A broadband crustal Lg wave attenuation model in Northeast China and the Korean Peninsula

doi:10.6038/cjg2018L0394

CORC > 地质与地球物理研究所 > 中国科学院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

	A broadband crustal Lg wave attenuation model in Northeast China and the Korean Peninsula
	Zhao LianFeng 1,2; Xie XiaoBi 3; Wang WeiMin 4; Yao ZhenXing 1,2
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2018-03-01
卷号	61 期号:3 页码:856-871
关键词	Lg q Tomography Attenuation NorTheastern China And The Korean Peninsula
ISSN号	0001-5733
DOI	10.6038/cjg2018L0394
文献子类	Article
英文摘要	Lg wave propagation characteristics are investigated in Northeast China and the Korean Peninsula based on seismograms from 113 crustal earthquakes that were recorded at 602 regional stations distributed throughout eastern China, South Korea, and southern Japan. Based on 22,551 vertical component waveforms, we calculate the amplitude spectra of the Lg waves, extract the single station, two-station, and two-event data, and construct a broadband Lg attenuation model between 0.05 and 10.0 Hz in Northeast China and the Korean Peninsula by using a joint tomographic method to simultaneously obtain Q, source function, and site response. Results show that the sedimentary basin areas are characterized by relatively strong Lg attenuation, whereas the volcanic mountains such as Da Hinggan Ling and Changbai mountains attenuate the Lg waves weakly. The strongest Lg attenuation regions are areas covered by sea water including Bohai Sea, Yellow Sea and Japan Sea. A thinner crust within a typical oceanic lithosphere for the Japan Sea blocks the Lg wave propagation, resulting in no signals can be observed across oceanic path from small earthquakes. We collect observations from large earthquakes with magnitude around m(b) 6.0 to obtain strong Lg attenuation within the crust of Japan Sea.
WOS关键词	UNITED-STATES EARTHQUAKES ; UNDERGROUND NUCLEAR TEST ; REGIONAL SEISMIC PHASES ; EASTERN TIBETAN PLATEAU ; HIGH-PRECISION LOCATION ; MIDDLE-EAST ; PROPAGATION CHARACTERISTICS ; Q TOMOGRAPHY ; VELOCITY STRUCTURE ; LATERAL VARIATIONS
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000428609900005
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/88331]
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	Zhao LianFeng
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.Univ Calif Santa Cruz, Inst Geophys & Planetary Phys, Santa Cruz, CA 95064 USA 4.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Zhao LianFeng,Xie XiaoBi,Wang WeiMin,et al. A broadband crustal Lg wave attenuation model in Northeast China and the Korean Peninsula[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2018,61(3):856-871.
APA	Zhao LianFeng,Xie XiaoBi,Wang WeiMin,&Yao ZhenXing.(2018).A broadband crustal Lg wave attenuation model in Northeast China and the Korean Peninsula.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,61(3),856-871.
MLA	Zhao LianFeng,et al."A broadband crustal Lg wave attenuation model in Northeast China and the Korean Peninsula".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 61.3(2018):856-871.