| 大庆台网震级测定偏差研究 |
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| 引用本文： | 孟宪森 朱玉文. 大庆台网震级测定偏差研究[J]. 地震地磁观测与研究, 1997, 18(3): 61-64 |
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| 作者姓名： | 孟宪森 朱玉文 |
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| 作者单位： | 黑龙江省地震局，大庆地震台，宾县地震台 |
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| 摘 要： | 对大庆台网深井摆和ＤＫ－１仪器测定的震级偏差进行了研究。发现井下摆测定震级偏低，原因主要是井下摆记录穿透波缺少地面反射产生的二倍效应。ＤＫ－１测定震级偏高，产生偏差原因有两点：冲积层谐振引起地动位移放大；地层结构变化导致位移放大
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| 关 键 词： | 大庆；震级；偏差 |
A study on magnitude deviation in Daqing network |
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| Meng Xiansen ),Zhu Yuwen ),Guan Yuhui ),Jiang Yongchen ),We Xiaohong ) and Pan Guochen ) ) Seismological Bureau of Heilongjiang Province,Harbin ,China ) Seismic Station of Daqing,Heilongjiang Province. A study on magnitude deviation in Daqing network[J]. Seismological and Geomagnetic Observation and Research, 1997, 18(3): 61-64 |
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| Authors: | Meng Xiansen ) Zhu Yuwen ) Guan Yuhui ) Jiang Yongchen ) We Xiaohong ) Pan Guochen ) ) Seismological Bureau of Heilongjiang Province Harbin China ) Seismic Station of Daqing Heilongjiang Province |
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| Affiliation: | Meng Xiansen 1),Zhu Yuwen 2),Guan Yuhui 1),Jiang Yongchen 3),We Xiaohong 2) and Pan Guochen 2) 1) Seismological Bureau of Heilongjiang Province,Harbin 150008,China 2) Seismic Station of Daqing,Heilongjiang Province |
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| Abstract: | We study the magnitude deviation of borehole seismograph and DK 1 seismolograph in Daqing network. It is found that the calculating magnitude of borehole seismograph is lower than average magnitude determined by the observation network of Heilongjiang Province. The deviation comes from that seismic wave recorded by borehole seismograph is penetrating wave and decreases half than the wave recorded by those stations on basement rock. The magnitude determined by DK 1 is higher. The cause of deviation was considered: 1 the harmonic oscillation between superficial sedimentary layer and period of seismic wave lead to magnification of displacement; 2 the change of stratal configuration lead to magnification of displacement. |
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| Keywords: | Daqing magnitude deviation |
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