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学科主题: 地球科学::地球物理学
题名: Seismological Investigations of Two Massive Explosions in Tianjin, China
作者: Zhao, X (Zhao, Xu)1, 6; Feng, W (Feng, Wei)2; Tan, YP (Tan, Yipei)3; Li, J (Li, Juan)1; Pei, SP (Pei, Shunping)4; An, YR (An, Yanru)2; Hua, W (Hua, Wei)5; He, SL (He, Shaolin)2; Zhao, Y (Zhao, Yong)2; Liu, J (Liu, Jie)2; Yao, ZX (Yao, Zhenxing)1
通讯作者: Liu, J
刊名: SEISMOLOGICAL RESEARCH LETTERS
发表日期: 2016
DOI: 10.1785/0220150229
卷: 87, 期:4, 页:826-836
收录类别: SCI
合作性质: 国内
文章类型: Article
英文摘要: In this study, we analyze available weak-and strong-motion seismograms to discern the main source characteristics of the 12 August 2015 Tianjin explosions. The disaster involved two large explosions, which can be clearly identified in the near-field seismic recordings. The first explosion (event 1) took place at 15:34:04.68 (UTC) and the second at 15:34:36.94 (UTC). The average time interval between the two events was about 32.3 s, which is consistent with the result determined by cross correlation of the whispering gallery wave (WG phase). The two events did not occur at the same site, and the second explosion was located 65 +/- 10 m northwest (N352 degrees W) of the first one. The local magnitudes ML of the two explosions were further measured as 2.4 and 2.9, respectively. The Fourier spectra from the two closest stations, DAG and BET, show that the predominant frequency of the waveforms ranged from 0.7 to 0.9 Hz after the long-period wavetrains had arrived. According to the distribution of the three-component peak ground acceleration, the area with a shaking intensity of modified Mercalli intensity VI spanned up to 131 km(2). However, the peak intensity of this explosion did not reach an intensity of VII, based on the ground-motion attenuation relation.
语种: 英语
WOS记录号: WOS:000378490100005
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7664
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Geol & Geophys, 19 Beitucheng Western Rd, Beijing 100029, Peoples R China
2.China Earthquake Networks Ctr, 5 Nanheng Rd Sanlihe St, Beijing 100045, Peoples R China
3.Earthquake Adm Tianjin Municipal, Friendship Rd 19, Tianjin 300201, Peoples R China
4.Chinese Acad Sci, Inst Tibetan Plateau Res, Lin Cui Rd, Beijing 100101, Peoples R China
5.China Earthquake Adm, Inst Earthquake Sci, Key Lab Earthquake Predict, Beijing 100036, Peoples R China
6.China Earthquake Networks Ctr, 5 Nanheng Rd,Sanlihe St, Beijing 100045, Peoples R China

Recommended Citation:
Zhao, X ,Feng, W ,Tan, YP ,et al. Seismological Investigations of Two Massive Explosions in Tianjin, China[J]. SEISMOLOGICAL RESEARCH LETTERS,2016,87(4):826-836.
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文件名: V.87(4) 826-836 2016.pdf
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