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| 安宁河-则木河断裂带地震视应力研究 | |
| 引用本文： | 乔慧珍,程万正,陈学忠.安宁河-则木河断裂带地震视应力研究[J].地震研究,2006,29(2):125-130. |
| 作者姓名： | 乔慧珍 程万正 陈学忠 |
| 作者单位： | 1. 中国科学技术大学空间与地球科学系,合肥,230026 2. 四川省地震局,成都,610041 3. 中国地震局地球物理研究所,北京,100081 |
| 基金项目： | 地震科学联合基金;国家科技攻关项目 |
| 摘 要： | 利用四川和云南数字遥测地震台网的数字地震记录资料。研究了包括地震视应力在内的震源参数。首先对资料进行预处理，然后计算地动位移和速度的功率谱积分，再计算地震辐射能量和视应力等震源参数。根据计算结果分震级区间研究了视应力值沿安宁河-则木河断裂带的分布情况，及该断裂带上中等地震的震源谱及参数差异，认为安宁河断裂带视应力相对更高。 |
| 关 键 词： | 布伦位错模式 震源参数 拐角频率 应力降 视应力 安宁河-则木河断裂带 |
| 文章编号： | 1000-0666-(2006)02-0125-06 |
| 收稿时间： | 2005-06-06 |
| 修稿时间： | 2005年6月6日 |
Study on the Apparent Stress of the Earthquakes on Anninghe-Zemuhe Fault |
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| QIAO Hui-zhen,CHENG Wan-zheng,CHEN Xue-zhong.Study on the Apparent Stress of the Earthquakes on Anninghe-Zemuhe Fault[J].Journal of Seismological Research,2006,29(2):125-130. | |
| Authors: | QIAO Hui-zhen CHENG Wan-zheng CHEN Xue-zhong |
| Institution: | 1. School of Earth and Space Science, University of Science and Technology of China, Hefei 230026, China;2. Institute of Earthquake Prediction, Earthquake Administration of Sichuan Province, Chengdu 610041, China;3. Institute of Geophysics, CEA, Beijing 100081, China |
| Abstract: | From the records of the regional digital telemetric seismic networks in Sichuan and Yunnan, we select 56 earthquakes that occurred on the Anninghe-Zemuhe fault, calculate their comer frequency, zero frequency limit, rupture radius, seismic energy, seismic moment, stress drop and apparent stress, and study the distribution of the apparent stress. The results show that the apparent stress is high on the Anninghe fault, and the risk to occur the destructive earthquake on its Shimian-Xichang segment is more than that on the Zemuhe fault. |
| Keywords: | Brune's dislocation model focal parameter corner frequency stress drop apparent stress Anninghe-Zemuhe fault |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |