摘要
对新疆地区进行了加卸载响应比的时空扫描计算,考察了研究区2000-2012年期间加卸载响应比异常区域的时空演化特征,利用孕震积分定量统计了新疆地区5级以上地震与LURR的时空关系;并用2011-2012年的扫描结果与次年实际发生的5级以上地震进行对比,发现绝大部分的中强地震都发生在前1年的预测区域内。基于加卸载响应比的时空扫描结果,分别对2011-2012年发生的4个6级地震进行了孕震积分时程曲线分析,结果显示,实际地震发生之前几个月孕震积分均会达到峰值,并在高值波动过程中或高值回落后发震。
The tempo-spatial scanning of Load /Unload Response Ratio in the Xinjiang region was conducted,and the evolutionary characteristics of tempo-spatial of LURR abnormal regions in2000 - 2012,and the statistics of the quantitative relations between earthquakes and tempo-spatial evolution of LURR were researched on the basis of integral of LURR. The scanning results during2011 - 2012 and the MS≥5. 0 earthquakes happened in the second year were compared. The result shows that most of moderately strong earthquakes happened in the predicted region preceding year. The variation of integral of LURR against time for four earthquakes with MS6. 0 in the Xinjiang region in 2011 - 2012 has been calculated respectively. The result shows that integral of LURR will reach peak value several months before the earthquakes,and earthquakes will happen during the course of high value fluctuation or fall back.
出处
《中国地震》
北大核心
2014年第3期442-453,共12页
Earthquake Research in China
基金
地震科技星火计划项目(xh13027)资助
