新国家标准震级标度与传统震级标度对比研究
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摘要
使用四川省地震台网2013年4月以来的宽频带数字地震资料,对新国家标准震级标度与传统震级标度中的4类震级进行了对比分析。结果表明:新ML与传统ML、MS(BB)与MS7之间的差别最小,相关性最高;所有事件的新mb均大于或等于传统mb;大部分事件的新ML大于传统ML;m B(BB)大于m B的事件多于m B(BB)小于m B的事件;MS(BB)小于MS7的事件数量与MS(BB)大于MS7的事件接近;新ML较传统ML更符合区域地质实际状况,新mb较传统mb更便于测量,MS(BB)较MS7、m B(BB)较m B更适应当前的宽频带数字地震资料,其测定结果更稳定。新国家标准震级标度充分考虑了我国震级测定的历史连续性,很好地继承和衔接了传统震级标度,在可操作性和资料适用性方面有极大提高。
The new national standard magnitude scales and traditional magnitude scales are analyzed by using broadband seismic data from Sichuan seismic network science April of 2013. The results suggest that the differences between the new and the traditional ML,and the MS(BB) and MS7 are small,hence,they are the high correlated. The new mb is greater than or equal to the traditional mb for all events, while the new ML is greater than the traditional ML for most events. In addition,the MS(BB) is less than the MS7 for half of the events. Moreover,the new ML is more suitable in the actual regional geological condition compared with the traditional one,the new mb is easier to measure,the MS(BB) and m B(BB) are more stable and adapt to the current broadband digital seismic data. Therefore,the new national standard magnitude scale not only has a good continuity of magnitude determination,but also has been greatly improved in terms of operability and applicability.
The new national standard magnitude scales and traditional magnitude scales are analyzed by using broadband seismic data from Sichuan seismic network science April of 2013. The results suggest that the differences between the new and the traditional ML,and the MS(BB) and MS7 are small,hence,they are the high correlated. The new mb is greater than or equal to the traditional mb for all events, while the new ML is greater than the traditional ML for most events. In addition,the MS(BB) is less than the MS7 for half of the events. Moreover,the new ML is more suitable in the actual regional geological condition compared with the traditional one,the new mb is easier to measure,the MS(BB) and m B(BB) are more stable and adapt to the current broadband digital seismic data. Therefore,the new national standard magnitude scale not only has a good continuity of magnitude determination,but also has been greatly improved in terms of operability and applicability.
引文
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李善邦.1981.中国地震[M].北京:地震出版社:120–156.Li S B.1981.Earthquakes in China[M].Beijing:Seismological Press:120–156(in Chinese).
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刘瑞丰,陈运泰,任枭,徐志国,孙丽,杨辉,梁建宏,任克新.2007.中国地震台网震级的对比[J].地震学报,29(5):467 –476.Liu R F,Chen Y T,Ren X,Xu Z G,Sun L,Yang H,Liang J H,Ren K X.2007.Comparison between different earthquake magnitudes determined by China seismograph network[J].Acta Seismologica Sinica,29(5):467–476(in Chinese).
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任克新,刘瑞丰,张立文,徐志国,邹立晔.2008.IASPEI新震级标度与传统震级标度的对比[J].地震地磁观测与研究,29 (5):16–21.Ren K X,Liu R F,Zhang L W,Xu Z G,Zou L Y.2008.Comparison between the IASPEI new standard magnitude scales and the tradition standard magnitude scales of China[J].Seismological and Geomagnetic Observation and Research,29(5):16 –21(in Chinese).
王丽艳,刘瑞丰,杨辉.2016.全国分区地方性震级量规函数的研究[J].地震学报,38(5):693–702.Wang L Y,Liu R F,Yang H.2016.Calibration function of local magnitude for different regions in China[J].Acta Seismologica Sinica,38(5):693–702(in Chinese).
