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Seismological investigation of the 2016 January 6 North Korean underground nuclear test
Zhao, LF (Zhao, Lian-Feng)1; Xie, XB (Xie, Xiao-Bi)2; Wang, WM (Wang, Wei-Min)3; Hao, JL (Hao, Jin-Lai)1; Yao, ZX (Yao, Zhen-Xing)1; Zhao, LF
Source PublicationGEOPHYSICAL JOURNAL INTERNATIONAL
2016
Volume206Issue:3Pages:1487-1491
DOI10.1093/gji/ggw239
AbstractSeismology plays an important role in characterizing potential underground nuclear tests. Using broad-band digital seismic data from Northeast China, South Korea and Japan, we investigated the properties of the recent seismic event occurred in North Korea on 2016 January 6. Using a relative location method and choosing the previous 2006 explosion as the master event, the 2016 event was located within the North Korean nuclear test site, with its epicentre at latitude 41.3003A degrees N and longitude 129.0678A degrees E, approximately 900 m north and 500 m west of the previous event on 2013 February 12. Based on the error ellipse, the relocation uncertainty was approximately 70 m. Using the P/S spectral ratios, including Pg/Lg, Pn/Lg and Pn/Sn, as the discriminants, we identify the 2016 event as an explosion rather than an earthquake. The body-wave magnitude calculated from regional wave Lg is m(b)(Lg) equal to 4.7 +/- A 0.2. Adopting an empirical magnitude-yield relation, and assuming that the explosion is fully coupled and detonated at a normally scaled depth, we find that the seismic yield is about 4 kt, with the uncertainties allowing a range from 2 to 8 kt.
Subject Area地球物理学
WOS IDWOS:000384650400004
Language英语
Indexed BySCI
KeywordHigh-precision Location Seismic Events October 2006 Central-asia Test-site China Explosions Yield Discrimination Pn
Cooperation Status国际
Department碰撞与隆升
SubtypeArticle
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Cited Times:39[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7610
Collection图书馆
Corresponding AuthorZhao, LF
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
2.Univ Calif Santa Cruz, Inst Geophys & Planetary Phys, Santa Cruz, CA 95064 USA
3.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Zhao, LF ,Xie, XB ,Wang, WM ,et al. Seismological investigation of the 2016 January 6 North Korean underground nuclear test[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2016,206(3):1487-1491.
APA Zhao, LF ,Xie, XB ,Wang, WM ,Hao, JL ,Yao, ZX ,&Zhao, LF.(2016).Seismological investigation of the 2016 January 6 North Korean underground nuclear test.GEOPHYSICAL JOURNAL INTERNATIONAL,206(3),1487-1491.
MLA Zhao, LF ,et al."Seismological investigation of the 2016 January 6 North Korean underground nuclear test".GEOPHYSICAL JOURNAL INTERNATIONAL 206.3(2016):1487-1491.
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