| 北京地震台远震Pn、PnPn波分析 |
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| 引用本文： | 朱战斌.北京地震台远震Pn、PnPn波分析[J].地震地磁观测与研究,2012,33(5):49-54. |
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| 作者姓名： | 朱战斌 |
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| 作者单位： | 中国北京100095,北京国家地球观象台 |
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| 基金项目： | 中央公益性科研院所基本科研业务专项 |
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| 摘 要： | 在北京地震台NCDSN宽频带地震图集编辑工作中，发现Pn波在远至震中距16．8°的地震中仍然作为初至波被清晰记录，而PnPn波则延续至震中距30°左右仍以非常明显的震相特征被记录下来。
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| 关 键 词： | 远震 Pn波 PnPn波 北京台走时表 |
The analysis of phase Pn and PnPn that recored in tele-earthquake on Beijing Seismic Station |
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| Zhu Zhanbin.The analysis of phase Pn and PnPn that recored in tele-earthquake on Beijing Seismic Station[J].Seismological and Geomagnetic Observation and Research,2012,33(5):49-54. |
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| Authors: | Zhu Zhanbin |
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| Institution: | Zhu Zhanbin (Beijing Seismic Station, Beijing 100095, China) |
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| Abstract: | During the work of making the typical seismic atlas of the broadband seismic record of NCDSN Beijing Seismic Station, we found the first arrival phase that recorded in the far distance of epicenter 16.8° earthquake was still the Pn, and the phase PnPn as the obvious characteristic semismic phase was recored continuously to the distance of epicenter about 30°. In this paper, it tries to show and prove the characteristics and the existence evidences of the teleseismic Pn and PnPn, and also tries to explain the reasons of the PnPn amplitude is much larger than the Pn amplitude several times. |
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| Keywords: | tele-earthquake phase Pn phase PnPn BJT travel time table |
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