Geometric and kinematic characteristics of surface ruptures of Ridgecrest M(w)6. 4-M(w)7. 1 earthquake in Southern California
文献类型:期刊论文
作者 | Ma ZhenNing1; Qian RongYi1; Catchings, Rufus2; Goldman, Mark2; Qi ShengWen3 |
刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION |
出版日期 | 2021-04-01 |
卷号 | 64期号:4页码:1206-1214 |
ISSN号 | 0001-5733 |
关键词 | Ridgecrest earthquake Surface ruptures Field investigation Geometric characteristic |
DOI | 10.6038/cjg202100061 |
英文摘要 | July 4-6, 2019, located near Ridgecrest, Southern California, USA, a series of earthquakes occurred in less than two days, including the strong earthquakes M(w)6. 4 and M(w)7. 1. Two days after the earthquakes, the field geological survey and measurement of the surface ruptures in the epicenter area were carried out. Two fracture zones in 50 km length in NW direction and 10 km length in NE direction have been discovered after a series of Ridgecrest earthquakes. According to the field investigation, the dextral strike slip of surface ruptures in NW direction is produced by the Mw7. 1 earthquake, while the sinistral strike slip of surface ruptures in NE direction is produced by the M(w)6. 4 earthquake. Combining with statistical analysis of earthquake sequence, it's found that NW is the main direction fracture zones of this earthquake sequence and most of the earthquake energy is released. Based on the analysis of time series of earthquakes and dense strip distribution of earthquake sequences, it can be inferred that the earthquake is a group of complex conjugate earthquakes caused by the rupture of two conjugate faults in NE and NW directions. It also can be speculated that the 1\4(w)6. 4 earthquake is the strong foreshock, which promotes the occurrence of M(w)7. 1 earthquake. |
WOS关键词 | 7.1 HECTOR MINE ; EASTERN CALIFORNIA ; YUSHU EARTHQUAKE ; GARLOCK FAULT ; 1992 LANDERS ; SHEAR ZONE ; YUNNAN ; SLIP ; SIMULATION |
WOS研究方向 | Geochemistry & Geophysics |
语种 | 英语 |
出版者 | SCIENCE PRESS |
WOS记录号 | WOS:000647154800006 |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/101235] |
专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
通讯作者 | Qian RongYi |
作者单位 | 1.China Univ Geosci Beijing, Sch Geophys & Informat Technol, Beijing 100083, Peoples R China 2.US Geol Survey, Earthquake Sci Ctr USGS ESC, Moffett Field, CA 94035 USA 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
推荐引用方式 GB/T 7714 | Ma ZhenNing,Qian RongYi,Catchings, Rufus,et al. Geometric and kinematic characteristics of surface ruptures of Ridgecrest M(w)6. 4-M(w)7. 1 earthquake in Southern California[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2021,64(4):1206-1214. |
APA | Ma ZhenNing,Qian RongYi,Catchings, Rufus,Goldman, Mark,&Qi ShengWen.(2021).Geometric and kinematic characteristics of surface ruptures of Ridgecrest M(w)6. 4-M(w)7. 1 earthquake in Southern California.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,64(4),1206-1214. |
MLA | Ma ZhenNing,et al."Geometric and kinematic characteristics of surface ruptures of Ridgecrest M(w)6. 4-M(w)7. 1 earthquake in Southern California".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 64.4(2021):1206-1214. |
入库方式: OAI收割
来源:地质与地球物理研究所
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