©2020. American Geophysical Union. All Rights Reserved. |
英文关键词 | Buildings; Complex networks; Earthquakes; Faulting; Automated algorithms; Basement faults; Earthquake catalogs; Hypocenter relocation; Noise variations; Spatiotemporal evolution; Tectonic system; Three component; Machine learning; array; earthquake; earthquake hypocenter; fault zone; frequency-magnitude distribution; machine learning; spatiotemporal analysis; Raton Basin; 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/170120 |
作者单位 | Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM, United States; Department of Earth and Environmental Sciences, Dalhousie University, Halifax, NS, Canada; Department of Geosciences, University of Arizona, Tucson, AZ, United States |
推荐引用方式 GB/T 7714 | Wang R.,Schmandt B.,Zhang M.,et al. Injection-Induced Earthquakes on Complex Fault Zones of the Raton Basin Illuminated by Machine-Learning Phase Picker and Dense Nodal Array[J],2020,47(14). |
APA | Wang R..,Schmandt B..,Zhang M..,Glasgow M..,Kiser E..,...&Stairs R..(2020).Injection-Induced Earthquakes on Complex Fault Zones of the Raton Basin Illuminated by Machine-Learning Phase Picker and Dense Nodal Array.Geophysical Research Letters,47(14). |
MLA | Wang R.,et al."Injection-Induced Earthquakes on Complex Fault Zones of the Raton Basin Illuminated by Machine-Learning Phase Picker and Dense Nodal Array".Geophysical Research Letters 47.14(2020). |
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