| 一种震前超低频密度——应力波 |
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| 引用本文： | 赵复垣,张国栋,韩延本.一种震前超低频密度——应力波[J].国际地震动态,2007(12):26-32. |
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| 作者姓名： | 赵复垣 张国栋 韩延本 |
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| 作者单位： | 中国科学院国家天文台,北京,100012;中国科学院国家天文台,北京,100012;中国科学院国家天文台,北京,100012 |
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| 摘 要： | 地震发生前天文时纬残差观测数据出现异常,得到了不同天文台观测结果的证实。另外,两种与地震相关的物理量震前地下深部物质视电阻率变化和断层活动矩变化,其物理机制的解释以及与后续地震的关联方式和天文时纬残差有很多共性。而且,这3类观测现象与后续地震的关联方式与国外学者提出的热力学弹性回跳模型符合得很好。本文基于现有观测证据和理论模型的一致性,提出地震前在地层构造中存在一种来自孕震区域的超低频密度—应力波。
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| 关 键 词： | 天体测量学 天文时纬残差 铅垂线偏斜 地震 震前密度-应力波 |
| 收稿时间： | 2007-09-28 |
| 修稿时间： | 2007-10-26 |
A Density-Tectonic Stress Wave with Ultra-Low Frequency Before Earthquakes |
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| Zhao Fuyuan,Zhang Guodong,Han Yanben.A Density-Tectonic Stress Wave with Ultra-Low Frequency Before Earthquakes[J].Recent Developments in World Seismology,2007(12):26-32. |
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| Authors: | Zhao Fuyuan Zhang Guodong Han Yanben |
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| Abstract: | A correlation between astrometric residual anomalies of universal time and latitude prior to earthquakes has been found and repeatedly verified by different observatories. The other two kinds of measurement, such as the anomalies of the earth apparent resistivity and the fault moment before earthquakes, have approximatively the same physical mechanism with the astrometric anoma- lies mentioned above. These phenomena are coincidence well with the thermodynamical model suggested by some authors. Based on the consistency between observational data and theoretical model, we propose that there exists a density--tectonic stress wave with ultra-low frequency emitted from the epicenter region before earthquakes. |
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| Keywords: | astrometry residual anomalies of universal time and latitude deviation of plumbline earthquake density--tectonic stress wave |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
