龙岩地震台中强地震前地倾斜异常分析
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摘要
采用多种数学方法,对龙岩地震台SQ-70型水平摆倾斜仪1989—1998年的观测数据进行处理,并利用EIS2000软件进行绘图分析。得出:龙岩地区两次4.5级以上地震前,龙岩地震台地倾斜观测值均有异常变化。
The observations of the horizonal penbulum tiltmeter at Longyqn seismostation from 1989 to 1998 are arranged systematically,and then,the data are processed by using a variety of mathematical methods,and their result curves are drawn out and analyzed with software EIS2000.It can be seen that there were anomalous variation of the ground tilt value at the Longyan station before the two above %M%s4.5 earthquakes in Longyan area.
The observations of the horizonal penbulum tiltmeter at Longyqn seismostation from 1989 to 1998 are arranged systematically,and then,the data are processed by using a variety of mathematical methods,and their result curves are drawn out and analyzed with software EIS2000.It can be seen that there were anomalous variation of the ground tilt value at the Longyan station before the two above %M%s4.5 earthquakes in Longyan area.
引文
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3魏伯林,等.东南沿海地震活动特征[M].北京:地震出版社,2001.(Wei Bolin,et al.Characteristics of seismic ac-tivity along the southeast coast M].Beijing:SeismologicalPress,2001)
4牛安福,等.地壳持续加速变形与地震关系的研究[J].大地测量与地球动力学,2002,(1):29-33.(Niu Anfu,etal.Study on the continuously accelearated deformation andthe relationship with earthquakes[J].Journal of Geodesyand Geodynamics,2002,(1):29-33)
5蒋骏,等.地震前兆信息处理与软件系统[M].北京:地震出版社,2000.(Jiang Jun,et al.Seismic precursory infor-mation processing and software system[M].Beijing:Seismo-logical Press,2000)
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