2005年新疆乌什6.3级地震前异常特征分析  

ANALYSIS ON ANOMALOUS CHARACTERISTICS BEFORE WUSHI Ms6.3 EARTHQUAKE IN 2005 IN XINJIANG

作　　者：潘振生[1] 刘辉[1] 祝军[1] 徐衍刚[1] 徐向宏[1] 

机构地区：[1]新疆维吾尔自治区地震局阿克苏中心地震台,新疆阿克苏843000

出　　处：《高原地震》2008年第1期31-37,共7页Plateau Earthquake Research

摘　　要：分析了2005年2月15日乌什6.3级地震前乌什地区的地震活动和前兆异常。乌什6.3级地震前,乌什—柯坪地区中小地震活动有明显的增强—平静过程,符合柯坪块体6级地震轮回规律。研究表明,震前乌什附近地区有5项地震学参数空间扫描和5项地震学参数时间进程存在中短期异常,且存在阿合奇台地倾斜EW分量年变形态改变、固体潮汐畸变和巴楚地应力观测值大幅度波动等前兆异常。The seismic activity and precursory anomalies in Wushi region before Wushi Ms6.3 earthquake on Feb. 15, 2005 are analyzed, the activity of middle - small earthquakes shows strength - quietness process, and this agrees with the active regular of Ms≥6.0 earthquakes in Keping block . The result shows there are middle - short term anomalies of five seismic spatial parameters and five temporal parameters in Wushi region, and the annual deformation of Aheqi tilt changed in EW direction, solid tide and Bachu grotmd stress are anomalies before Wushi Ms6.3 earthquake.

关 键 词：异常分析 时空扫描 乌什地震 

分 类 号：P315.73[天文地球—地震学]