Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL084835 |
Imaging the Fault Damage Zone of the San Jacinto Fault Near Anza With Ambient Noise Tomography Using a Dense Nodal Array | |
Wang, Yadong1; Allam, Amir1; Lin, Fan-Chi1,2 | |
2019-11-25 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
![]() |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:22页码:12938-12948 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Taiwan |
英文摘要 | We apply the double-beamforming tomography to a monthlong temporary dense seismic array to obtain high-resolution images of the San Jacinto Fault's damage zone. We obtain Rayleigh waves between 0.3- and 0.8-s periods via vertical-vertical noise cross correlation, apply double beamforming to obtain phase velocities, and apply a piecewise 1-D least squares inversion to obtain shear velocities in the top 300 m. We observe a similar to 200-m-wide low-velocity zone that narrows with depth, which we interpret as the main damage zone in addition to two other similar to 100-m-wide subsidiary zones corresponding to secondary damaged structures, agreeing with the distribution of fault zone trapped waves produced by local earthquakes. The primary damage zone asymmetry indicates that materials on the northeast side of the fault are stiffer at seismogenic depth and suggests that large San Jacinto earthquakes tend to nucleate to the southeast and propagate to the northwest. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000498354100001 |
WOS关键词 | SURFACE-WAVE TOMOGRAPHY ; SOUTHERN CALIFORNIA ; ANDREAS FAULT ; INTERNAL STRUCTURE ; DYNAMIC RUPTURE ; SEISMIC NOISE ; SLIP DEFICIT ; FIELD ; EARTHQUAKES ; PROPAGATION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/225090 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Univ Utah, Dept Geol & Geophys, Salt Lake City, UT 84112 USA; 2.Acad Sinica, Inst Earth Sci, Taipei, Taiwan |
推荐引用方式 GB/T 7714 | Wang, Yadong,Allam, Amir,Lin, Fan-Chi. Imaging the Fault Damage Zone of the San Jacinto Fault Near Anza With Ambient Noise Tomography Using a Dense Nodal Array[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(22):12938-12948. |
APA | Wang, Yadong,Allam, Amir,&Lin, Fan-Chi.(2019).Imaging the Fault Damage Zone of the San Jacinto Fault Near Anza With Ambient Noise Tomography Using a Dense Nodal Array.GEOPHYSICAL RESEARCH LETTERS,46(22),12938-12948. |
MLA | Wang, Yadong,et al."Imaging the Fault Damage Zone of the San Jacinto Fault Near Anza With Ambient Noise Tomography Using a Dense Nodal Array".GEOPHYSICAL RESEARCH LETTERS 46.22(2019):12938-12948. |
条目包含的文件 | 条目无相关文件。 |
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。
修改评论