2009年乌什-阿图什地震危险区异常跟踪  

The Anomaly Tracing in the Wushi-Atux Seismic Dangerous Region in 2009

作　　者：王筱荣[1] 宋春燕[1] 

机构地区：[1]新疆维吾尔自治区地震局,新疆乌鲁木齐830011

出　　处：《华南地震》2010年第2期15-25,共11页South China Journal of Seismology

基　　金：中国地震局震情跟踪合同制定向工作任务专项:2009年度新疆地震重点危险区强震趋势深入跟踪分析研究

摘　　要：分析了乌什-阿图什地震危险区所处的柯坪块体地震时空活动特点:6级以上地震均沿块体边缘分布;6级地震时序分布不均匀,空间分布表现出轮回特征;6级地震前4级地震平静较为普遍,相关构造带以增强-平静为主要特征;响应地震的地点指示意义较为明确。文中还对危险区异常判定及2009年块体3次5级地震异常跟踪进行了总结。This paper analyzed the spatial and temporal feature of earthquakes in Keping block located in the Wushi-Atushi seismic dangerous region.The result showed that the earthquakes with MS≥ 6 were distributed on the edge of the Keping block and had the spatial transmigration and uneven timing distribution feature.The MS4 earthquakes appeared quiet before the MS6 earthquakes,the seismicity in the related tectonic zone was characteristiced of activityquiescence.The response earthquakes indicated the possible location of future moderate earthquakes.The article summarized the seismic dangerous region judgment and seismic anomaly tracing of 3 MS5 earthquakes in the Keping block in 2009.

关 键 词：柯坪块体 地震活动特点 危险区异常跟踪 

分 类 号：P315.75[天文地球—地震学]