Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL088563 |
Seismic Stereometry reveals preparatory behavior and source kinematics of intermediate‐size earthquakes | |
A. Mordret; F. Brenguier; M. Causse; P. Boué; C. Voisin; I. Dumont; F. L. Vernon; J. P. Ampuero | |
2020-08-25 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2020 |
英文摘要 | Although moderate‐size earthquakes are poorly studied by lack of near‐fault observations, they can provide key information about larger damaging earthquakes. Here we propose a new approach, inspired by double‐difference relocation, that uses high coherency waveforms recorded at neighboring sensors, to study the preparation phase and dynamics of moderate‐size earthquakes. We validate this technique by analyzing the 2016, Mw5.2 Borrego Springs earthquake in Southern California, and find consistent rupture velocities of 2 km/s highlighting two main rupture asperities. The analysis of the 2019, Ml5.2 Le Teil earthquake in France reveals slow nucleation at depth that migrates to the surface and propagates Northward with a velocity of ~2.8 km/s, highlighting two main rupture events also imaged by InSAR. By providing unprecedented resolution in our observation of the rupture dynamics, this approach will find useful in better understanding the preparation phase and rupture of both tectonic and induced earthquakes. |
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/293017 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | A. Mordret,F. Brenguier,M. Causse,等. Seismic Stereometry reveals preparatory behavior and source kinematics of intermediate‐size earthquakes[J]. Geophysical Research Letters,2020. |
APA | A. Mordret.,F. Brenguier.,M. Causse.,P. Boué.,C. Voisin.,...&J. P. Ampuero.(2020).Seismic Stereometry reveals preparatory behavior and source kinematics of intermediate‐size earthquakes.Geophysical Research Letters. |
MLA | A. Mordret,et al."Seismic Stereometry reveals preparatory behavior and source kinematics of intermediate‐size earthquakes".Geophysical Research Letters (2020). |
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