渔洞水库地区地震活动性和构造应力场分析  

Seismic Activity and Tectonic Stress Field before and after the Water Storage of Yudong Reservoir in Zhaotong, Yunnan

作　　者：樊跃新[1] 王绍晋[1] 管丽霞 非明伦[1] 谢英情[1] 冉华[1] 王兰兰[1] 

机构地区：[1]云南省地震局,昆明650224 [2]昭通市渔洞水库管理局,昭通657000

出　　处：《地震研究》2007年第1期29-34,共6页Journal of Seismological Research

基　　金：小湾电站水库诱发地震监测预警系统建设项目资助

摘　　要：统计了渔洞水库的水位变化规律,分析了水库蓄水前后库区及其附近地区的地震活动性和构造应力场特征。结果表明,水库蓄水前后研究区地震活动的图像、强度和频次都没有明显变化;水库蓄水和水位变化对研究区构造应力场没有明显的影响。The water level variation of the Yudong reservoir in Zhaotong, Yunnan, and the seismicity and tectonic stress field in the reservoir and nearby before and after the water storage have been analyzed. The results show that the pattern, strength and frequency of the seismic activity do not change obviously before and after the water storage. Both water storage and level variation have not influenced the tectonic stress field in the study area obviously.

关 键 词：地震活动性 构造应力场 渔洞水库 

分 类 号：P315.5[天文地球—地震学]