杨晶琼,杨周胜,蔡明军,许亚吉,梁勇.2016.IASPEI宽频带面波震级与传统面波震级的对比[J].地震研究,39(2):303 –307.Yang J Q,Yang Z S,Cai M J,Xu Y J,Liang Y.2016.Comparison between the IASPEI standard broadband surface wave magnitude and traditional surface wave magnitude[J].Journal of Seismological Research,39(2):303–307(in Chinese).
中国地震局.2001.地震及前兆数字观测技术规范:地震观测(试行)[M].北京:地震出版社:11–13.China Earthquake Administration.2001.Technical Specification of Earthquake and Precursory Observation:Earthquake Observation(Provisional)[M].Beijing:Seismological Press:11–13(in Chinese).
中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.2017.GB 17740—2017地震震级的规定[S/OL].[2017–05–19].http://www.gb688.cn/bzgk/gb/new Gb Info?hcno=05EBFF86A8F8C24DCF99016C9C7DBF2F.General Administration of Quality Supervision,Inspection and Quarantine of the People’s Republic of China,China National Standardization Management Committee.2017.GB 17740—2017 General Ruler for Earthquake Magnitude[S/OL].[2017–05–19].http://www.gb688.cn/bzgk/gb/new Gb Info?hcno=05EBFF86A8F8C24DCF99016C9C7DBF2F(in Chinese).
Bormann P,Liu R F,Ren X,Gutdeutsch R,Kaiser D,Castellaro S.2007.Chinese national network magnitudes,their relation to NEIC magnitudes,and recommendations for new IASPEI magnitude standards[J].Bull Seismol Soc Am,97(1B):114–127.
Bormann P,Saul J.2008.The new IASPEI standard broadband magnitude m B[J].Seismol Res Lett,79(5):698–705.
IASPEI.2013.Summary of magnitude working group recommendations on standard procedures for determining earthquake magnitudes from digital data[EB/OL].[2016–11–10].ftp://ftp.iaspei.org/pub/commissions/CSOI/Summary_WG_recommendations_20130327.pdf.
Richter C F.1935.An instrumental earthquake magnitude scale[J].Bull Seismol Soc Am,25:1–32.
陈运泰,刘瑞丰.2004.地震的震级[J].地震地磁观测与研究,25(6):1-12.Chen Y T,Liu R F.2004.Earthquake magnitude[J].Seismological and Geomagnetic Observation and Research,25(6):1-12(in Chinese).
国家质量技术监督局.1999.GB 17740-1999地震震级的规定[S].北京:中国标准出版社:1-3.
The State Bureau of Quality and Technical Supervision.1999.GB 17740-1999 General Ruler for Earthquake Magnitude[S].Beijing:Standards Press of China:1-3(in Chinese).
李善邦.1981.中国地震[M].北京:地震出版社:120–156.Li S B.1981.Earthquakes in China[M].Beijing:Seismological Press:120–156(in Chinese).
刘瑞丰,陈运泰,Bormann P,任枭,侯建民,邹立晔,杨辉.2005.中国地震台网与美国地震台网测定震级的对比(Ⅰ):体波震级[J].地震学报,27(6):583–587.Liu R F,Chen Y T,Bormann P,Ren X,Hou J M,Zou L Y,Yang H.2005.Comparison between earthquake magnitudes determined by China seismograph network and US seismograph network(Ⅰ):Body wave magnitude[J].Acta Seismologica Sinica,27(6):583–587(in Chinese).
刘瑞丰,陈运泰,Bormann P,任枭,侯建民,邹立晔,杨辉.2006.中国地震台网与美国地震台网测定震级的对比(Ⅱ):面波震级[J].地震学报,28(1):1–7.Liu R F,Chen Y T,Bormann P,Ren X,Hou J M,Zou L Y,Yang H.2006.Comparison between earthquake magnitudes determined by China seismograph network and US seismograph network(Ⅱ):Surface wave magnitude[J].Acta Seismologica Sinica,28(1):1–7(in Chinese).
