| 利用宽频带数字地震资料测定地震震级的方法研究 |
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| 引用本文： | 刘瑞丰,任克新,张立文,韩雪君,徐志国,孙丽,任枭,刘敬光.利用宽频带数字地震资料测定地震震级的方法研究[J].地震地磁观测与研究,2011,32(3):1-8. |
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| 作者姓名： | 刘瑞丰 任克新 张立文 韩雪君 徐志国 孙丽 任枭 刘敬光 |
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| 作者单位： | 中国北京100045 中国地震台网中心 |
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| 基金项目： | 地震行业科研专项，地震行业科研专项 |
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| 摘 要： | 在国际地震学与地球内部物理学联合会(IASPEI)新推荐震级标度在中国地震台网中心应用的基础上,提出中国地震台网地震震级测定方法.研究指出,地方性震级ML与不同地区的地震波衰减特性具有密切关系,区域性特征明显,为保证中国地方性震级的一致性,宜沿用中国传统测定方法.建议:用IASPEI新推荐的短周期体波震级mb和宽频带体...
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| 关 键 词： | 体波震级 面波震级 矩震级 |
The method of the measurement of seismic magnitude based on broadband digital waveform |
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| Liu Ruifeng,Ren Kexin,Zhang Liwen,Han Xuejun,Xu Zhiguo,Sun Li,Ren Xiao,Liu Jingguang.The method of the measurement of seismic magnitude based on broadband digital waveform[J].Seismological and Geomagnetic Observation and Research,2011,32(3):1-8. |
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| Authors: | Liu Ruifeng Ren Kexin Zhang Liwen Han Xuejun Xu Zhiguo Sun Li Ren Xiao Liu Jingguang |
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| Institution: | (China Earthquake Networks Center, Beijing 100045, China) |
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| Abstract: | Based on the application of the new recommended magnitude scale by International Associ ation of Seismology and Physics of the Earth＇s Interior（IASPEI） in China Earthquake Net works Center（CENC）, we have proposed the method of magnitude measurement of China seismic network in this paper. The study indicated that local magnitude ML. has close relation with attenuation of seismic waves in different areas, which has obvious regional characteristic. In order to continue the coherent of our local magnitude, the traditional method is reserved. In order to bring all su periority of broadband digital seismic data into full play and be able to connect with interna tional magnitude measurement, we recommend using new IASPEI short period body wave magnitude mb and broadband body wave magnitude mB（BB） to replace traditional short peri od body wave magnitude mb and medium and long period body wave magnitude roB, and using IASPEI new surface wave magnitude around 20 sMs （20）, broadband surface magnitude Ms（BB） replace our traditional surface wave magnitude Ms7 and Ms. To make magnitude measurement standard unification, this paper gives the computing formulation and measurement method of new magnitude. When the new magnitude scale replaced the traditional ones, there will be difference between the new measurement and the old, the conversion equation was given in this paper. |
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| Keywords: | body wave magnitude surface wave magnitude moment magnitude |
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