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天祝地震前后地震的谱结构变化
VARIATION OF SPECTRAL STRUCTURE BEFORE AND AFTER TIANZHU EARTHQUAKE
【摘要】 利用天祝地震前后的资料,采用了比普通频谱分析分辨率更高的最大熵谱方法进行处理,展示了主震前及余震的频谱结构变化,试图提取地震发生前的一些地球物理信息,这对于地震预报将是有益的。
【Abstract】 Using Tianzhu earthquake data, the authors have analyzed the variation of frequency-spectrum structure before the Tianzhu earthquake and the aftershock by the method of the Largest entropy spectrum whose resolution is higher than the common frequency -spectrum analysis, and they try to get the geophysical information for the prediction before the earthquake.
【关键词】 前震;
余震;
最大熵谱分析;
地震预报;
天祝地震;
【Key words】 Pre-earthquake; Aftershock Largest entropy spectrum analysis; Earthquake prediction Tianzhu earthquake;
【Key words】 Pre-earthquake; Aftershock Largest entropy spectrum analysis; Earthquake prediction Tianzhu earthquake;
- 【文献出处】 高原地震 ,Platean Earthquake Research , 编辑部邮箱 ,1999年01期
- 【分类号】P315.02
- 【被引频次】1
- 【下载频次】29