| 云南地区强震前孕震系统的非线性阶段 |
| |
| 引用本文： | 蔡静观,许昭永.云南地区强震前孕震系统的非线性阶段[J].地震研究,1993,16(4):329-337. |
| |
| 作者姓名： | 蔡静观 许昭永 |
| |
| 作者单位： | 云南省地震局，云南省地震局，云南省地震局 昆明 650041，昆明 650041，昆明 650041 |
| |
| 摘 要： | 本文以降维减熵增能的地震学方法，讨论了强震前复杂孕震系统的非线性阶段，云南地区１９７６年以来６级以上的强震震例表明，强震前复杂孕需系统的非线性阶段是普通存在的。但从不同震例。不同方法反映出来的非线性阶段起始时间是有差异的，本文进行了综合判断的尝试，得出孕震系统在强震前１－３年进入非线性阶段。结果还表明，蠕变曲线和累计频度的速率增加比具有普适的特点，前者为２．４左右，后者为１．７左右。
|
| 关 键 词： | 云南 地震 孕震系统 非线性阶段 |
A NONLINEAR STEP OF SEISMOGENIC SYSTEM BEFORE A STRONG EARTHQUAKE IN YUNNAN REGION |
| |
| Cai Jingguan Xu Zhaoyong Zhao Hongsheng.A NONLINEAR STEP OF SEISMOGENIC SYSTEM BEFORE A STRONG EARTHQUAKE IN YUNNAN REGION[J].Journal of Seismological Research,1993,16(4):329-337. |
| |
| Authors: | Cai Jingguan Xu Zhaoyong Zhao Hongsheng |
| |
| Abstract: | A nonlinear step of complicated seismogenic system before a strong earthquake has been discussed through the seismological technique of dimension-lowering, entropy-decreasing and energy-increasing. The studies of strong earthquakes with M= 6 from 1976 up to now show that there commonly exist a nonlinear step of complicated seismogenic system before a strong earthquake, however, starting time of nonlinear step is different from the studies of different earthquakes and methods. In this paper, a trial of comprehensive judgement has been used that seismogenic system has entered into nonlinear step from 1 to 3 years before a strong earthquake occurrence. The result also shows that ratio of speed increments 2.4 for creep curve and 1.7 for accumulated frequency has common features. |
| |
| Keywords: | Strong earthquake development Nonlinear step for dimension-lowering entropy decreasing and energy-increasing Yunnan region |
| 本文献已被 CNKI 维普 等数据库收录！ |
