Revisiting evidence for widespread seismicity in the upper mantle under Los Angeles
文献类型：期刊论文
| 作者 | Yang, Lei1,2; Liu, Xin2; Beroza, Gregory C.2 |
| 刊名 | SCIENCE ADVANCES
 |
| 出版日期 | 2021 |
| 卷号 | 7期号:4页码:7 |
| ISSN号 | 2375-2548 |
| DOI | 10.1126/sciadv.abf2862 |
| 英文摘要 | We revisit the finding of widespread deep seismicity in the upper mantle imaged with a dense, temporary nodal seismic array in Long Beach, California using back-projection to detect candidate events and trace randomization to develop a reliable imaging threshold for candidate detections. We find that nearly all detections of small events at depths greater than 20 kilometers in the upper mantle fall below the reliability threshold. We find a modest number of small, shallower events in the crust that appear to align with the active Newport-Inglewood Fault. These events occur primarily at 15- to 20-kilometer depth near the base of the seismogenic zone. Localized seismicity under fault zones suggests that the deep extensions of active faults are localized and deforming, with stress concentration leading to a concentration of small events, near the seismic-aseismic transition. |
| WOS关键词 | LONG-BEACH ; FOCAL DEPTHS ; FAULT ; ARRAY ; EARTHQUAKES ; CALIFORNIA ; BENEATH |
| 资助项目 | US Geological Survey (USGS)[G20AP00015] ; Southern California Earthquake Center (SCEC)[19101] ; SCEC[10871] ; NSF[EAR-1600087] ; USGS cooperative agreement[G17AC00047] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000610099000044 |
| 出版者 | AMER ASSOC ADVANCEMENT SCIENCE |
| 资助机构 | US Geological Survey (USGS) ; US Geological Survey (USGS) ; US Geological Survey (USGS) ; US Geological Survey (USGS) ; Southern California Earthquake Center (SCEC) ; Southern California Earthquake Center (SCEC) ; Southern California Earthquake Center (SCEC) ; Southern California Earthquake Center (SCEC) ; SCEC ; SCEC ; SCEC ; SCEC ; NSF ; NSF ; NSF ; NSF ; USGS cooperative agreement ; USGS cooperative agreement ; USGS cooperative agreement ; USGS cooperative agreement ; US Geological Survey (USGS) ; US Geological Survey (USGS) ; US Geological Survey (USGS) ; US Geological Survey (USGS) ; Southern California Earthquake Center (SCEC) ; Southern California Earthquake Center (SCEC) ; Southern California Earthquake Center (SCEC) ; Southern California Earthquake Center (SCEC) ; SCEC ; SCEC ; SCEC ; SCEC ; NSF ; NSF ; NSF ; NSF ; USGS cooperative agreement ; USGS cooperative agreement ; USGS cooperative agreement ; USGS cooperative agreement ; US Geological Survey (USGS) ; US Geological Survey (USGS) ; US Geological Survey (USGS) ; US Geological Survey (USGS) ; Southern California Earthquake Center (SCEC) ; Southern California Earthquake Center (SCEC) ; Southern California Earthquake Center (SCEC) ; Southern California Earthquake Center (SCEC) ; SCEC ; SCEC ; SCEC ; SCEC ; NSF ; NSF ; NSF ; NSF ; USGS cooperative agreement ; USGS cooperative agreement ; USGS cooperative agreement ; USGS cooperative agreement ; US Geological Survey (USGS) ; US Geological Survey (USGS) ; US Geological Survey (USGS) ; US Geological Survey (USGS) ; Southern California Earthquake Center (SCEC) ; Southern California Earthquake Center (SCEC) ; Southern California Earthquake Center (SCEC) ; Southern California Earthquake Center (SCEC) ; SCEC ; SCEC ; SCEC ; SCEC ; NSF ; NSF ; NSF ; NSF ; USGS cooperative agreement ; USGS cooperative agreement ; USGS cooperative agreement ; USGS cooperative agreement |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/100048]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Liu, Xin; Beroza, Gregory C. |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Stanford Univ, Dept Geophys, Stanford, CA 94305 USA |
| 推荐引用方式 GB/T 7714 | Yang, Lei,Liu, Xin,Beroza, Gregory C.. Revisiting evidence for widespread seismicity in the upper mantle under Los Angeles[J]. SCIENCE ADVANCES,2021,7(4):7. |
| APA | Yang, Lei,Liu, Xin,&Beroza, Gregory C..(2021).Revisiting evidence for widespread seismicity in the upper mantle under Los Angeles.SCIENCE ADVANCES,7(4),7. |
| MLA | Yang, Lei,et al."Revisiting evidence for widespread seismicity in the upper mantle under Los Angeles".SCIENCE ADVANCES 7.4(2021):7. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。