福建和台湾地震台网测定地震震级差异研究
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摘要
介绍了闽、台地震台网及观测资料情况,统计了1971年以来两台网均有测定的在台湾及其邻近海域地区发生的6级以上地震,并计算了福建地震台网测定近震震级范围、闽台两地震台网测定震级的差量、平均偏差及标准偏差。结果表明,福建地震台网测定台湾及其邻近海域地区强震震级普遍偏小,存在0.3~0.5级的偏差。进而分析了闽、台地震台网测定台湾强震震级的差异关系,对福建地震台网测定台湾及其邻近海域强震震级偏差改正及闽、台今后开展地震联合观测有重要参考价值。
The situation of Fujian and Taiwan seismic networks and their data has been briefly introduced.We collected Taiwan and adjacent sea earthquakes(M≥6.0)recorded by Fujian and Taiwan seismic networks from 1971,and analyzed the range of magnitude determined by Fujian seismic network and magnitude deviation,mean deviation and standard deviation between determined by Fujian network and by Taiwan 's.The result shows M0.3-M0.5 less deviation of Taiwan and adjacent sea macroseisms magnitude determined by Fujian seismic network.And then we analyzed the difference relation between macroseisms magnitudes determined by Fujian seismic network and by Taiwan network.It is an important reference for Taiwan and adjacent sea macroseisms magnitude correction determined by Fujian network and joint observation of Fujian and Taiwan networks.
The situation of Fujian and Taiwan seismic networks and their data has been briefly introduced.We collected Taiwan and adjacent sea earthquakes(M≥6.0)recorded by Fujian and Taiwan seismic networks from 1971,and analyzed the range of magnitude determined by Fujian seismic network and magnitude deviation,mean deviation and standard deviation between determined by Fujian network and by Taiwan 's.The result shows M0.3-M0.5 less deviation of Taiwan and adjacent sea macroseisms magnitude determined by Fujian seismic network.And then we analyzed the difference relation between macroseisms magnitudes determined by Fujian seismic network and by Taiwan network.It is an important reference for Taiwan and adjacent sea macroseisms magnitude correction determined by Fujian network and joint observation of Fujian and Taiwan networks.
引文
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杨智娴.1999.海峡两岸地震目录中台湾地震震级之异同[J].地震学报,21(6):608-615.
陈祥熊,吴长江,黄向荣,等.1997.闽、台两岸区域地震监测台网及地震监测能力比较[J].地震地磁观测与研究,18(3):13-20.
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Gutenberg B.1945.Magnitude determination for deep-focus earthquakes[J].BSSA,35:117-130.
Shin T C.1993.The calculation of local magnitude from the simulatedWood-Anderson seismograms of the short-period seismograms inthe Taiwan area[J].TAO,4:155-170.
傅再扬,吴绍祖,杨贵,等.2004.区域数字地震台网面波震级MS测定与系统误差分析[J].地震地磁观测与研究,25(6):72-77.
杨智娴.1999.海峡两岸地震目录中台湾地震震级之异同[J].地震学报,21(6):608-615.
陈祥熊,吴长江,黄向荣,等.1997.闽、台两岸区域地震监测台网及地震监测能力比较[J].地震地磁观测与研究,18(3):13-20.
林仙坎.2006.闽、台地区近震震级ML量规函数研究[J].中国地震,22(3):287-293.
Richter C F.1935.An instrumental earthquake magnitude Scale[J].BSSA,25:1-32.
Gutenberg B.1945.Amplitudes of Surface waves and magnitudes of shal-low earthquakes[J].BSSA,35:3-12.
Gutenberg B.1945.Amplitudes of P,PP and S and magnitudes of shal-low earthquakes[J].BSSA,35:57-69.
Gutenberg B.1945.Magnitude determination for deep-focus earthquakes[J].BSSA,35:117-130.
Shin T C.1993.The calculation of local magnitude from the simulatedWood-Anderson seismograms of the short-period seismograms inthe Taiwan area[J].TAO,4:155-170.
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