The 9 september 2016 north Korean underground nuclear test

The 9 september 2016 north Korean underground nuclear test
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2016年9月9日朝鲜进行地下核试验

DOI:
10.1785/0120160355
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发表时间:
2017-12
影响因子:
3
通讯作者:
Yao Zhen-Xing
Yao Zhen-Xing
中科院分区:
地球科学3区
文献类型:
--
作者:
Zhao Lian-Feng;Xie Xiao-Bi;Wang Wei-Min;Fan Na;Zhao Xu;Yao Zhen-Xing

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我们描述了2016年9月9日在朝鲜和2016年9月12日在韩国发生的地震事件。2016年9月9日的事件被确定为爆炸,2016年9月12日的两个事件被确定为自然地震,使用P/S (P和S波)频谱比,Pg/Lg, Pn/Lg和Pn/Sn作为判别因素。利用相对定位法,以2006年北韩地下核试验为主要事件,在北韩核试验场内重新定位了爆炸事件,确定了震中为北纬41.2976度,东经129.0804度。根据区域的Lg波和瑞利波,计算出2016年9月9日事件的体波和面波震级为m(b) (Lg) = 4:8 +/- 0: 2, m -s = 4:2 +/- 0: 1。采用体波震级的经验震级-屈服关系,假设爆炸是完全耦合的,并在正常刻度深度起爆,我们估计地震屈服近似于6 kt,不确定性范围在3 ~ 11 kt之间。如果覆盖深度范围在780 - 1200米之间,那么产量将增加到16-22 kt。
We characterize the seismic events that occurred in North Korea on 9 September 2016 and South Korea on 12 September 2016. The 9 September 2016 event was identified as an explosion, and the two 12 September 2016 events were identified as natural earthquakes using the P/S (P-and S-wave) spectral ratios, Pg/Lg, Pn/Lg, and Pn/Sn as discriminants. The explosive event was relocated within the North Korean nuclear test site using a relative location method and the 2006 North Korea underground nuclear test as the master event, and the epicenter was identified at 41.2976 degrees N latitude and 129.0804 degrees E longitude. From the regional Lg and Rayleigh waves, the body-and surface-wave magnitudes for the 9 September 2016 event were calculated as m(b) (Lg) = 4: 8 +/- 0: 2 and M-s = 4: 2 +/- 0: 1. By adopting an empirical magnitude-yield relation for the body-wave magnitude, and assuming that the explosion was fully coupled and detonated at a normally scaled depth, we estimated that the seismic yield was similar to 6 kt, and the uncertainty range was between 3 and 11 kt. If an overburied depth range between 780 and 1200 m was applied, then the yield would be increased to 16-22 kt.
DOI: 10.1002/2015jb012205
发表时间: 2015-11
影响因子: 3.9
作者:
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通讯作者: Yao, Zhen-Xing
2006 年 10 月 9 日朝鲜核试验的区域地震特征
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发表时间: 2008-12
影响因子: 3
作者:
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通讯作者: Yao Zhen-Xing
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发表时间: 2001-10
影响因子: 2
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发表时间: 2006-04
影响因子: 3
作者:
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