热门
Toward understanding tectonic control on the M-w 8.8 2010 Maule Chile earthquake
文献类型：期刊论文
| 作者 | Moreno, M.1; Melnick, D.2; Rosenau, M.1; Baez, J.3; Klotz, J.1; Oncken, O.1; Tassara, A.3; Chen, J.1,4 ; Bataille, K.3; Bevis, M.5
|
| 刊名 | EARTH AND PLANETARY SCIENCE LETTERS
 |
| 出版日期 | 2012-03-01 |
| 卷号 | 321期号:1页码:152-165 |
| 关键词 | GPS Chile Maule slip model FEM |
| 英文摘要 | The Maule earthquake of 27th February 2010 (M-w = 8.8) affected similar to 500 km of the Nazca-South America plate boundary in south-central Chile producing spectacular crustal deformation. Here, we present a detailed estimate of static coseismic surface offsets as measured by survey and continuous GPS, both in near- and far-field regions. Earthquake slip along the megathrust has been inferred from a Joint inversion of our new data together with published GPS, InSAR, and land-level changes data using Green's functions generated by a spherical finite-element model with realistic subduction zone geometry. The combination of the data sets provided a good resolution, indicating that most of the slip was well resolved. Coseismic slip was concentrated north of the epicenter with up to 16 m of slip, whereas to the south it reached over 10 m within two minor patches. A comparison of coseismic slip with the slip deficit accumulated since the last great earthquake in 1835 suggests that the 2010 event closed a mature seismic gap. Slip deficit distribution shows an apparent local overshoot that highlight cycle-to-cycle variability, which has to be taken into account when anticipating future events from interseismic observations. Rupture propagation was obviously not affected by bathymetric features of the incoming plate. Instead, splay faults in the upper plate seem to have limited rupture propagation in the updip and along-strike directions. Additionally, we found that along-strike gradients in slip are spatially correlated with geometrical inflections of the megathrust. Our study suggests that persistent tectonic features may control strain accumulation and release along subduction megathrusts. (C) 2012 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Geochemistry & Geophysics |
| 研究领域[WOS] | Geochemistry & Geophysics |
| 关键词[WOS] | GREAT SUBDUCTION EARTHQUAKES ; TOHOKU-OKI EARTHQUAKE ; SAN-ANDREAS FAULT ; STRAIN ACCUMULATION ; HECTOR MINE ; ZONE ; DEFORMATION ; CALIFORNIA ; RUPTURE ; SLIP |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000301909200016 |
| 源URL | [http://119.78.226.72/handle/331011/18091]  |
| 专题 | 上海天文台_天文地球动力学研究中心 |
| 作者单位 | 1.Helmholtz Zentrum Potsdam, Potsdam, Germany 2.Univ Potsdam, Potsdam, Germany 3.Univ Concepcion, Concepcion, Chile 4.Shanghai Astron Observ, Shanghai, Peoples R China 5.Ohio State Univ, Columbus, OH 43210 USA 6.Univ Grenoble 1, Grenoble, France 7.Tech Univ Berlin, Berlin, Germany 8.Ecole Normale Super, F-75231 Paris, France 9.Univ Hawaii, Honolulu, HI 96822 USA 10.Univ Liverpool, Liverpool L69 3BX, Merseyside, England |
| 推荐引用方式 GB/T 7714 | Moreno, M.,Melnick, D.,Rosenau, M.,et al. Toward understanding tectonic control on the M-w 8.8 2010 Maule Chile earthquake[J]. EARTH AND PLANETARY SCIENCE LETTERS,2012,321(1):152-165. |
| APA | Moreno, M..,Melnick, D..,Rosenau, M..,Baez, J..,Klotz, J..,...&Hase, H..(2012).Toward understanding tectonic control on the M-w 8.8 2010 Maule Chile earthquake.EARTH AND PLANETARY SCIENCE LETTERS,321(1),152-165. |
| MLA | Moreno, M.,et al."Toward understanding tectonic control on the M-w 8.8 2010 Maule Chile earthquake".EARTH AND PLANETARY SCIENCE LETTERS 321.1(2012):152-165. |
入库方式： OAI收割
来源：上海天文台
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。