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Ionospheric response following the M-w 7.8 Gorkha earthquake on 25 April 2015

文献类型：期刊论文

作者Liu, Haitao1,2,3; Ding, Feng1,2; Zhao, Biqiang1,2; Li, Jianyong4; Hu, Lianhuan1,2; Wan, Weixing1,2; Ning, Baiqi1,2
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
出版日期2017-06-01
卷号122期号:6页码:6495-6507
关键词coseismic ionospheric disturbances Gorkha earthquake GPS-TEC directivity Lithosphere-Atmosphere-Ionosphere Coupling
ISSN号2169-9380
DOI10.1002/2016JA023079
文献子类Article
英文摘要A detailed observation of the coseismic ionospheric disturbances (CIDs) after the M-w 7.8 Gorkha earthquake has been carried out using total electron content (TEC) data from 333 GPS stations. This inland earthquake occurred on 25 April 2015, at a depth of similar to 15km. Following the quake at 6:11UT, groups of CIDs were observed from 06:18 to 07:00UT. The CIDs we observed could be classified into three groups: CIDs related to gravity waves (GWs), CIDs related to acoustic waves (AWs), and CIDs related to seismic Rayleigh surface waves. The GW-related CIDs traveled at a velocity of similar to 500m/s. They were mainly observed to the south and north of the epicenter, within 600km of the event, with a maximum amplitude of 0.18total electron content unit (TECU; 1TECU=10(16)elm(-2)). The AW-related CIDs traveled at a velocity of similar to 700-1400m/s. They could be observed for 1000km in all directions from the epicenter, with an amplitude of similar to 0.3TECU. The CIDs related to Rayleigh waves could be observed only to the east of the epicenter, at a maximum distance of 1800km. They had an apparent velocity of similar to 2.0-2.3km/s. Through comparing the seismogram data from Incorporated Research Institutions for Seismology to the TEC data, we found that the azimuthal characteristics of the ground vibrations agree with the directivity of the CIDs related to Rayleigh surface waves.
WOS关键词26 DECEMBER 2004 ; TOHOKU EARTHQUAKE ; WENCHUAN EARTHQUAKE ; SUMATRA EARTHQUAKE ; ELECTRON-CONTENT ; SPECTRAL-ANALYSIS ; NEPAL EARTHQUAKE ; INFRASONIC WAVES ; SPACE-SHUTTLE ; PACIFIC COAST
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000405534800041
出版者AMER GEOPHYSICAL UNION
源URL[http://ir.iggcas.ac.cn/handle/132A11/42966]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Ding, Feng
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China
4.China Earthquake Adm, Natl Earthquake Infrastruct Serv, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Haitao,Ding, Feng,Zhao, Biqiang,et al. Ionospheric response following the M-w 7.8 Gorkha earthquake on 25 April 2015[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2017,122(6):6495-6507.
APA Liu, Haitao.,Ding, Feng.,Zhao, Biqiang.,Li, Jianyong.,Hu, Lianhuan.,...&Ning, Baiqi.(2017).Ionospheric response following the M-w 7.8 Gorkha earthquake on 25 April 2015.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,122(6),6495-6507.
MLA Liu, Haitao,et al."Ionospheric response following the M-w 7.8 Gorkha earthquake on 25 April 2015".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 122.6(2017):6495-6507.

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来源：地质与地球物理研究所

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