| 华北块体中等地震活动平静特征 |
| |
| 引用本文： | 陈宇卫,张军,黄显良,闫素萍,庆梅.华北块体中等地震活动平静特征[J].地震地磁观测与研究,2005,26(5):11-18. |
| |
| 作者姓名： | 陈宇卫 张军 黄显良 闫素萍 庆梅 |
| |
| 作者单位： | 中国,合肥,230031,安徽省地震局 |
| |
| 基金项目： | 中国地震局科技攻关项目;安徽省地震局科研项目 |
| |
| 摘 要： | 采用累计频度方法，对华北活动地块Ms≥5．5地震前中等地震聚集活动区的地震做了时空扫描，并对平静现象进行了定量分析，结果表明：对各Ⅱ级活动地块采用不同的扫描方法．在强震前都表现出明显的增强、平静过程，平静的时间长短与所给定的构造区域有关。本文给出了华北3个Ⅱ级活动地块的发震模式。对各活动地块分别进行了R值检验，表明3个活动地块采用不同的发震模式均具有较高的预报效能。
|
| 关 键 词： | 平静 中等地震活动 累计频度 活动地块 |
| 文章编号： | 1003-3246（2005）05-0011-08 |
| 收稿时间： | 2005-02-21 |
| 修稿时间： | 2005年2月21日 |
The quiescence characteristic of moderate seismic activity in North China active block |
| |
| Chen Yuwei,Zhang Jun,Huang Xianliang,Yan Suping,Qing Mei.The quiescence characteristic of moderate seismic activity in North China active block[J].Seismological and Geomagnetic Observation and Research,2005,26(5):11-18. |
| |
| Authors: | Chen Yuwei Zhang Jun Huang Xianliang Yan Suping Qing Mei |
| |
| Institution: | Earthquake Administration of Anhui Province, Hefei 230031, China |
| |
| Abstract: | The time-space distribution of earthquakes of moderate earthquake in concentrated activity area before earthquakes of MS-5.5 in North China active block has been calculated and its quiescence phenomenon has been analyzed by use of the method of accumulative frequency. The results of different scanning methods in all second-order active blocks have reflected the process of enhancement and quiescence before strong earthquakes, which revealed that the length of seismic quiescence time was related to tectonic area. Seismogenic patterns of three second-order active blocks in North China have been put forward. Tests by R-value in three active blocks with different seismogenic patterns indicated high seismic prediction effectiveness. |
| |
| Keywords: | quiescence moderate seismic activity accumulative frequency active block |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
