全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

朝鲜2009年和2013年两次核爆的地震学特征对比研究

DOI: 10.6038/cjg20150311, PP. 809-820

Keywords: 核爆,振幅谱比,衰减,长白山

Full-Text   Cite this paper   Add to My Lib

Abstract:

利用布设在长白山地区临时地震台站接收到的朝鲜核爆的波形资料,对2009年5月25日和2013年2月12日两次朝鲜核试验的地震学特征进行比较.震中距范围从145km到420km.采用P/S型谱比值方法识别朝鲜核爆,通过与2009年3月20日长春地震和2013年1月23日沈阳地震事件的比较,表明在频率大于3Hz时P/S型谱比值能够有效识别发生在中朝边境地区的地下核试验.选定参考台站,利用区域震相Pg波的振幅谱比值计算朝鲜核爆至各台站路径上的相对衰减.结合介质速度模型,在一定程度上反映了长白山地区衰减情况,为进一步研究长白山地区衰减层析成像提供初始模型.

References

[1]  Chen Y, Badal J, Hu J F. 2010. Love and rayleigh wave tomography of the Qinghai-Tibet plateau and surrounding areas. Pure Appl. Geophys., 167(10): 1171-1203.
[2]  Deng H Z, Zhang X K. 2001. Q-value structure of the upper crust in Changbaishan Mt. volcanic region. North China Earthq. Sci., 19(1): 1-9.
[3]  Fisk M D, Gray H L, McCartor G D. 1996. Regional event discrimination without transporting thresholds. Bull. Seismol. Soc. Am., 86(5): 1545-1558.
[4]  Fisk M D. 2006. Source spectral modeling of regional P/S discriminants at nuclear test sites in China and the former Soviet Union. Bull. Seismol. Soc. Am., 96(6): 2348-2367.
[5]  Flanagan M P, Wiens D A. 1994. Radial upper mantle attenuation structure of inactive back arc basins from differential shear wave measurements. J. Geophys. Res., 99(B8): 15469-15485.
[6]  Hong T K, Bang C E, Choi H, et al. 2008. Regional seismic observations of the 9 October 2006 underground nuclear explosion in North Korean and the influence of crustal structure on regional phases. J. Geophys. Res., 113(B3): B03305.
[7]  Kim W Y, Aharonian V, Abbers G, et al. 1997. Discrimination of earthquakes and explosions in Southern Russia using regional high-frequency three-component data from the IRIS/JSP Caucasus network. Bull. Seism. Soc. Am., 87: 569-588.
[8]  Zhao L F, Xie X B, Wang W M, et al. 2012. Yield estimation of the 25 May 2009 North Korean nuclear explosion. Bull. Seism. Soc. Am., 102(2): 467-478.
[9]  Zhao L F, Xie X B, Wang W M, et al. 2013. The 12 February 2013 North Korean underground nuclear test. Seismol. Res. Lett., 85(1): 130-134.
[10]  Kim W Y, Richard P G. 2007. North Korean nuclear test: seismic discrimination at low yield. EOS, Trans., AGU, 88(14): 157-161.
[11]  Koper K D, Herrmann R B, Benz H M. 2008. Overview of open seismic data from the North Korean event of 9 October 2006. Seism. Res. Lett., 79(2): 178-185.
[12]  Lees J M, Park J. 1995. Multiple-taper spectral analysis: a stand-alone C-subroutine. Comput. Geosci., 21(2): 199-236.
[13]  Murphy J R, Barker B W, Sultanov D D, et al. 2009. S-wave generation by underground explosions: Implications from observed frequency-dependent source scaling. Bull. Seism. Soc. Am., 99(2A): 809-829.
[14]  Pasyanos M E, Walter W R, Hazler S E. 2001. A surface wave dispersion study of the Middle East and North Africa for monitoring the comprehensive Nuclear-Test-Ban Treaty. Pure Appl. Geophys., 158(8): 1445-1474.
[15]  Patton H J, Schlittenhardt J. 2005. A transportable Mb(Lg) scale for central Europe and implications for low-magnitude Ms-Mb discrimination. Geophys. J. Int., 163(1): 126-140.
[16]  Roth E G, Wiens D A, Dorman L M, et al. 1999. Seismic attenuation tomography of the Tonga-Fiji region using phase pair methods. J. Geophys. Res., 104(B3): 4795-4809.
[17]  Rougier E, Patton H J, Knight E E, et al. 2011. Constraints on burial depth and yield of the 25 May 2009 North Korean test from hydrodynamic simulations in a granite medium. Geophys. Res. Lett., 38(16): L16316.
[18]  Shin J S, Sheen D H, Kim G. 2010. Regional observations of the second North Korean nuclear test on 2009 May 25. Geophys. J. Int., 180(1): 243-250.
[19]  Taylor S R, Denny M D, Vergino E S, et al. 1989. Regional discrimination between NTS explosions and western U. S. Earthquakes. Bull. Seismol. Soc. Am., 79(4): 1142-1176.
[20]  Teng T L. 1968. Attenuation of body waves and the Q structure of the mantle. J. Geophys. Res., 73(6): 2195-2208.
[21]  Tian Y, Zhao D P, Liu C, et al. 2008. Seismic image and origin of the Changbai intraplate volcano in Northeast Asia. Indian Minerals Special Issue, 61&62: 1-8.
[22]  Walter W R, Mayeda K M, Patton H J. 1995. Phase and spectral ratio discrimination between NTS earthquakes and explosions, part 1: Empirical observations. Bull. Seismol. Soc. Am., 85(4): 1050-1067.
[23]  Xie J K, Patton H J. 1999. Regional phase excitation and propagation in the Lop Nor region of central Asia and implications for P/Lg discriminations. J. Geophys. Res., 104(B1): 941-954.
[24]  Xie J K. 2002. Source scaling of Pn and Lg spectra and their ratios from explosions in central Asia: implications for the identification of small seismic events at regional distances. J. Geophys. Res., 107(B7): ESE 1-1—ESE 1-13.
[25]  Zhang M, Wen L X. 2013. High-precision location and yield of North Korea''s 2013 nuclear test. Geophys. Res. Lett., 40(12): 2 941-2 946.
[26]  Zhao D P, Tian Y, Lei J S, et al. 2009. Seismic image and origin of the Changbai intraplate volcano in East Asia: Role of big mantle wedge above the stagnant Pacific slab. Phys. Earth Planet. Inter., 173(3-4): 197-206.
[27]  Zhao L F, Xie X B, Wang W M, et al. 2008. Regional seismic characteristics of the 9 October 2006 North Korean nuclear test. Bull. Seism. Soc. Am., 98(6): 2571-2589.
[28]  Zhao L F, Xie X B, Wang W M, et al. 2010. Seismic Lg-wave Q tomography in and around Northeast China. J. Geophys. Res., 115(B8): B08307.

Full-Text

comments powered by Disqus

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133