Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL087722 |
Stress Field Variation During the 2019 Ridgecrest Earthquake Sequence | |
Shuzhong Sheng; Lingsen Meng | |
2020-07-19 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | We investigate the spatiotemporal variations of the stress field and the deviatoric stress associated with the 2019 Ridgecrest earthquake sequence using the USGS earthquake focal mechanisms. We find that while the M 6.4 foreshock causes no notable stress changes, the stress field adjustment due to the M 7.1 mainshock exhibits significant spatial complexities. The area of large stress change is generally correlated with the fault segments with large coseismic slip. Although there are no resolvable stress changes at the two terminal ends of the mainshock, the mainshock produces a ~ 5° clockwise rotation of the maximum horizontal stress (SHmax) near the M 6.4 foreshock epicenter. The inferred deviatoric stress is approximately 8.0 MPa, almost equivalent to the coseismic stress drop of 7.4 MPa in its epicenter area. Such nearly complete stress release is supported by the post‐seismic stress heterogeneity near the mainshock epicenter. |
领域 | 气候变化 |
URL | 查看原文 |
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文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/284197 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Shuzhong Sheng,Lingsen Meng. Stress Field Variation During the 2019 Ridgecrest Earthquake Sequence[J]. Geophysical Research Letters,2020. |
APA | Shuzhong Sheng,&Lingsen Meng.(2020).Stress Field Variation During the 2019 Ridgecrest Earthquake Sequence.Geophysical Research Letters. |
MLA | Shuzhong Sheng,et al."Stress Field Variation During the 2019 Ridgecrest Earthquake Sequence".Geophysical Research Letters (2020). |
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