GSTDTAP  > 气候变化
DOI10.1002/2017GL076790
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
ISSN0094-8276
EISSN1944-8007
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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