首页> 中文期刊> 《地震研究》 >2014年云南盈江6.1级地震宏观异常及其与构造关联性讨论

2014年云南盈江6.1级地震宏观异常及其与构造关联性讨论

         

摘要

2014年云南盈江6.1级地震发生前,在震中及其附近地区约208 km范围内出现高温泉水井喷(高压喷射泥砂),地下水翻花冒泡、发浑、变色、水量增大,动物习性异常等宏观异常现象,宏观异常最早出现时间为震前150 d,最晚为震前2d.这些宏观异常表现出较明显的阶段性,同时呈现出逐渐向震中迁移、靠拢的趋势.几乎所有宏观异常均发生在活动断裂的端部、几组断裂汇而不交的构造部位或是构造盆地内,与构造有着高度的一致性和密切关联性.%Before the Yingjiang M6.1 earthquake,more than 10 macro-anomalies such as blowouts of high-temperature spring water (high pressure injection of mud and sand),bloom-spraying and bubbling,water-clouding,water-discoloring,amount-enlarging of underground waters,and habit-changing of animals have happened within around 200 km extent in the epicentral region of the earthquake.Of them,the earliest thing emerged about 150 days,the latest one occurred about 2 days before the earthquake occurrence.All of which show evident episodes in time and the migration tendency to the epicentral region from outside area gradually in space.Almost all the macro-anomalies emerged in the ends of active faults,in the intersecting-but-no-truncating region of several groups faults,or within the tectonic basins,which suggests that the macro-anomalies have highly consistency and close relevance with the active faults.

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