【摘要】 计算分析了2013年甘肃岷县漳县6.6级地震邻近区域300 km范围内6个定点形变台站2009-01-01~2013-07-21(地震前一天)26道水管和伸缩仪整点观测数据。通过对数据进行预处理和潮汐参数计算,初步评价了观测数据的质量,并给出了主要潮汐响应参数和平滑数据的日均值曲线。基于日均值曲线分析了形变速率的动态特征,展示了数据观测中较为明显的速率转折和突变,探讨了这些变化与岷县漳县6.6级地震之间的可能联系。更多还原

【Abstract】 The data of 26 channel water-tube tilter and extensometer at 6 permanent stations located around the epicenter of 2013 Minxian-Zhangxian earthquake with Ms 6. 6 during the period of January 1,2009 and July 21,2013( one day before the Minxian-Zhangxian earthquake) were analyzed. The raw data were preprocessed and tidal analyzed,and the quality of the observation was estimated. The tidal response parameters and the smoothed day averaged value were obtained. The relationship between dynamic characteristics of the deformation rates and the earthquake were discussed.更多还原