Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL074767 |
2017 Valparaiso earthquake sequence and the megathrust patchwork of central Chile | |
Nealy, Jennifer L.1; Herman, Matthew W.2; Moore, Ginevra L.1; Hayes, Gavin P.1; Benz, Harley M.1; Bergman, Eric A.3; Barrientos, Sergio E.4 | |
2017-09-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:17 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Chile |
英文摘要 | In April 2017, a sequence of earthquakes offshore Valparaiso, Chile, raised concerns of a potential megathrust earthquake in the near future. The largest event in the 2017 sequence was a M6.9 on 24 April, seemingly colocated with the last great-sized earthquake in the region-a M8.0 in March 1985. The history of large earthquakes in this region shows significant variation in rupture size and extent, typically highlighted by a juxtaposition of large ruptures interspersed with smaller magnitude sequences. We show that the 2017 sequence ruptured an area between the two main slip patches during the 1985 earthquake, rerupturing a patch that had previously slipped during the October 1973 M6.5 earthquake sequence. A significant gap in historic ruptures exists directly to the south of the 2017 sequence, with large enough moment deficit to host a great-sized earthquake in the near future, if it is locked. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000411702400022 |
WOS关键词 | W 8.8 MAULE ; SUBDUCTION ZONE ; RUPTURE ; GREAT ; SLIP ; SEISMICITY ; IQUIQUE ; ILLAPEL ; TRENCH |
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/26376 |
专题 | 气候变化 |
作者单位 | 1.US Geol Survey, Natl Earthquake Informat Ctr, Golden, CO 80401 USA; 2.Penn State Univ, Dept Geosci, University Pk, PA 16802 USA; 3.Global Seismol Serv, Golden, CO USA; 4.Univ Chile, Ctr Sismol Nacl, Santiago, Chile |
推荐引用方式 GB/T 7714 | Nealy, Jennifer L.,Herman, Matthew W.,Moore, Ginevra L.,et al. 2017 Valparaiso earthquake sequence and the megathrust patchwork of central Chile[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(17). |
APA | Nealy, Jennifer L..,Herman, Matthew W..,Moore, Ginevra L..,Hayes, Gavin P..,Benz, Harley M..,...&Barrientos, Sergio E..(2017).2017 Valparaiso earthquake sequence and the megathrust patchwork of central Chile.GEOPHYSICAL RESEARCH LETTERS,44(17). |
MLA | Nealy, Jennifer L.,et al."2017 Valparaiso earthquake sequence and the megathrust patchwork of central Chile".GEOPHYSICAL RESEARCH LETTERS 44.17(2017). |
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