Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL072552 |
Rupture characteristics of the 2016 Meinong earthquake revealed by the back projection and directivity analysis of teleseismic broadband waveforms | |
Jian, Pei-Ru1; Hung, Shu-Huei1; Meng, Lingsen2; Sun, Daoyuan3,4 | |
2017-04-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | Taiwan; USA; Peoples R China |
英文摘要 | The 2016 Mw 6.4 Meinong earthquake struck a previously unrecognized fault zone in midcrust beneath south Taiwan and inflicted heavy causalities in the populated Tainan City about 30 km northwest of the epicenter. Because of its relatively short rupture duration and P wave trains contaminated by large-amplitude depth phases and reverberations generated in the source region, accurate characterization of the rupture process and source properties for such a shallow strong earthquake remains challenging. Here we present a first high-resolution MUltiple SIgnal Classification back projection source image by using both P and depth-phase sP waves recorded at two large and dense arrays to understand the source behavior and consequent hazards of this peculiar catastrophic event. The results further corroborated by the directivity analysis indicate a unilateral rupture propagating northwestward and slightly downward on the shallow NE-dipping fault plane. The source radiation process is primarily characterized by one single peak, similar to 7 s duration, with a total rupture length of similar to 17 km and average rupture speed of 2.4 km/s. The rupture terminated immediately east of the prominent off-fault aftershock cluster about 20 km northwest of the hypocenter. Synergistic amplification of ground shaking by the directivity and strong excitation of sP and reverberations mainly caused the destruction concentrated in the area further to the northwest away from the rupture zone. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000401847500014 |
WOS关键词 | DEEP EARTHQUAKES ; TAIWAN ; COMPLEXITY ; INVERSION ; SEA |
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/27890 |
专题 | 气候变化 |
作者单位 | 1.Natl Taiwan Univ, Dept Geosci, Taipei, Taiwan; 2.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA; 3.Univ Sci & Technol China, Lab Seismol & Phys Earths Interior, Hefei, Peoples R China; 4.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei, Peoples R China |
推荐引用方式 GB/T 7714 | Jian, Pei-Ru,Hung, Shu-Huei,Meng, Lingsen,et al. Rupture characteristics of the 2016 Meinong earthquake revealed by the back projection and directivity analysis of teleseismic broadband waveforms[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(8). |
APA | Jian, Pei-Ru,Hung, Shu-Huei,Meng, Lingsen,&Sun, Daoyuan.(2017).Rupture characteristics of the 2016 Meinong earthquake revealed by the back projection and directivity analysis of teleseismic broadband waveforms.GEOPHYSICAL RESEARCH LETTERS,44(8). |
MLA | Jian, Pei-Ru,et al."Rupture characteristics of the 2016 Meinong earthquake revealed by the back projection and directivity analysis of teleseismic broadband waveforms".GEOPHYSICAL RESEARCH LETTERS 44.8(2017). |
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