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龙岩地震台中强地震前地倾斜异常分析
ANALYSIS OF ANOMALY OF GROUND TITL AT LONGYAN SEISMOSTATION BEFORE TWO MEDIUM-STRONG EARTHQUAKES IN LONGYAN AREA
【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。
【Abstract】 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.
【关键词】 水平摆;
地倾斜;
中强地震;
震前变化;
异常特征;
【Key words】 horizontal pendulum; ground tilt; medium-strong earthquake; variation before earthquake; characteristic mutations;
【Key words】 horizontal pendulum; ground tilt; medium-strong earthquake; variation before earthquake; characteristic mutations;
【基金】 福建省地震局青年科技后备人才基金
- 【文献出处】 大地测量与地球动力学 ,Journal of Geodesy and Geodynamics , 编辑部邮箱 ,2010年06期
- 【分类号】P315.725
- 【被引频次】1
- 【下载频次】47