气候变化领域集成服务门户(CCPortal): Regional Seismic Characteristics of the 9 October 2006 North Korean Nuclear Test

CCPortal

DOI	10.1785/0120080128
	Regional Seismic Characteristics of the 9 October 2006 North Korean Nuclear Test
	Zhao, Lian-Feng; Xie, Xiao-Bi; Wang, Wei-Min; Yao, Zhen-Xing
通讯作者	Zhao, LF (通讯作者)
发表日期	2008
ISSN	0037-1106
起始页码	2571
结束页码	2589
卷号	98 期号:6
英文摘要	We investigate the regional seismic signature of the 9 October 2006 North Korean nuclear test. Broadband regional data for the nuclear test and a group of earthquakes close to the test site were obtained between December 2000 and November 2006. Epicentral distances from the stations to the test site are between 371 and 1153 km. We first use these regional events to calibrate the Lg-wave magnitude in the network. Then the network is used to calculate m(b) (Lg) = 3.93 for the North Korean nuclear explosion. Using a modified fully coupled magnitude-yield relation, the yield of the North Korean nuclear test is estimated to be 0.48 kt. Because of large uncertainties in the source depth, the estimate is preliminary. The P/S-type spectral ratios Pg/Lg, Pn/Lg, and Pn/Sn are calculated for the nuclear explosion and a group of earthquakes close to the test site. At frequencies above 2 Hz, the network-averaged P/S spectral ratios clearly separate the 9 October 2006 explosion from the regional earthquakes. Our result indicates that a single-blast explosion in the North Korea region shows different seismic characteristics from an earthquake. Any well-coupled single-blast explosion detonated in this region with yield similar to that for the North Korean nuclear test has a large probability of being identified by a regional seismic network such as the one adopted in this study.
关键词	TEST SITE CENTRAL-ASIA LG WAVES EXPLOSIONS DISCRIMINATION YIELD ATTENUATION CHINA TRANSPORTABILITY EARTHQUAKES
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000261183500001
来源期刊	BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257571
推荐引用方式 GB/T 7714	Zhao, Lian-Feng,Xie, Xiao-Bi,Wang, Wei-Min,et al. Regional Seismic Characteristics of the 9 October 2006 North Korean Nuclear Test[J]. 中国科学院青藏高原研究所,2008,98(6).
APA	Zhao, Lian-Feng,Xie, Xiao-Bi,Wang, Wei-Min,&Yao, Zhen-Xing.(2008).Regional Seismic Characteristics of the 9 October 2006 North Korean Nuclear Test.BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA,98(6).
MLA	Zhao, Lian-Feng,et al."Regional Seismic Characteristics of the 9 October 2006 North Korean Nuclear Test".BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 98.6(2008).