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DOI | 10.1002/2017GL076790 |
Controls on the T Phase Energy Fluxes Recorded on Juan Fernandez Island by Continental Seismic Wave Paths and Nazca Bathymetry | |
Saez, Miguel1,2; Ruiz, Sergio1 | |
2018-03-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:6页码:2610-2617 |
文章类型 | Article |
语种 | 英语 |
国家 | Chile |
英文摘要 | T phases from 54 South American earthquakes with M-w > 5.2 are observed at a broadband station on Juan Fernandez Island. We computed the T phase energy flux (TPEF) values of the seismograms. The TPEF values show a large dispersion that can be explained by considering the tectonic characteristics of the South American plate and the Nazca plate bathymetry. The TPEFs generated by the 2015 Illapel and 2017 Valparaiso seismic sequences were controlled by the positions of the interface events along the dip. The central and downdip interplate earthquakes were more efficient in the generation of T phases than the near-trench interplate earthquakes (depths of <15 km). The variations in the generation efficiency with depth are explained by the continental raypaths of the body waves and the incidence angles of waves entering the sound fixing and ranging channel. Additionally, we observed differences in the TPEFs from both earthquake sequences that were controlled by seamounts atop the Nazca plate along the T phase paths. |
英文关键词 | T phase T phase energy flux Juan Fernandez Island wave propagation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000430106000007 |
WOS关键词 | EARTHQUAKES ; CHILE ; ARC ; GENERATION ; SPECTRA ; TSUNAMI ; JAPAN ; RIDGE |
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/26247 |
专题 | 气候变化 |
作者单位 | 1.Univ Chile, Geophys Dept, Santiago, Chile; 2.Univ Chile, Geol Dept, Santiago, Chile |
推荐引用方式 GB/T 7714 | Saez, Miguel,Ruiz, Sergio. Controls on the T Phase Energy Fluxes Recorded on Juan Fernandez Island by Continental Seismic Wave Paths and Nazca Bathymetry[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(6):2610-2617. |
APA | Saez, Miguel,&Ruiz, Sergio.(2018).Controls on the T Phase Energy Fluxes Recorded on Juan Fernandez Island by Continental Seismic Wave Paths and Nazca Bathymetry.GEOPHYSICAL RESEARCH LETTERS,45(6),2610-2617. |
MLA | Saez, Miguel,et al."Controls on the T Phase Energy Fluxes Recorded on Juan Fernandez Island by Continental Seismic Wave Paths and Nazca Bathymetry".GEOPHYSICAL RESEARCH LETTERS 45.6(2018):2610-2617. |
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