地震震级-频度关系中小震端“掉头”现象解释
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摘要
以辽宁省及其邻近地区的地震记录为例，在考虑台站空间分形的基础上，通过震源深度校正，确认了震级－频度关系中小震端频度的“掉头”现象是由于台站监测能力不足所致，并对小震端出现的截止震级现象做出了解释。
By means of spatial fractals of seismic stations and correction of focal depths with earthquakes occurred in and near Liaoning Province, the authors have proposed that ″fall″ phenomena at the range of small earthquakes in the magnitude frequency relation come from absence monitoring capability of the seismographs, and have explained ″cut off magnitude″ at the range of small earthquakes.
By means of spatial fractals of seismic stations and correction of focal depths with earthquakes occurred in and near Liaoning Province, the authors have proposed that ″fall″ phenomena at the range of small earthquakes in the magnitude frequency relation come from absence monitoring capability of the seismographs, and have explained ″cut off magnitude″ at the range of small earthquakes.
引文
吴忠良．1992．震级－频度关系小震端分布特征的一种可能的解释．地震地磁观测与研究，13（5）孙文福，顾浩鼎．1991．震级－频度的客观分布及计算b值的要点．东北地震研究，7（3）B·N乌洛莫夫著．张肇诚，张炜，曹可珍等译校．1994．地球动力学与地震预报．北京：地震出版社竺原庆一著．赵仲和等译．1984．地震力学．北京：地震出版社
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