| 利用速度型数字地震仪记录测定面波震级 |
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| 引用本文： | 刘瑞丰,党京平.利用速度型数字地震仪记录测定面波震级[J].地震地磁观测与研究,1996,17(2):1-4. |
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| 作者姓名： | 刘瑞丰 党京平 |
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| 作者单位： | 国家地震局地球物理研究所 |
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| 摘 要： | 根据ＬＡＳＰＥＩ所推荐的面波震公式，本文发展了一种利用长周期速度型数字地震仪记录测定面波震级的新方法，由于长周期数字地震仪基于上都采用速度平坦型设计，周期从３ｓ到２８０ｓ范围内仪器的放大倍数（增益）是一个常数，用本文的方法可以非常方便，准确地测定面波震级，实际计算表明，测定的面波震级与美国ＮＥＩＣ公布的结果相一致。
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| 关 键 词： | 面波 震级 数字化地震仪 地震 |
Determination or surface wave magnitude by Using velocity type digital seimograph recordings |
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| Liu Ruifeng, Dang Jingping and Chen Peishan.Determination or surface wave magnitude by Using velocity type digital seimograph recordings[J].Seismological and Geomagnetic Observation and Research,1996,17(2):1-4. |
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| Authors: | Liu Ruifeng Dang Jingping and Chen Peishan |
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| Abstract: | According to the formula of surface wave magnitude recommened by IASPEI,a new method for determining surface wave magnitude, using long period velocity type digital seismograph recordings,is developed. Due to long period digital seismographs are designed by using Velocity Smooth type, the amplification(gain)of seismographs are invariable in the range of period from 3 to 280 second. Surface magnitudes can be measured conveniently and accurately by using this method, the practice calculation indicates that the surface magnitudes measured by us are consistent with the results announced by NEIC. |
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| Keywords: | surface wave magnitude digital seismograph period |
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