| 兰州台网震级偏差的讨论 |
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| 引用本文： | 张昱,张树勋.兰州台网震级偏差的讨论[J].高原地震,1999(1). |
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| 作者姓名： | 张昱 张树勋 |
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| 作者单位： | 中国地震局兰州地震研究所!兰州，730000 |
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| 摘 要： | 利用兰州遥测台网Dk—1仪记录到的地震，对其测定的近震震级（ML）和面波震级（Ms）存在的偏差进行统计计算。结果发现，该仪器记录的近震级（ML）系统偏高，西藏地区的面波震级（Ms）偏低，国内其它地区及国外地震的面波震级（Ms）基本接近全国的平均水平。同时给出校正值，利用校正值对上例地震重新计算，偏差明显降低。
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| 关 键 词： | 近震震级 面波震级 偏差 校正值 兰州遥测台网 |
DISCUSSION ON THE MAGNITUDE DEVIATION IN LANZHOU TELEMETRIC SEISMIC NETWORK |
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| Zhang Yu,Zhang Shuxun.DISCUSSION ON THE MAGNITUDE DEVIATION IN LANZHOU TELEMETRIC SEISMIC NETWORK[J].Plateau Earthquake Research,1999(1). |
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| Authors: | Zhang Yu Zhang Shuxun |
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| Abstract: | According to the earthquake data recorded by the DK-1 seismograph in Lanzhou telemetric seismic network,the authors have statistically calculated the deviation of local earthquake (ML) and surface wave (Ms) magnitude. The results show that ML system is higher,Ms system in Xizang area is lower,and Ms system in other places including overseas is nearly to China average level. They also calibrate these values and calculate again and find that the magnitude deviation is obviously lower. |
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| Keywords: | Local earthquake magnitude Surface wave magnitude Deviation Calibrated value Lanzhou telemetric seismic network |
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