| Preliminary Research on Relation Between Field and Source in Earthquake Preparation |
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| 作者姓名： | Geng Lumin Zhang Guomin and Shi YaolinCenter for Analysis and Prediction Beijing China Graduate School Academia Sinica Beijing China |
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| 作者单位： | Geng Lumin，Zhang Guomin and Shi YaolinCenter for Analysis and Prediction，Beijing 100036 China Graduate School，Academia Sinica，Beijing 100039 China |
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| 基金项目： | This project was sponsored by the Joint Earthquake Science Foundation, China. |
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| 摘 要： | The "field" and "source" are two important branches in seismology and earthquake research.In this paper,we use a computer model to study the relation between the field and the source in earthquake activity.In our modeling,a network of nonlinear elements is used to simulate seismic activity of seismic zones in a seismotectonic block.Constant strain rate is enforced on the boundary of the model,cyclic seismic activity,quasi-periodic variation of stress field intensity,and strain energy are observed with high and low fluctuations.There is a main seismicity area in seismic cycles,and the main seismicity area shows the spatial migration during different seismic cycles.If the precursory area is related to high element stress,it is found that the development of precursors in our model is quite complicated.No certain relation between the precursors and earthquakes has been discovered.Anomalies show different characteristics in the seismic quiet period and active period.All of the seismic zones in the system hav
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Preliminary Research on Relation Between Field and Source in Earthquake Preparation |
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| Geng Lumin,Zhang Guomin and Shi YaolinCenter for Analysis and Prediction,Beijing China Graduate School,Academia Sinica,Beijing China.Preliminary Research on Relation Between Field and Source in Earthquake Preparation[J].Earthquake Research in China,1995(3). |
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| Authors: | Geng Lumin Zhang Guomin and Shi YaolinCenter for Analysis and Prediction Beijing China Graduate School Academia Sinica Beijing China |
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| Institution: | Geng Lumin,Zhang Guomin and Shi YaolinCenter for Analysis and Prediction,Beijing 100036 China Graduate School,Academia Sinica,Beijing 100039 China |
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| Abstract: | The "field" and "source" are two important branches in seismology and earthquake research.In this paper,we use a computer model to study the relation between the field and the source in earthquake activity.In our modeling,a network of nonlinear elements is used to simulate seismic activity of seismic zones in a seismotectonic block.Constant strain rate is enforced on the boundary of the model,cyclic seismic activity,quasi-periodic variation of stress field intensity,and strain energy are observed with high and low fluctuations.There is a main seismicity area in seismic cycles,and the main seismicity area shows the spatial migration during different seismic cycles.If the precursory area is related to high element stress,it is found that the development of precursors in our model is quite complicated.No certain relation between the precursors and earthquakes has been discovered.Anomalies show different characteristics in the seismic quiet period and active period.All of the seismic zones in the system have been under a state of stress buildup in the seismic active period,although in some of them no large events occurred.The results concluded previously provide a better insight to the field and the source relation in the earthquake preparatory process and activity. |
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| Keywords: | Physical model seismic activity earthquake precursor seismic zone |
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