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昆仑-巴颜喀拉块体强震前后地震活动性综合参量变化特征 被引量:1
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作者 王林瑛 韩邵欣 陈学忠 《地震地磁观测与研究》 2011年第6期1-7,共7页
以2001年以来2次8级地震和2010年4月青海玉树Ms 7.2地震为例,分析了R_t值在强震前后随时间和空间异常变化特征,同时对综合参量的预测效能进行了检验。结果表明:在强震前R_t值大都出现明显的异常降低过程。在地震综合参数异常和强震关系... 以2001年以来2次8级地震和2010年4月青海玉树Ms 7.2地震为例,分析了R_t值在强震前后随时间和空间异常变化特征,同时对综合参量的预测效能进行了检验。结果表明:在强震前R_t值大都出现明显的异常降低过程。在地震综合参数异常和强震关系的研究中,利用地质构造块体约束研究的区域,可以较为清晰地看到强震前后地震活动性异常特征的重现性。 展开更多
关键词 昆仑-巴颜喀拉块体 地震综合参数 预测效能检验
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The Ms7. 0 Lushan earthquake and the activity of the Longmenshan fault zone 被引量:3
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作者 Meng Xiangang Liu Zhiguang 《Geodesy and Geodynamics》 2013年第3期40-47,共8页
The Ms7. 0 Lushan earthquake is directly related to the activity of Longmenshan fault zone. In this article, deformation monitoring data in Longmenshan and its surrounding areas were analyzed and the result shows that... The Ms7. 0 Lushan earthquake is directly related to the activity of Longmenshan fault zone. In this article, deformation monitoring data in Longmenshan and its surrounding areas were analyzed and the result shows that the activity trend of Longmenshan fault zone depends on the relative motion between Bayan Hat Block and Sichuan Basin, and the main power of the movement comes from the Tibetan Plateau and the upper Yangtze craton massif of push. In recent years, the Longmenshan and its surrounding areas is one of the main seismogenic area in China's Mainland. In this paper, combination with seismogenic area of geological structure and crustal deformation observation data analysis resuhs, the relationship between the earthquake and Longmenshan fault zone activity was discussed, and the key monitoring areas in the next five years were proposed. 展开更多
关键词 Lushan earthquake bayan hat block Longmengshan fault zone
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