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DOI | 10.1038/s41467-020-14745-8 |
Tomography of the source zone of the great 2011 Tohoku earthquake | |
Hua, Yuanyuan1,2; Zhao, Dapeng1; Toyokuni, Genti1; Xu, Yixian3 | |
2020-03-03 | |
发表期刊 | NATURE COMMUNICATIONS
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ISSN | 2041-1723 |
出版年 | 2020 |
卷号 | 11期号:1 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; Peoples R China |
英文摘要 | The mechanism and rupture process of the giant 2011 Tohoku-oki earthquake (Mw 9.0) are still poorly understood due to lack of permanent near-field observations. Using seismic arrival times recorded by dense seismograph networks on land and at ocean floor, we determine a detailed seismic tomography model of the megathrust zone beneath the Tohoku forearc. Our results show that the coseismic slip of the 2011 Tohoku-oki earthquake initiated at a boundary between a down-dip high-velocity anomaly and an up-dip low-velocity anomaly. The slow anomaly at shallow depths near the Japan trench may reflect low-rigidity materials that are close to the free surface, resulting in large slip and weak high-frequency radiation. Our new tomographic model can account for not only large slip near the trench but also weak high-frequency radiation from the shallow rupture areas. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000519260200001 |
WOS关键词 | JAPAN TRENCH ; MW 9.0 ; SUBDUCTION ZONE ; SLIP ; MEGATHRUST ; RUPTURE ; DISPLACEMENT ; PLATE ; STRENGTH ; INSIGHT |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
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/249753 |
专题 | 资源环境科学 |
作者单位 | 1.Tohoku Univ, Grad Sch Sci, Dept Geophys, Sendai, Miyagi 9808578, Japan; 2.China Univ Geosci, Inst Geophys & Geomat, Subsurface Multiscale Imaging Key Lab Hubei Prov, Wuhan 430074, Peoples R China; 3.Zhejiang Univ, Sch Earth Sci, Hangzhou 310027, Zhejiang, Peoples R China |
推荐引用方式 GB/T 7714 | Hua, Yuanyuan,Zhao, Dapeng,Toyokuni, Genti,et al. Tomography of the source zone of the great 2011 Tohoku earthquake[J]. NATURE COMMUNICATIONS,2020,11(1). |
APA | Hua, Yuanyuan,Zhao, Dapeng,Toyokuni, Genti,&Xu, Yixian.(2020).Tomography of the source zone of the great 2011 Tohoku earthquake.NATURE COMMUNICATIONS,11(1). |
MLA | Hua, Yuanyuan,et al."Tomography of the source zone of the great 2011 Tohoku earthquake".NATURE COMMUNICATIONS 11.1(2020). |
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