利用钻孔应变观测数据测定大震震级
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摘要
尝试对敦化地震台YRY-4型钻孔应变仪记录的应变地震波持续时间进行研究,以中国地震台网统一地震目录M_S≥7震级为参考震级,用最小二乘法求得参考震级公式:M_(F-P)=1.92+1.48 lg(F—P)。通过验证,公式有意义,为现阶段应变地震波的应用找到一条路径。
In this paper,the duration of the strain seismic waves that recorded by model YRY-4 drill strain gauge of Dunhua Seismic Station is inverstigated tentatively.Taking China Seismic Network Catalog M_S≥7 as reference magnitude,calculating the magnitude of earthquake with the continue time of the strain wave in Dunhua Seismic Station,a reference magnitude formula M_(F-P)= 1.92 +1.48 lg(F—P) was obtained with least squares method.By analyzing the validation,the formula we got is meaningful.It provides a path for the application of strain seismic waves in this stage.
In this paper,the duration of the strain seismic waves that recorded by model YRY-4 drill strain gauge of Dunhua Seismic Station is inverstigated tentatively.Taking China Seismic Network Catalog M_S≥7 as reference magnitude,calculating the magnitude of earthquake with the continue time of the strain wave in Dunhua Seismic Station,a reference magnitude formula M_(F-P)= 1.92 +1.48 lg(F—P) was obtained with least squares method.By analyzing the validation,the formula we got is meaningful.It provides a path for the application of strain seismic waves in this stage.
引文
池顺良.深井宽频钻孔应变地震仪与高频地震学[J].地球物理学进展,2007,22(4):1 164-1 170.
黄才中,王皓,陈启林,等.用粟阳台钻孔数字体应变仪测定全球大震震级[J].地震监测,2002,(4):80-89.
苏恺之.钻孔地应变观测新进展[M].北京:地震出版社,2003:132-153.
黄才中,王皓,陈启林,等.用粟阳台钻孔数字体应变仪测定全球大震震级[J].地震监测,2002,(4):80-89.
苏恺之.钻孔地应变观测新进展[M].北京:地震出版社,2003:132-153.
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