Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091916 |
Seismic and aseismic fault slip during the initiation phase of the 2017 MW = 6.9 Valparaíso earthquake | |
Emmanuel Caballero; Agnè; s Chounet; Zacharie Duputel; Jorge Jara; Cedric Twardzik; Romain Jolivet | |
2021-02-06 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | Transient deformation associated with foreshocks activity has been observed before large earthquakes, suggesting the occurrence of a detectable pre‐seismic slow slip during the initiation phase. A critical issue consists in discriminating the relative contributions from seismic and aseismic fault slip during the preparation phase of large earthquakes. We focus on the April‐May 2017 Valparaíso earthquake sequence, which involved a MW = 6.9 earthquake preceded by intense foreshock activity. To assess the relative contribution of seismic and aseismic slip, we compare surface displacement predicted from foreshocks source models with transient motion measured prior to the mainshock. The comparison between observed and predicted displacements shows that only half of the total displacement can be explained by the contribution of foreshocks. This result suggests the presence of aseismic preslip during an initiation phase preceding the mainshock. |
领域 | 气候变化 |
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/313780 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Emmanuel Caballero,Agnè,s Chounet,et al. Seismic and aseismic fault slip during the initiation phase of the 2017 MW = 6.9 Valparaíso earthquake[J]. Geophysical Research Letters,2021. |
APA | Emmanuel Caballero.,Agnè.,s Chounet.,Zacharie Duputel.,Jorge Jara.,...&Romain Jolivet.(2021).Seismic and aseismic fault slip during the initiation phase of the 2017 MW = 6.9 Valparaíso earthquake.Geophysical Research Letters. |
MLA | Emmanuel Caballero,et al."Seismic and aseismic fault slip during the initiation phase of the 2017 MW = 6.9 Valparaíso earthquake".Geophysical Research Letters (2021). |
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