刘瑞丰,陈运泰,任枭,徐志国,孙丽,杨辉,梁建宏,任克新.2007.中国地震台网震级的对比[J].地震学报,29(5):467 –476.Liu R F,Chen Y T,Ren X,Xu Z G,Sun L,Yang H,Liang J H,Ren K X.2007.Comparison between different earthquake magnitudes determined by China seismograph network[J].Acta Seismologica Sinica,29(5):467–476(in Chinese).
刘瑞丰,任克新,张立文,韩雪君,徐志国,孙丽,任枭,刘敬光.2011.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,32(3):1–8.Liu R F,Ren K X,Zhang L W,Han X J,Xu Z G,Sun L,Ren X,Liu J G.2011.The method of the measurement of seismic magnitude based on broadband digital waveform[J].Seismological and Geomagnetic Observation and Research,32(3):1–8(in Chinese).
刘瑞丰,陈运泰,任枭,徐志国,王晓欣,邹立晔,张立文.2015.震级的测定[M].北京:地震出版社:1–137.Liu R F,Chen Y T,Ren X,Xu Z G,Wang X X,Zou L Y,Zhang L W.2015.Magnitude Measurement[M].Beijing:Seismological Press:1–137(in Chinese).
任克新,刘瑞丰,张立文,徐志国,邹立晔.2008.IASPEI新震级标度与传统震级标度的对比[J].地震地磁观测与研究,29 (5):16–21.Ren K X,Liu R F,Zhang L W,Xu Z G,Zou L Y.2008.Comparison between the IASPEI new standard magnitude scales and the tradition standard magnitude scales of China[J].Seismological and Geomagnetic Observation and Research,29(5):16 –21(in Chinese).
王丽艳,刘瑞丰,杨辉.2016.全国分区地方性震级量规函数的研究[J].地震学报,38(5):693–702.Wang L Y,Liu R F,Yang H.2016.Calibration function of local magnitude for different regions in China[J].Acta Seismologica Sinica,38(5):693–702(in Chinese).
杨晶琼,杨周胜,蔡明军,许亚吉,梁勇.2016.IASPEI宽频带面波震级与传统面波震级的对比[J].地震研究,39(2):303 –307.Yang J Q,Yang Z S,Cai M J,Xu Y J,Liang Y.2016.Comparison between the IASPEI standard broadband surface wave magnitude and traditional surface wave magnitude[J].Journal of Seismological Research,39(2):303–307(in Chinese).
中国地震局.2001.地震及前兆数字观测技术规范:地震观测(试行)[M].北京:地震出版社:11–13.China Earthquake Administration.2001.Technical Specification of Earthquake and Precursory Observation:Earthquake Observation(Provisional)[M].Beijing:Seismological Press:11–13(in Chinese).
中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.2017.GB 17740—2017地震震级的规定[S/OL].[2017–05–19].http://www.gb688.cn/bzgk/gb/new Gb Info?hcno=05EBFF86A8F8C24DCF99016C9C7DBF2F.General Administration of Quality Supervision,Inspection and Quarantine of the People’s Republic of China,China National Standardization Management Committee.2017.GB 17740—2017 General Ruler for Earthquake Magnitude[S/OL].[2017–05–19].http://www.gb688.cn/bzgk/gb/new Gb Info?hcno=05EBFF86A8F8C24DCF99016C9C7DBF2F(in Chinese).
Bormann P,Liu R F,Ren X,Gutdeutsch R,Kaiser D,Castellaro S.2007.Chinese national network magnitudes,their relation to NEIC magnitudes,and recommendations for new IASPEI magnitude standards[J].Bull Seismol Soc Am,97(1B):114–127.
Bormann P,Saul J.2008.The new IASPEI standard broadband magnitude m B[J].Seismol Res Lett,79(5):698–705.
IASPEI.2013.Summary of magnitude working group recommendations on standard procedures for determining earthquake magnitudes from digital data[EB/OL].[2016–11–10].ftp://ftp.iaspei.org/pub/commissions/CSOI/Summary_WG_recommendations_20130327.pdf.
Richter C F.1935.An instrumental earthquake magnitude scale[J].Bull Seismol Soc Am,25:1–32.