| 火山地震的理论地震图计算方法 |
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| 引用本文： | 冯德益,吴国有,何柏荣,赵谊.火山地震的理论地震图计算方法[J].东北地震研究,1991(4). |
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| 作者姓名： | 冯德益 吴国有 何柏荣 赵谊 |
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| 作者单位： | 天津市地震局，天津市地震局，南开大学，黑龙江省地震局 |
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| 摘 要： | 本文首先分析了不同类型火山地震的波形,提出了相应的震源模型.然后发展了计算层状介质理论地震图的部分分离变量—有限差分方法,其最重要的环节是引用了吸收边界条件,使计算工作得以简化.这种方法特别适用于火山地震的理论地震图计算.最后,本文给出了计算实例.
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| 关 键 词： | 火山地震 理论地震图 震源模型 |
TDE METHOD FOR COMPUTING THEORETICAL SEISMOGRAMS OF VOLCANIC EARTHQUAKE |
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| Feng Deyi, Wu Guoyou.TDE METHOD FOR COMPUTING THEORETICAL SEISMOGRAMS OF VOLCANIC EARTHQUAKE[J].Seismological Research of Northeast China,1991(4). |
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| Authors: | Feng Deyi Wu Guoyou |
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| Institution: | Feng Deyi; Wu Guoyou ( Seismological Bureau of Tianjin )
He Bairong ( Nankai University )
Zhao Yi ( Seismological Bureau of Heilongjiang ) |
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| Abstract: | In this paper, the different types of volcanic earthquakes were analyzed, and the corresponding models of seismic source were given. By recommanding the absorption boundary condition in developing the combinational method of partial separation of variables and finite differences for computing theoretical seismograms in stratified media,the computation process could be simplified. This method can be easily applied to the computation of theoretical seismograms of volcanic earthquake. Finally, some results of theoretical seismograms computed of volcanic earthquake computed by the given method were shown and discussed briefly. |
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| Keywords: | Volcanic earthquake Theoretical seismograms Models of seismic source |
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