Seismological Investigations of Two Massive Explosions in Tianjin, China
文献类型：期刊论文
| 作者 | Hua, W (Hua, Wei)3; He, SL (He, Shaolin)1; Zhao, Y (Zhao, Yong)1; Liu, J (Liu, Jie)1; Liu, J; Yao, ZX (Yao, Zhenxing)5; Zhao, X (Zhao, Xu)4,5; Feng, W (Feng, Wei)1; Tan, YP (Tan, Yipei)6; Li, J (Li, Juan)5 |
| 刊名 | SEISMOLOGICAL RESEARCH LETTERS
 |
| 出版日期 | 2016 |
| 卷号 | 87期号:4页码:826-836 |
| 关键词 | Seismic Network California Earthquake Site |
| DOI | 10.1785/0220150229 |
| 文献子类 | 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. |
| 学科主题 | 地球物理学 |
| 语种 | 英语 |
| WOS记录号 | WOS:000378490100005 |
| 源URL | [http://ir.itpcas.ac.cn/handle/131C11/7664]  |
| 专题 | 青藏高原研究所_图书馆 |
| 通讯作者 | Liu, J |
| 作者单位 | 1.China Earthquake Networks Ctr, 5 Nanheng Rd Sanlihe St, Beijing 100045, Peoples R China 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Lin Cui Rd, Beijing 100101, Peoples R China 3.China Earthquake Adm, Inst Earthquake Sci, Key Lab Earthquake Predict, Beijing 100036, Peoples R China 4.China Earthquake Networks Ctr, 5 Nanheng Rd,Sanlihe St, Beijing 100045, Peoples R China 5.Chinese Acad Sci, Inst Geol & Geophys, 19 Beitucheng Western Rd, Beijing 100029, Peoples R China 6.Earthquake Adm Tianjin Municipal, Friendship Rd 19, Tianjin 300201, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hua, W ,He, SL ,Zhao, Y ,et al. Seismological Investigations of Two Massive Explosions in Tianjin, China[J]. SEISMOLOGICAL RESEARCH LETTERS,2016,87(4):826-836. |
| APA | Hua, W .,He, SL .,Zhao, Y .,Liu, J .,Liu, J.,...&An, YR .(2016).Seismological Investigations of Two Massive Explosions in Tianjin, China.SEISMOLOGICAL RESEARCH LETTERS,87(4),826-836. |
| MLA | Hua, W ,et al."Seismological Investigations of Two Massive Explosions in Tianjin, China".SEISMOLOGICAL RESEARCH LETTERS 87.4(2016):826-836. |
入库方式： OAI收割
来源：青藏高原研究所
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