Institutional Repository of Key Laboratory of Petroleum Resource Research, Chinese Academy of Sciences
Research of the long-term gravity change pattern related to Chile earthquake via GRACE RL05 data | |
Yan ChangDa1,2,3; Xu Ya1,2 | |
2019-06-01 | |
发表期刊 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
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ISSN | 0001-5733 |
卷号 | 62期号:6页码:2115-2127 |
摘要 | Large scale gravity change related to earthquakes could be observed by GRACE satellite gravity data and the changing patterns could be recognized. Co-seismic and post-seismic gravity change could be observed close to the epicenter of the M(w)8.8 Chile earthquake in 2010. This paper calculated the co-seismic and post-seismic gravity change of the 2010 Chile earthquake based on the GRACE RL05 Level-2 time-variable gravity data. From the co-seismic result, we discovered that the co-seismic maximum gravity change reached - 5 mu Gal. Our method of reducing the disturbance of water mass change by calculating the 3-year average before and after the earthquake performed well. From the post-seismic result, we observed that the gravity change from 2011 to 2016 having a first increase then decrease pattern. The fitting to the postseismic change revealed that the post-seismic gravity change is about l mu Gal close to the epicenter, and the characteristic time is about 1. 1 year. The Chile earthquake didn't show a typical postseismic change of two terms (short and long). |
关键词 | Chile Earthquake GRACE Post-seismic gravity change |
DOI | 10.6038/cjg2019L0642 |
关键词[WOS] | SUMATRA-ANDAMAN EARTHQUAKE ; DEFORMATION ; SUBSIDENCE ; MAULE |
语种 | 英语 |
WOS研究方向 | Geochemistry & Geophysics |
WOS类目 | Geochemistry & Geophysics |
WOS记录号 | WOS:000470821500011 |
出版者 | SCIENCE PRESS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.iggcas.ac.cn/handle/132A11/92538 |
专题 | 油气资源研究院重点实验室 |
通讯作者 | Xu Ya |
作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
第一作者单位 | 油气资源研究院重点实验室; 中国科学院地质与地球物理研究所 |
通讯作者单位 | 油气资源研究院重点实验室; 中国科学院地质与地球物理研究所 |
推荐引用方式 GB/T 7714 | Yan ChangDa,Xu Ya. Research of the long-term gravity change pattern related to Chile earthquake via GRACE RL05 data[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2019,62(6):2115-2127. |
APA | Yan ChangDa,&Xu Ya.(2019).Research of the long-term gravity change pattern related to Chile earthquake via GRACE RL05 data.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,62(6),2115-2127. |
MLA | Yan ChangDa,et al."Research of the long-term gravity change pattern related to Chile earthquake via GRACE RL05 data".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 62.6(2019):2115-2127. |
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